ライフサイエンスコーパス: Bu

1 Bu(4)NI-catalyzed regioselective N(2)-methylation, N(2)-

2 Bud activity is regulated by diverse environmental and d

3 Bud cold hardiness was determined (low temperature exoth

4 Bud development was characterized using scanning electro

5 Bud emergence is essential for degradation of the mitoti

6 Bud formation by Saccharomyces cerevisiae must be coordi

7 Bud outgrowth is controlled by environmental and endogen

8 Bud sites are selected differently in haploid and diploi

9 Bud tip progenitor cells give rise to all murine lung ep

10 y single-crystal X-ray diffraction (R: CMe(2)Bu, CMe(2)(CH(2))(2)CHMe(2)).

11 lopropyl, ABCDs) in the presence of GaI(3) + Bu(4)N(+)GaI(4)(-) results in 5-iodo-5-arylpent-2-enylma

12 brium is explored for the {WTp(NO)(PBu(3))} (Bu = n-butyl; Tp = trispyrazoylborate) system as a funct

13 s obtained from the reaction of Pt(COD)2 and Bu(t)3SnH, followed by addition of CNBu(t).

14 ed from simple alkyl-substituted alkynes and Bu(3)SnH in high yield and good regioselectivity; these

15 h alkyl metal reagents, such as Et(2) Zn and Bu(2) Mg.

16 due to steric effects imparted by the bulky Bu(t) groups that distort the geometry of the complex co

17 affects the oxidative properties of t-BuOOt-Bu by intercepting the t-BuO(*) radicals with the format

18 elphalan/alemtuzumab (n = 20), Flu/busulfan (Bu)/alemtuzumab (n = 8), and Flu/Bu/antithymocyte globul

19 In total, five compounds [R = butyl (Bu), R = ethyl (Et), R = methoxymethyl (MeOMe), R = meth

20 H2 CH2 NSiMe2 Bu(t) )2 CH2 CH2 NSi(Me)(CH2 )(Bu(t) )}] (6) produced the diuranium mu-phosphido comple

21 fludarabine+IV busulfan AUC >= 5000/d x 4 d (Bu>=20000), and (4) fludarabine+IV busulfan AUC 4000/d x

22 ations of rac-8DL(Me) with rac-8DL(R) (R=Et, Bu) have yielded high-molecular-weight, crystalline isot

23 .46] P = .81) between the control and FLAMSA-Bu arms.

24 abine/amsacrine/cytarabine-busulphan (FLAMSA-Bu), but the impact of this intensified conditioning reg

25 to a fludarabine-based RIC regimen or FLAMSA-Bu.

26 intensified RIC conditioning regimen, FLAMSA-Bu, did not improve outcomes in adults transplanted for

27 u/busulfan (Bu)/alemtuzumab (n = 8), and Flu/Bu/antithymocyte globulin (n = 1).

28 tive Sn-H bond activation of hydrostannanes (Bu(3)SnH) by tunable heterobimetallic (NHC)Cu-[M(CO)] ca

29 The installed Bu(3)Sn groups serve as chemical handles for further fun

30 going 'facilitated passive cooling' at Korle Bu Teaching Hospital, Accra, Ghana.

31 iometric quantities of base (10-20 mol % KOt-Bu) and open to air.

32 Treatment of an azulitriphyrin with KOt-Bu-t-BuOOH gave rise to oxidative ring contractions that

33 te a reactive peroxide by reaction with [KOt-Bu]4 as indicated by density functional theory (DFT) cal

34 Chinese herbal medicine Bu-Shen-Jiang-Ya decoction (BSJYD) is reported to be ben

35 mined include the all-ferrous clusters [ (n) Bu(4)N][((tbs)L)Fe(3)(mu(3)-Cl)] (1) ([(tbs)L](6-) = [1,

36 do copper clusters [Cu(28) H(15) (S(2) CN(n) Bu(2) )(12) ](+) or [Cu(20) H(11) {S(2) P(O(i) Pr)(2) }(

37 Au(32) (R(3) P)(12) Cl(8) (R=Et, (n) Pr, (n) Bu) were synthesized in a straightforward fashion by red

38 Alkyl Grignard reagents (Et, (n)Bu, (i)Pr, cyclohexyl), with the exception of (t)BuMgCl,

39 and LPt(IV)F(2)(Ar)(HX) (X = NHAlk; Alk = n-Bu, PhCH(2), cyclo-C(6)H(11), t-Bu, cyclopropylmethyl) b

40 This may explain why N-Ph and N-Bu imines are not hydrogenated.

41 bis(dithiolene) complexes formulated as ([(n-Bu)4N][M(dm-dddt)2] (M = Au, Ni), which are isostructura

42 NaOt-Bu was found to deprotonate the phenol product and to pr

43 n the catalytic reaction indicated that NaOt-Bu was necessary for catalysis, but kinetic analysis sho

44 NBD-Bu shows a significant fluorescence enhancement upon sel

45 A nitrobenzoxadiazole-based fluoroprobe (NBD-Bu) is designed to probe cellular metabolic activity in

46 ng results consolidated the potential of NBD-Bu for detection of abnormal cellular metabolic activity

47 y this finding, the site- specificity of NBD-Bu has been explored through a competitive displacement

48 4=12-crown-4 ether) with [U{N(CH2 CH2 NSiMe2 Bu(t) )2 CH2 CH2 NSi(Me)(CH2 )(Bu(t) )}] (6) produced th

49 Pn(SiMe3 )2 }] [Tren(DMBS) =N(CH2 CH2 NSiMe2 Bu(t) )3 , An=U, Pn=P, As, Sb, Bi; An=Th, Pn=P, As; Tren

50 S) )(Cl)] [Zr1; Tren(DMBS) =N(CH2 CH2 NSiMe2 Bu(t) )3 ] with NaPH2 gave the terminal parent phosphani

51 Na(12C4)2 ] [7, Tren(DMBS) =N(CH2 CH2 NSiMe2 Bu(t) )3 ].

52 tic experiments indicate the syn addition of Bu(3)SnH to the alkynes and imply the involvement of Sn-

53 nd a higher-lying UV-absorbing S(2) state of Bu(+) symmetry.

54 An Ot-Bu substituent was added ortho to the dialkylphosphino g

55 e recently reported four-shell Au133(SC6H4-p-Bu(t))52 nanocluster.

56 analogous complexes Pt(SnR3)2(CNBu(t))2 (R = Bu(t), Mes, Ph, or Pr(i)), only the Bu(t) analogue does

57 itution of chloride ligands by racemic 4-(s) Bu-phenolates and subsequent crystallization, where the

58 The {Cr8 } metallacrown [CrF(O2 C(t) Bu)2 ]8 , containing a F-lined internal cavity, shows hi

59 of heterometallic [Cat][Tix MO(x+1 )(O2 C(t) Bu)2x+2 ] rings is reported where Cat=a secondary or ter

60 y-product is found [Cat][Tix O(x+1 )(O2 C(t) Bu)2x-1 ].

61 nion of triphenylsilanol) and the 2,4-di-(t) Bu-PhO(-) (2,4-di-(t) Bu-PhO(-) =anion of 2,4-di-tertbut

62 ol) and the 2,4-di-(t) Bu-PhO(-) (2,4-di-(t) Bu-PhO(-) =anion of 2,4-di-tertbutylphenol) ligands comb

63 (N6) , leads to [Dy(III) (L(N6) )(2,4-di-(t) Bu-PhO)(2) ](PF(6) ) (1), [Dy(III) (L(N6) )(Ph(3) SiO)(2

64 ond, similar to Bergman's seminal Cp*Ir(N(t) Bu) imido complex.

65 [1,2-(LSi)(2) C(2) B(10) H(10) ; L=PhC(N(t) Bu)(2) ], reaction with adamantyl azide (AdN(3) ) afford

66 silylene borane 1 (LSi-R-BMes2 ; L=PhC(N(t) Bu)2 ; R=1,12-xanthendiyl spacer; Mes=2,4,6-Me3 C6 H2 ),

67 try of the pentameric macrocycle [{P(mu-N(t) Bu}(2) NH](5) with a range of anionic and neutral guests

68 ] ((tBu) L={(2,6-(i) Pr(2) C(6) H(3) )NC((t) Bu)}(2) CH).

69 a monometallic dysprosium complex, [Dy(O(t) Bu)2 (py)5 ][BPh4 ] (5), that shows the largest effectiv

70 Employing an excess of (t) Bu(3) ArO(.) under 1 atm of NH(3) gas at 23 degrees C re

71 he 2,4,6-tri-tert-butylphenoxyl radical ((t) Bu(3) ArO(.) ) as the H atom acceptor.

72 nt from the previously reported Au30 S(S-(t) Bu)18 nanocluster protected by 18 tert-butylthiolate lig

73 ilyl supported stannylene ((Mes) TerSn(Si(t) Bu(3) ) [(Mes) Ter=2,6-(2,4,6-Me(3) C(6) H(2) )(2) C(6)

74 precursor for hydrogen atom transfer to (t) Bu(3) ArO(.) .

75 e), and Cp*U((t)Bu-(Mes)PDI(Me)) (THF) (1-(t)Bu) (2,6-((Mes)N horizontal lineCMe)2-p-R-C5H2N, Mes = 2

76 PA), and Cp*U((t)Bu-(Mes)PDI(Me))(THF) (1-(t)Bu).

77 t-butyl-substituted analogue, Cp*U(NTol)2((t)Bu-(Mes)PDI(Me)) (3-(t)Bu), displays the same electronic

78 )PDI(Me))][SbF6] (4-Cp*) and [Cp*U(NTol)2((t)Bu-(Mes)PDI(Me))][SbF6] (4-(t)Bu), respectively, as conf

79 dride complexes [((t)Bu-PNP*)Ir(H)2] (2) ((t)Bu-PNP*, deprotonated (t)Bu-PNP ligand) and [((t)Bu-PNP)

80 ligands (where Cp(ttt) is {1,2,4-C(5)H(2) (t)Bu(3)}).

81 a: R(1) = R(2) = Et; 2b: R(1) = H, R(2) = (t)Bu) in greater than 70% yield as mixed PPN and alkyl amm

82 Reduction of Th(OC(6)H(2)(t)Bu(2)-2,6-Me-4)(4) using either KC(8) or Li in THF forms

83 the salts [K(THF)(5)(Et(2)O)][Th(OC(6)H(2)(t)Bu(2)-2,6-Me-4)(4)] and [Li(THF)(4)][Th(OC(6)H(2)(t)Bu(2

84 ,6-Me-4)(4)] and [Li(THF)(4)][Th(OC(6)H(2)(t)Bu(2)-2,6-Me-4)(4)].

85 ))(2)][B(C(6)F(5))(4)] (Cp(ttt) = C(5)H(2)(t)Bu(3)-1,2,4); however, relaxation is faster in 1 overall

86 robimetallic hydrido species [=SiOTa(CH(2)(t)Bu)(2){IrH(2)(Cp*)}], 5, and [=SiOTa(CH(2)(t)Bu)H{IrH(2)

87 ading to a tetranuclear species [{Ta(CH(2)(t)Bu)(2)}(Cp*IrH)](2), 4.

88 e elimination route from Ta(CH(t)Bu)(CH(2)(t)Bu)(3) and Cp*IrH(4).

89 ep by step anchoring of a W(=C(t)Bu)(CH(2)(t)Bu)(3) complex on a highly crystalline and mesoporous MO

90 ntalum/iridium hydrido complex, [{Ta(CH(2)(t)Bu)(3)}{IrH(2)(Cp*)}] 1, featuring a very short metal-me

91 Bu)(2){IrH(2)(Cp*)}], 5, and [=SiOTa(CH(2)(t)Bu)H{IrH(2)(Cp*)}], 6, using a surface organometallic ch

92 ddlewheel-based coordination cages, M(24)((t)Bu-bdc)(24) (M = Cr, Mo, Ru; (t)Bu-bdc(2-) = 5-tert-buty

93 e; (Mes)PDI(Me) = 2,6-((Mes)N=CMe)2C5H3N; (t)Bu-(Mes)PDI(Me) = 2,6-((Mes)N=CMe)2-p-C(CH3)3C5H2N; Mes

94 phenyl; R = H, (Mes)PDI(Me); R = C(CH3)3, (t)Bu-(Mes)PDI(Me)), has been investigated.

95 tion of the ligand radical in 3-Cp* and 3-(t)Bu by Ag(I) forms cationic uranium(VI) [Cp*U(NTol)2((Mes

96 Treating 3 or 3-(t)Bu with stoichiometric equivalents of Me3SiI results in

97 e)) (3) and Cp*UO2((t)Bu-(Mes)PDI(Me)) (3-(t)Bu) (Cp* = 1,2,3,4,5-pentamethylcyclopentadienide; (Mes)

98 logue, Cp*U(NTol)2((t)Bu-(Mes)PDI(Me)) (3-(t)Bu), displays the same electronic structure.

99 tructural parameters of 1-Cp(P), 3-Cp*, 3-(t)Bu, 4-Cp*, 4-(t)Bu, and 5-Cp* have been elucidated by X-

100 Cp*U(NTol)2((t)Bu-(Mes)PDI(Me))][SbF6] (4-(t)Bu), respectively, as confirmed by metrical parameters.

101 reviously reported ((Ar)L)FeCl((*)NC6H4-4-(t)Bu), the monomeric iron imido is best described as a hig

102 eaction of 3 equiv of Li-C6H3-2,6-(C6H4-4-(t)Bu)2 (Terph-Li) with UI3(1,4-dioxane)1.5 led to the form

103 ters of 1-Cp(P), 3-Cp*, 3-(t)Bu, 4-Cp*, 4-(t)Bu, and 5-Cp* have been elucidated by X-ray crystallogra

104 (5) or (Me3SiO)UI2((t)Bu-(Mes)PDI(Me)) (5-(t)Bu), respectively.

105 t a two-coordinate gold complex (NON)AlAuP(t)Bu(3) (where NON is the chelating tridentate ligand 4,5-

106 In contrast, the homogeneous analogue (t)Bu(L-PdTFA) is an ineffective catalyst owing to decompos

107 4], with Cp(ttt) = {C5H2(t)Bu3-1,2,4} and (t)Bu = C(CH3)3-which exhibits magnetic hysteresis at tempe

108 multaneous deprotections with the Boc and (t)Bu groups.

109 hane)(NEt(2)))(4)] (where Et is ethyl and (t)Bu is tert-butyl).

110 protecting groups, namely, Ts, Fmoc, and (t)Bu, can be easily removed selectively.

111 NP*, deprotonated (t)Bu-PNP ligand) and [((t)Bu-PNP)Ir(H)] (3) react with CO2 to give the dearomatize

112 ]N)3VN-PC2(SiMe3)2 (7) or phosphirane (Ar[(t)Bu]N)3VN-P(C8H16) (8) compounds are generated.

113 -4-octene, the respective phosphirene (Ar[(t)Bu]N)3VN-PC2(SiMe3)2 (7) or phosphirane (Ar[(t)Bu]N)3VN-

114 t-butylethylene, dissociate to ArSnCH2CH2(t)Bu monomers in solution.

115 onded insertion products (NON)Al(X(2)C)AuP(t)Bu(3) (X = N(i)Pr, 4; X = O, 5).

116 ior in the ground state of [Tb(NP(1,2-bis-(t)Bu-diamidoethane)(NEt(2)))(4)] (measured by Tb L(3)-edge

117 travalent terbium complex, [Tb(NP(1,2-bis-(t)Bu-diamidoethane)(NEt(2)))(4)] (where Et is ethyl and (t

118 e a 4f(7) ground state for [Tb(NP(1,2-bis-(t)Bu-diamidoethane)(NEt(2)))(4)] with considerable zero-fi

119 bium precursor, [(Et(2)O)K][Tb(NP(1,2-bis-(t)Bu-diamidoethane)(NEt(2)))(4)].

120 racterization of Cp(2)Ti(kappa(2)-(t)BuNCN(t)Bu) (3) (Cp = cyclopentadienyl, (t)Bu = tert-butyl), a s

121 alkyl aryl ethers R-OAr employing (t)BuOO(t)Bu as oxidant with copper(I) beta-diketiminato catalysts

122 ucts R-C=CR via radical relay with (t)BuOO(t)Bu as oxidant.

123 ated upon reaction of [Cu(I)] with (t)BuOO(t)Bu.

124 Using rhodium catalysts modified by (t)Bu(2)PMe, sodium formate-mediated reductive coupling of

125 ising from the in situ reaction of the W=C(t)Bu functionality with the coordinated water coming from

126 anes based on inorganic [Cr(7)NiF(8)(O(2)C(t)Bu)(16)](-) ("{Cr(7)Ni}") rings templated about organic

127 -CH(2)NH(2)(CH(2))(4)Ph][Cr(7)NiF(8)(O(2)C(t)Bu)(16)])(2)}, and {[Cu(hfac)(2)]([3-py-CH(2)CH(2)NH(2)(

128 2)NH(2)(CH(2))(3)SCH(3)][Cr(7)NiF(8)(O(2)C(t)Bu)(16)])(2)}, the structures of which have been determi

129 H(2)CH(2)C(6)H(4)SCH(3)][Cr(7)NiF(8)(O(2)C(t)Bu)(16)])(2)}, {[Cu(hfac)(2)]([py-C(6)H(4)-CH(2)NH(2)(CH

130 (2)C(t)Bu)(6)(THF)]{(BH)[Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}(2) (4), where B = py-CH(2)CH(2)NHCH(2)C(6)H(4)

131 (F)(O(2)C(t)Bu)(6)]{(BH)[Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}(3) (3) and [CrNi(2)(F)(O(2)C(t)Bu)(6)(THF)]{(B

132 py-CH(2)NH(2)CH(2)CH(3)][Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}, {[Cu(hfac)(2)]([py-CH(2)CH(2)NH(2)CH(2)C(6)H(

133 -CH(2)NH(2)CH(2)CH(2)Ph)[Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}, {[Cu(hfac)(2)][py-CH(2)NH(2)CH(2)CH(3)][Cr(7)

134 C(t)Bu)(16)]}(3) (3) and [CrNi(2)(F)(O(2)C(t)Bu)(6)(THF)]{(BH)[Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}(2) (4),

135 on and have the formulas [CrNi(2)(F)(O(2)C(t)Bu)(6)]{(BH)[Cr(7)NiF(8)(O(2)C(t)Bu)(16)]}(3) (3) and [C

136 d alkynylgold(III) complex, [Au((t)BuC^N^C(t)Bu)(C identical withC-C6H4N(C6H5)2-p)] ((t)BuHC^N^CH(t)B

137 the first step by step anchoring of a W(=C(t)Bu)(CH(2)(t)Bu)(3) complex on a highly crystalline and m

138 tical withC-C6H4N(C6H5)2-p)] ((t)BuHC^N^CH(t)Bu = 2,6-bis(4-tert-butylphenyl)pyridine), has been synt

139 ned with the alkylidene complex (PNP)Ti=CH(t)Bu(CH3) (PNP=N[2-P(CHMe2)2-4-methylphenyl]2(-)), catalys

140 iginal alkane elimination route from Ta(CH(t)Bu)(CH(2)(t)Bu)(3) and Cp*IrH(4).

141 )Bu) or (PNP)Ti horizontal lineCH(t)Bu(CH2(t)Bu) (PNP(-) = N[2-P(CHMe2)2-4-methylphenyl]2) reacts wit

142 (PNP)Ti(eta(2)-H2C horizontal lineCH2)(CH2(t)Bu) or (PNP)Ti horizontal lineCH(t)Bu(CH2(t)Bu) (PNP(-)

143 alkyl species ( identical withSiO-)MoO(CH2(t)Bu)3 was selectively prepared by grafting of MoO(CH2(t)B

144 electively prepared by grafting of MoO(CH2(t)Bu)3Cl onto partially dehydroxylated silica (silica700)

145 The bulkier distannenes [ArSn(CH2CH2(t)Bu)]2 (Ar = Ar((i)Pr6) (5a) or Ar((i)Pr4) (5b)), obtaine

146 rido bridged Ar((i)Pr4)S n(mu-H)S n(CH2CH2(t)Bu)Ar((i)Pr4) (6b).

147 as the structure Ar((i)Pr6)Sn-Sn(H)(CH2CH2(t)Bu)Ar((i)Pr6) (6a) or the monohydrido bridged Ar((i)Pr4)

148 Co complex (THF)Zr(MesNP (i)Pr(2))(3)CoCN (t)Bu (1) reacts readily with O(2) and O atom transfer reag

149 omplexes, (O(2))Zr(MesNP (i)Pr(2))(3)CoCN (t)Bu (2) and O=Zr(MesNP (i)Pr(2))(3)CoCN (t)Bu (3).

150 (t)Bu (2) and O=Zr(MesNP (i)Pr(2))(3)CoCN (t)Bu (3).

151 th CO2 to give the dearomatized complex [((t)Bu-PNP*)Ir(CO)] (4) and water.

152 The novel Ir hydride complexes [((t)Bu-PNP*)Ir(H)2] (2) ((t)Bu-PNP*, deprotonated (t)Bu-PNP

153 t)Bu(3))(4)][B(C(6)F(5))(4)] (M = Ni, Cu; (t)Bu = tert-butyl), which feature low-coordinate metal cen

154 t)BuNCN(t)Bu) (3) (Cp = cyclopentadienyl, (t)Bu = tert-butyl), a strained 4-membered metallacycle bea

155 NP*)Ir(H)2] (2) ((t)Bu-PNP*, deprotonated (t)Bu-PNP ligand) and [((t)Bu-PNP)Ir(H)] (3) react with CO2

156 nylporphyrin (TPP)) and 1(P2) (P2 = 3,5-Di(t)Bu-ChenPhyrin) with organic azides 2(Ns) (NsN3), 2(Ts) (

157 D2-symmetric chiral amidoporphyrin 3,5-Di(t)Bu-QingPhyrin has been identified as an effective metall

158 f D2-symmetric chiral porphyrin [Co(3,5-Di(t)Bu-Xu(2'-Naph)Phyrin)] is an efficient metalloradical ca

159 lated at 300 degrees C (SZO(300)) forms [((t)Bu)(2)ArPH][SZO(300)] (2a-h).

160 the substrate which reacts rapidly with HO(t)Bu (2-methylpropan-2-ol) to produce the amine.

161 dependency of the reaction rate on the HO(t)Bu concentration, no observable manganese amide complex,

162 OO)Ir(H)2] (5), and a di-CO2 iridacycle [((t)Bu-PNP)Ir(H)(C2O4-kappaC,O)] (6).

163 is used in place of Ni(COD)2/SIPr.HBF4/KO(t)Bu (COD = 1,5-cyclooctadiene) as a more robust catalyst

164 The reaction utilizes KO(t)Bu as an initiator and likely proceeds by a radical anio

165 in good to excellent yields using only KO(t)Bu in dimethyl sulfoxide (DMSO) at rt.

166 y reaction of the corresponding HE with KO(t)Bu in DMSO at rt.

167 Although catalytic KO(t)Bu in DMSO is sufficient to allow imine generation, stoi

168 We also present reasons why KO(t)Bu is an active catalyst whereas sodium tert-butoxide an

169 allow imine generation, stoichiometric KO(t)Bu is essential in THF.

170 The unique role of KO(t)Bu is traced, in part, to the stabilization of crucial i

171 n of unactivated arenes with ArX, base (KO(t)Bu or NaO(t)Bu), and an organic additive at high tempera

172 Tf = CF3SO3) undergo deprotonation with KO(t)Bu to afford the trans-halide-alkylidyne square-planar d

173 eutral heterolytic route involving the [KO(t)Bu]4 tetramer.

174 as a directing metalation group via N...Li(t)Bu coordination.

175 cle, the organolithiums [((-)-sparteine)Li(t)Bu] (1), [(ABCO)Li(t)Bu](2) (2), and [(ABCO)(2)(Li(i)Pr)

176 ms [((-)-sparteine)Li(t)Bu] (1), [(ABCO)Li(t)Bu](2) (2), and [(ABCO)(2)(Li(i)Pr)(4)] (3) are investig

177 H2)(CH2(t)Bu) or (PNP)Ti horizontal lineCH(t)Bu(CH2(t)Bu) (PNP(-) = N[2-P(CHMe2)2-4-methylphenyl]2) r

178 reaction between benzyldiboronate and LiO(t)Bu in THF at 23 degrees C allowed for the identification

179 for X = OMe, NMe(2) (data for X = H, Me, (t)Bu are intermediate between the extremes).

180 para substituent NO(2), CF(3), Cl, H, Me, (t)Bu, OMe, or NMe(2)) at low temperatures were studied.

181 -C(6)H(3)-5-R'-(C(O)PMe)}(2) (R' = I, Me, (t)Bu, Ph, and p-NCC(6)H(4)); the analogues m-{-C(O)-C(5)H(

182 mplexes ((R)dmx)Cu(2)(mu(2)-NAr) (R: Mes, (t)Bu; Ar: 4-MeOC(6)H(4), 3,5-(F(3)C)(2)C(6)H(3)) were synt

183 h CO2 is bound to the ligand and metal, [((t)Bu-PNP-COO)Ir(H)2] (5), and a di-CO2 iridacycle [((t)Bu-

184 t = 9,9-dimethyl-xanthene-4,5-diyl; PhC(N (t)Bu)2] and (LSi:)(2)Fc 1b (Fc = 1,1'-ferrocenyl) as four-

185 phosphazanes of the type [(RNH)(E)P(mu-N (t)Bu)](2) (E = O, S, Se) which are bench-stable, H-bond re

186 Pd-Ti distance in 1 is the result of the N(t)Bu groups enforcing a boat conformation that brings the

187 an isoelectronic [LSi] fragment (L = PhC(N(t)Bu)(2)) leads to [(eta(4)-P(4)SiL)FeCp*] and [LSi(Cl)=P-

188 the phosph(III)azane dimer [(2-py)NHP(mu-N(t)Bu)](2) not only activates the receptor for anion bindin

189 atomic molecule PN, P identical withN-V(N[(t)Bu]Ar)3 (1, Ar = 3,5-Me2C6H3), we report the use of ClPA

190 i-1,8-naphthalene disulfide), NapS2P-NV(N[(t)Bu]Ar)3 (6) is instead generated in 80% yield, suggestin

191 hosphorus(I) in its reaction with Na[NV(N[(t)Bu]Ar)3] (Na[4]) to yield trimeric cyclo-triphosphane [P

192 , 3 readily fragments into dimeric [PNV(N[(t)Bu]Ar)3]2 (2), while in the presence of bis(trimethylsil

193 yield trimeric cyclo-triphosphane [PNV(N[(t)Bu]Ar)3]3 (3) with a core composed exclusively of phosph

194 ated arenes with ArX, base (KO(t)Bu or NaO(t)Bu), and an organic additive at high temperatures.

195 )Ni(II)(S)] (L(tBu) = {(2,6-(i)Pr2C6H3)NC((t)Bu)}2CH), with the biologically important small molecule

196 The resulting complex, (OIM)Mn(NH (t)Bu), reacts via proton-coupled electron transfer (PCET)

197 transition-metal cluster compounds M(4)(NP(t)Bu(3))(4) and [M(4)(NP(t)Bu(3))(4)][B(C(6)F(5))(4)] (M =

198 The [Ni(4)(NP(t)Bu(3))(4)](+) cluster is also the first molecule with ea

199 The S = (1)/(2) complex [Cu(4)(NP(t)Bu(3))(4)](+) exhibits slow magnetic relaxation via a Ra

200 large-spin ground states in the [Ni(4)(NP(t)Bu(3))(4)](+/0) clusters and fully delocalized, spin-cor

201 compounds M(4)(NP(t)Bu(3))(4) and [M(4)(NP(t)Bu(3))(4)][B(C(6)F(5))(4)] (M = Ni, Cu; (t)Bu = tert-but

202 lene(2-) reduction product [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-CH(2)O)(mu-O)}], 4, that can further a

203 -formate carbonate complex [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-CO(3))(mu-HCOO)(2)}], 6, could also be

204 ranium(IV) hydride complex [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-O)(mu-H)(2)}], 2, which displays high

205 hydride transfer to yield [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-O)(mu-kappa(2)-NC(CH(3))NCH(2)CH(3))}]

206 methoxide hydride complex [K(2){[U(OSi(O (t)Bu)(3))(3)](2)(mu-OCH(3))(mu-O)(mu-H)}], 5, from which m

207 xide)terbium(III) ate complex, [KTb(OSi(O (t)Bu)(3))(4)], 1-Tb, with the tris(4-bromophenyl)amminium

208 ], to afford the Tb(4+) complex [Tb(OSi(O (t)Bu)(3))(4)], 2-Tb.

209 ns between copper(II) alkoxides [Cu(II)]-O(t)Bu and B(C6F5)3.

210 ansesterification of AcOAr with [Cu(II)]-O(t)Bu intermediates generated upon reaction of [Cu(I)] with

211 versible alpha-deprotonation by a Cu(II)-O(t)Bu species followed by further oxidation of the resultin

212 face of Pd/H(y)WO(3-x) by anchoring Cu(I)O(t)Bu to the Bronsted acidic protons of the bronze.

213 that the terminal nitride [NBu(4)][U(OSi(O(t)Bu)(3))(4)(N)], 3, can be prepared upon photolysis with

214 OSi(O(t)Bu)3)3.L with L = (THF)2 or HOSi(O(t)Bu)3 for M = Cr, Yb, Eu, and Y, by a combination of adva

215 amides M(N(SiMe3)2)3 vs siloxides (M(OSi(O(t)Bu)3)3.L with L = (THF)2 or HOSi(O(t)Bu)3 for M = Cr, Yb

216 opper(II) tert-butoxide complex [Cu(II)]-O(t)Bu.

217 re heterometallic octanuclear [Cr7NiF8(O2C(t)Bu)16](-) coordination cages and the thread components t

218 lt(II) bis(pivalate) 4-Me-((iPr)PNP)Co(O2C(t)Bu)2 (2) compounds were effective and exhibited broad fu

219 The reaction of ((t)Bu)(2)ArP (1a-h), where the para position of the Ar grou

220 o SZO(300) are related to the p K(a) of [((t)Bu)(2)ArPH]; R(3)P that form less acidic phosphoniums (h

221 -inspired [Ru(bpy)2(phen-imidazole-Ph(OH)((t)Bu)2)](2+), in which Ru(III) generated by a flash-quench

222 [((tBu)4)(POCOP) = kappa(3)-C6H3-2,6-(OP((t)Bu)2)2] complexes results in observation of two new irid

223 ic pincer ligands bearing either CF(3) or (t)Bu moieties on the triazole rings along with triphenylpn

224 dentate ancillary ligands ([CF(3)/Pn] or [(t)Bu/Pn], respectively) have been investigated.

225 Rhodium complexes modified by P (t)Bu(2)Me catalyze formate-mediated aldehyde-vinyl bromide

226 native than the experimentally reported P (t)Bu(3) ligand exhibiting a clear preference for C-H activ

227 catalysts, Pd(dba)(2)/BrettPhos and Pd(P (t)Bu(3))(2), are demonstrated and provide a variety of dif

228 metry had been considered(12,13) for [Ni(P(t)Bu)(6)]; however, an analysis of the molecular orbitals

229 ido-4-(tert-butyl)benzene N(3)(C(6)H(4)-p-(t)Bu) furnished the corresponding four-coordinate organoaz

230 ed iminyl radical ((Ar)L)FeCl((*)N(C6H4-p-(t)Bu)) (2) with potassium graphite furnished the correspon

231 spin (S = (5)/2) imido ((Ar)L)Fe(N(C6H4-p-(t)Bu)) (3) ((Ar)L = 5-mesityl-1,9-(2,4,6-Ph3C6H2)dipyrrin)

232 or Co(IV) imido ((Ar)L)CoBr(N(C(6)H(4)-p-(t)Bu)) complex.

233 o(III) iminyl ((Ar)L)CoBr((*)N(C(6)H(4)-p-(t)Bu)) or Co(IV) imido ((Ar)L)CoBr(N(C(6)H(4)-p-(t)Bu)) co

234 Unlike ((Ar)L)CoBr(N(3)(C(6)H(4)-p-(t)Bu)), a series of alkyl azide-bound Co(II) analogues exp

235 bound complex ((Ar)L)CoBr(N(3)(C(6)H(4)-p-(t)Bu)).

236 lohexyl) and Au28(SPh-(t)Bu)20 (where -Ph-(t)Bu = 4-tert-butylphenyl).

237 h dialkylhalophosphines R2PCl (Cy, (i)Pr, (t)Bu) at ambient temperature yield the first tetrel Zintl

238 ve eta(1),eta(2)-diimine complexes 2 (R = (t)Bu) and 3 (R = 1-adamantyl).

239 acemic-tert-butyl 3,4-epoxybutanoate (rac-(t)Bu 3,4-EB) and CO2 using bifunctional cobalt(III) salen

240 nd essentially supported by the upper-rim (t)Bu groups of the ((t.Bu)ArO)(3)tacn(3-) ligand.

241 es, M(24)((t)Bu-bdc)(24) (M = Cr, Mo, Ru; (t)Bu-bdc(2-) = 5-tert-butylisophthalate), for high-pressur

242 where -c-C6H11 = cyclohexyl) and Au28(SPh-(t)Bu)20 (where -Ph-(t)Bu = 4-tert-butylphenyl).

243 ing effect of the peripheral substituent ((t)Bu vs. CF(3), respectively) and its influence on the bon

244 e (i)Pr group are similar to those of the (t)Bu substituent.

245 iplet, V(3+) complex, (C(6)F(5))(3)trenVCN(t)Bu (1).

246 5-pentamethylcyclopentadienide), and Cp*U((t)Bu-(Mes)PDI(Me)) (THF) (1-(t)Bu) (2,6-((Mes)N horizontal

247 *U((Mes)PDI(Me))(HMPA) (1-HMPA), and Cp*U((t)Bu-(Mes)PDI(Me))(THF) (1-(t)Bu).

248 SiO)2UI2((Mes)PDI(Me)) (5) or (Me3SiO)UI2((t)Bu-(Mes)PDI(Me)) (5-(t)Bu), respectively.

249 unds, Cp*UO2((Mes)PDI(Me)) (3) and Cp*UO2((t)Bu-(Mes)PDI(Me)) (3-(t)Bu) (Cp* = 1,2,3,4,5-pentamethylc

250 um aluminyl compound [K{Al(NON)}](2) with (t)Bu(3)PAuI.

251 en alkylidyne [(t)BuOCO]W identical withC((t)Bu) (THF)2 (1) reacts with CO2, leading to complete clea

252 termediates, [Fp(t-BuPA)][BF(4)] and [Fp(1-t-Bu)][BF(4)], were prepared independently and structurall

253 rans-1-R-2-phenylphosphiranes (R = t-Bu: 1-t-Bu; i-Pr: 1-i-Pr) from the corresponding dibenzo-7-(R)-7

254 Alk; Alk = n-Bu, PhCH(2), cyclo-C(6)H(11), t-Bu, cyclopropylmethyl) bearing a bulky bidentate 2-[bis(

255 1 with P(t-Bu)3 affords the zwitterion 3-(t-Bu)3PC14H7O2B(C6F5)2 (5) in addition to the salt [HP(t-B

256 , t-Bu/Se (9)] or III [R/X = Ph/BH(3) (4), t-Bu/BH(3) (5), t-Bu/lone pair (10)].

257 Phosphazene superbase P(4)- t-Bu mediated iodoaminocyclization of 2-(1-alkynyl)benzami

258 r III [R/X = Ph/BH(3) (4), t-Bu/BH(3) (5), t-Bu/lone pair (10)].

259 BINOL-phosphoramidite and a BINAP-bis(3,5-t-Bu-aryl)phosphine, are addressed through exhaustive conf

260 rocenyl, Ph, Cy, t-Bu, Mes* (Mes* = 2,4,6-(t-Bu)(3)C(6)H(2))), followed by treatment with aqueous NH(

261 tion state V [R/X = t-Bu/O (6), Ph/S, (7), t-Bu/S (8), t-Bu/Se (9)] or III [R/X = Ph/BH(3) (4), t-Bu/

262 [R/X = t-Bu/O (6), Ph/S, (7), t-Bu/S (8), t-Bu/Se (9)] or III [R/X = Ph/BH(3) (4), t-Bu/BH(3) (5), t

263 yield 3-(R2PH)C16H7O2B(C6F5)2 (R = Ph (9), t-Bu (10)).

264 zines employing Cs(2)CO(3) as the base and t-Bu(3)PHBF(4) as the ligand in DMSO at 120 degrees C in a

265 H2C horizontal lineC horizontal lineCH(COO-t-Bu) with enynal undergoes decarboxylation under the [Au]

266 fficient alternatives to the corresponding t-Bu-PHOX systems.

267 ucleophiles LiPHR (R = ferrocenyl, Ph, Cy, t-Bu, Mes* (Mes* = 2,4,6-(t-Bu)(3)C(6)H(2))), followed by

268 lexes [RuHClPNP (R)(CO)] (R = Ph/ i-Pr/Cy/ t-Bu) for both amine formylation and formamide hydrogenati

269 the intermediacy of iron-phosphido FpP(F)(t-Bu) (2), generated independently from the stoichiometric

270 labeled ADM analogues synthesized by Fmoc/t-Bu solid phase peptide synthesis were used to analyze th

271 l amino acid side-chain-protecting groups, t-Bu, Boc, Trt, and Pbf, and the formation of aspartimide

272 horizontal lineO > dicyclopropyl ketone > t-Bu-C( horizontal lineO)-Ph > diisopropyl ketone >> t-Bu2

273 of cyclopropanecarbaldehyde > acetone >/= t-Bu-CH horizontal lineO.

274 O2B(C6F5)2 (5) in addition to the salt [HP(t-Bu)3][C14H8O2B(C6F5)2] (6).

275 The solution basicity of the well-known t-Bu-N horizontal lineP4(dma)9 phosphazene superbase is no

276 previously studied the photophysics of Ni((t-Bu)bpy)(o-Tol)Cl, which is representative of proposed in

277 [Ar2N3]Mo(N)(O-t-Bu) serves as a catalyst or precursor for the catalytic

278 [Ar2N3]Mo(N)(O-t-Bu), which contains the conformationally rigid pyridine-

279 Reaction of 1 with P(t-Bu)3 affords the zwitterion 3-(t-Bu)3PC14H7O2B(C6F5)2 (5

280 known phosphine electron donors such as P(t-Bu)3 and PCy3.

281 formula Mo(NR)(CHR')(OR'')(Cl)(MeCN) (R = t-Bu or 1-adamantyl; OR'' = a 2,6-terphenoxide) recently h

282 For the more stable silanone 2b (R = t-Bu), a selective transformation to the first reported ro

283 ion of trans-1-R-2-phenylphosphiranes (R = t-Bu: 1-t-Bu; i-Pr: 1-i-Pr) from the corresponding dibenzo

284 With (S)-t-Bu-PyOX as the chiral ligand, this method delivers a var

285 In the case of the t-Bu derivative, the reaction mechanism was probed using s

286 ly depends on the steric protection by the t-Bu groups since an analogous derivative with R = Ph is o

287 can be reversibly protonated to yield the [t-Bu(2)PHC(S)SCH(Me)Ph](+) cation (10-H(+)), which was iso

288 tom either in the oxidation state V [R/X = t-Bu/O (6), Ph/S, (7), t-Bu/S (8), t-Bu/Se (9)] or III [R/

289 ted by the upper-rim (t)Bu groups of the ((t.Bu)ArO)(3)tacn(3-) ligand.

290 -H, C metal-alkane interactions in the [(((t.Bu)ArO)(3)tacn)U(III)((Me)cy-C6)].((Me)cy-C6) adduct.

291 duced that metal-ligand bonding in the [(((t.Bu)ArO)(3)tacn)U(III)] moiety is predominantly ionic.

292 The bonding interaction within the [(((t.Bu)ArO)(3)tacn)U(III)] moiety is shown to be dispersive

293 as Walk/Run, Bike, Train/Subway or Car/Taxi/Bus.

294 The superbase tert-Bu-P4 is found to directly initiate this polymerization

295 n combined with a suitable alcohol, the tert-Bu-P4 -based system rapidly converts gamma-BL into polye

296 ))2 (R = Bu(t), Mes, Ph, or Pr(i)), only the Bu(t) analogue does both H2 activation and H2-D2 exchang

297 Photophysical studies reveal that the Bu(3)Sn-substituted PAHs are moderately fluorescent, and

298 on-based study of former participants of the Bus Sante study and their household members.

299 for cyclization onto the C6 position, using Bu(3)SnH-mediated radical cyclization or NHC-catalyzed S

300 cetals, the iodofulvenes were metalated with Bu(3)MgLi at -100 degrees C and reacted with dimethylfor