ライフサイエンスコーパス: butene

1 as a [2 + 1] cycloadduct with 2,3-dimethyl-2-butene.

2 s the major product via the enol 2-hydroxy-2-butene.

3 ene, 1-methylcyclohexene, and 2,3-dimethyl-2-butene.

4 e of the largest adsorbate considered, cis-2-butene.

5 sed allylic hydroxylation of cyclohexene and butene.

6 oute to access value-added products, such as butene.

7 d typically inert Z-1,1,1,4,4,4-hexafluoro-2-butene.

8 8000 for the hydrogenation of 2,3-dimethyl-2-butene.

9 ylation was also observed on propylene and 1-butene.

10 yclohexene, alpha-pinene, and 2,3-dimethyl-2-butene.

11 ethylene dimerization to selectively form 1-butene.

12 Epoxide 2 was prepared from 3,4-dichloro-1-butene (1) by epoxidation with m-CPBA and subsequent deh

13 selective cross-metathesis of ethylene and 2-butenes(1) offers an appealing route for the on-purpose

14 yl-1-butene, cis/trans-2-pentene, 2-methyl-2-butene, 1-butene, and 1-pentene) had low potencies (<5),

15 (alkene = ethylene, propene, 1-butene, cis-2-butene, 1-hexene, 1-octene, and 1-decene), has been prep

16 from ozonolysis of asymmetrical 1-alkenes (1-butene, 1-pentene, 1-hexene, and 1-heptene) were investi

17 lmethyl)-N'-(5,6,7,8-tetrahydroquinolin-8-yl)butene-1, 4-diamine (AMD11070).

18 suggested that most adducts resulted from 3-butene-1,2-diol metabolism to 3,4-epoxy-1,2-butanediol,

19 butadiene is primarily metabolized via the 3-butene-1,2-diol pathway, but that mice are much more eff

20 fied the alpha,beta-unsaturated dialdehyde 2-butene-1,4-dial (BDA) and its chlorinated analogue, chlo

21 (BDA) and its chlorinated analogue, chloro-2-butene-1,4-dial (Cl-BDA), after the chlorination of phen

22 o commercially available cis alkenes, (2Z)-2-butene-1,4-diol and 2,5-dihydrofuran, could be employed

23 ative coupling of aromatic amines with cis-2-butene-1,4-diol and 2-butyne-1,4-diol, respectively.

24 This Ru(IV) allyl catalyst enchains 2-butene-1,4-diol primarily as the linear trans-2-butenyl

25 nonfaradaic reaction, H(2) addition to cis-2-butene-1,4-diol to form n-butanol and 1,4-butanediol, to

26 The catalytic condensation of cis-2-butene-1,4-diol with CpRu(MQA)(C(3)H(5)) (Cp = cyclopent

27 n A, has been readily synthesized from cis-2-butene-1,4-diol.

28 t isomerization) and hydroxylation to give 2-butene-1-ol were all significantly decreased by the 2B4

29 roma activity: dimethyl sulphide, 3-methyl-2-butene-1-thiol, 2-methyl-3-furanthiol, dimethyl trisulph

30 mol at QCISD(T)// QCISD/6-31+G(d,p)] and E-2-butene [14.3 and 13.2 kcal/mol at QCISD(T)/6-31G(d)//B3L

31 ed Grignard reagents to 2-chloro-3,4-epoxy-1-butene (2) afforded (Z)-3-chloroallylic alcohols such as

32 -2-butyn-1-amine (1), 1,4-diamino-2-chloro-2-butene (2), 1,6-diamino-2,4-hexadiyne (3), and 2-chloro-

33 ne (7.0) approximately alpha-olefins > cis-2-butene (2.2) > trans-2-butene (<0.1).

34 cts with benzene, mesitylene, 3,3-dimethyl-1-butene, 2-methoxy-2-methylpropane, 2-butyne, acetone, pe

35 recursors with a single C=C bond (3-methyl-1-butene, 2-methyl-1-butene, cis/trans-2-pentene, 2-methyl

36 tion of Th.+ClO4(-) to five trans alkenes (2-butene, 2-pentene, 4-methyl-2-pentene, 3-octene, 5-decen

37 an olefin metathesis to yield bisphenols and butene-2, thus, valorizing all bio-based carbons.

38 ecent yields by condensing readily available butene-2,3-diyl-bisthiophene-2,5-diyl-bis(p-methoxypheny

39 xAc), cis-3-hexen-1-ol (HxO), and 2-methyl-3-butene-2-ol (MBO).

40 The 1-butene hydride complex, (N/\N)Pt(H)(1-butene)+ (3), is a key intermediate in the dimerization

41 y loss of the H by 27.8 kJ/mol in 2-methyl-1-butene-3-yne, by 36.8 kJ/mol in isoprene, by 55.9 kJ/mol

42 s(2-methoxyethyl)aminomethyldimethylsilyl]-2-butene 5, and using only modeling, 1,4-dilithio-2-butene

43 ively, and related affinities for 2-methyl-1-butene (5) and 2-methyl-2-butene (6) using G3MP2B3 and C

44 ies for 2-methyl-1-butene (5) and 2-methyl-2-butene (6) using G3MP2B3 and CBS-QB3 protocols.

45 reparation of (Z)-4-(benzoyloxy)-1-hydroxy-2-butene, 7, a key intermediate for the synthesis of unsat

46 action enthalpies of methylpropene (6) and 2-butene (8), yielding 1 and 4, respectively.

47 Production of 1-butene, a major monomer in polymer industry, is dominate

48 ,4-dibromo-2-butene yields 3-alkyl-4-bromo-1-butene, a product of S(N)2' substitution.

49 he active site significantly increases the 1-butene adsorption enthalpy and almost doubles the cataly

50 Selectivity for 1-butene adsorption under multicomponent conditions is dem

51 ate linearly with the Gibbs free energy of 1-butene adsorption.

52 onosubstituted olefins and Z- or E-2-bromo-2-butene, affording an assortment of E- or Z-trisubstitute

53 Isobutane-isobutylene or 2-butene alkylation gave excellent yields of high octane a

54 thylene, we explored routes to dimerize to 1-butene, an olefin that can serve as a building block to

55 = P, As, Sb, and Bi) yielding triaza-pnicta-butene analogues of the type R-N horizontal lineN-N(R)-E

56 brated with pure standards of 2,3-dimethyl-1-butene and 2, 3-dimethyl-2-butene in the gas phase and m

57 e much more reactive than unstrained trans-2-butene and 2-butyne, because they are predistorted towar

58 tituted terminal olefins, such as 2-methyl-1-butene and beta-pinene, when compared to simple terminal

59 gas stream composed of equimolar amounts of butene and carbon dioxide.

60 this host can bind guests such as 2-methyl-2-butene and cumene to form stable solid host-guest comple

61 nd enthalpies for DMC additions to 2-ethyl-1-butene and methyl acrylate are computed and observed to

62 sample of n-butylated h-SWNTs showed that 1-butene and n-butane are formed during thermolysis.

63 step 2a, allylic alkylation occurs to give 1-butene and reform metal acetate, [(phen)M(O2CCH3)](+), w

64 1-Butene and the higher 1-n-alkenes from all the catalysts

65 is of allyl benzene with cis-1,4-diacetoxy-2-butene and the macrocyclic ring-closing of a 14-membered

66 framework Zn-OH and Bronsted acidic sites to butene and then to aromatic compounds has thus been demo

67 u or Ph) show activity for the production of butenes and higher olefins.

68 on of various halogenated ethenes, propenes, butenes and nonhalogenated cis-2-pentene, an isomeric mi

69 noethoxy)phenyl]-1-(4-iodophenyl)-2-phenyl-1-butene ] and selected homologs of 4-iodotamoxifen [2a,(E

70 dimerization with high selectivity (> 99% 1-butene) and high stability (> 120 h) in the absence of a

71 lusters with alkenes (ethylene, propylene, 1-butene, and 1,3-butadiene) are investigated by experimen

72 (2)=CHP(Cy)(3))](+) BF(4)(-) with propene, 1-butene, and 1-hexene at -45 degrees C affords various su

73 e, cis/trans-2-pentene, 2-methyl-2-butene, 1-butene, and 1-pentene) had low potencies (<5), whereas l

74 NMR spectroscopy, a mixture of propylene, 1-butene, and 2-butenes is formed.

75 a) and isobutene, 2-methylbutene, 2-methyl-2-butene, and 2-methylpentene decompose spontaneously in a

76 ma-sultambenzosulfonamide, aminocarbonitrile butene, and 4-isoxazolamide chemical classes.

77 idize toluene, chlorobenzene, 3,4-dichloro-1-butene, and indole.

78 ound species derived from ethene, propene, n-butene, and isobutene on solid acids with diverse streng

79 o those for an acyclic model compound, cis-2-butene, and provide the needed information to experiment

80 : 8-(3-chlorostyryl)caffeine, 1,4-diphenyl-2-butene, and trans,trans-farnesol are shown to inhibit co

81 e the adsorption behavior of 1-butene, cis-2-butene, and trans-2-butene in the metal-organic framewor

82 fmann elimination of [Bu4N]+ to give Bu3N, 1-butene, and water.

83 ds that could be trapped with 2,3-dimethyl-2-butene as [2+1] cycloaddition products.

84 t between polymers and the Z-1,4-diacetoxy-2-butene as a chain transfer agent in dichloromethane usin

85 aphthalene in the presence of 2,3-dimethyl-2-butene as a trap for liberated MeTAD.

86 ne, acetylene, propane, propylene, and cis-2-butene at ambient temperature.

87 ene reaction of formaldehyde with 2-methyl-2-butene at natural abundance catalyzed by diethylaluminum

88 nd terminal alkenes (ethylene, propene and 1-butene), but not bulkier alkenes such as 2-butene or cyc

89 cals such as 1,3-butadiene, isobutene, and 1-butene, but the very similar physical properties of thes

90 oposed in the literature, many of which have butenes, butadiene, and furan as reaction intermediates.

91 2-dichloroethylene (1,2-DCE) (C2H2Cl2) and 2-butene (C4H8).

92 le test reactions as ethene hydrogenation, 2-butene cis-trans isomerization and H(2)/D(2) scrambling

93 The alkenes used were cis- and trans-2-butene, cis- and trans-2-pentene, cis- and trans-4-methy

94 h(3))(alkene) (alkene = ethylene, propene, 1-butene, cis-2-butene, 1-hexene, 1-octene, and 1-decene),

95 ere, we examine the adsorption behavior of 1-butene, cis-2-butene, and trans-2-butene in the metal-or

96 HFO-1336mzz(Z) ((Z)-1,1,1,4,4,4-hexafluoro-2-butene, cis-CF(3)CH=CHCF(3)), a newly used unsaturated h

97 ngle C=C bond (3-methyl-1-butene, 2-methyl-1-butene, cis/trans-2-pentene, 2-methyl-2-butene, 1-butene

98 opposite faces of the near coplanar of the 2-butene component.

99 ion of the reduced product-2,4,4-trifluoro-1-butene-demonstrating the Ni-catalyzed hydrodefluorodimer

100 alts, a single positional isomerization of 1-butene derivatives furnishes 2-alkenes with exceptional

101 almost doubles the catalytic activity for 1-butene dimerization in comparison to the presence of wat

102 of the metal site as the active center for 1-butene dimerization.

103 ved in 17 linear steps starting from cis-1,4-butene-diol.

104 F4-) has been found to add to 2,3-dimethyl-2-butene (DMB) at 0 degrees C and -15 degrees C.

105 ark through the ozonolysis of 2,3-dimethyl-2-butene (DMB).

106 in the reaction of dichloroketene with cis-2-butene does not fit with a simple asynchronous cycloaddi

107 ohexane (D), 1,1,2-trisubstituted 2-methyl-2-butene (E), and isobutene (F).

108 ructural investigation of precise ethylene/1-butene (EB) copolymers has been completed using step pol

109 ted via a novel pathway involving 2-methyl-1-butene enchainment in the copolymer backbone.

110 udy the adsorption and reaction of 1-epoxy-3-butene (EpB) on Pt(111).

111 o give 1-cyclohexene-3-ol, and cis- or trans-butene epoxidation (without isomerization) and hydroxyla

112 The oxidation of cis-/trans-2-butene explained 71.1% of the in situ acetaldehyde forma

113 sized from inexpensive carbon monoxide and 2-butene feedstocks, and they can be chemically recycled o

114 f gamma-valerolactone (GVL) over Zn/ZSM-5 to butene, followed by aromatization at high yield with co-

115 on the adduct, [(phen)M(C6H11O2)](+), are 1-butene for M = Ni and Pd and methane for Pt.

116 species while these species are inert toward butene formation.

117 tal observation of products trapped by (Z)-2-butene, formation of cis- and trans-1,2-dimethylcyclopro

118 f the optical rotation of (R)-(-)-3-chloro-1-butene found a remarkably large dependence on the C=C-C-

119 -) produced by elimination of 2,3-dimethyl-2-butene from a pinacolatoboryl anion.

120 we were able to quantify the formation of 1-butene from n-butane, as well as the formation of a dist

121 c) and Ni(2)(m-dobdc) are able to separate 1-butene from the 2-butene isomers, a critical industrial

122 cts, while trans alkenes (except for trans-2-butene) gave predominantly monoadducts.

123 In the case of 1-butene, high Z-selective crotylation is observed.

124 The 1-butene hydride complex, (N/\N)Pt(H)(1-butene)+ (3), is a

125 ve workup of the 3-octene and 1-cyclohexyl-1-butene hydroborations.

126 ssure results in the catalytic production of butenes (i.e., ethylene hydrovinylation) and hexenes.

127 at -56 degrees C to give 3-(4-bromophenyl)-1-butene in >98% yield and selectivity.

128 oxidative decarboxylation of valeric acid to butene in aqueous electrolytes.

129 -butane and reasonable desorption barrier of butene in the DDH reaction.

130 of 2,3-dimethyl-1-butene and 2, 3-dimethyl-2-butene in the gas phase and methylene chloride extracts

131 avior of 1-butene, cis-2-butene, and trans-2-butene in the metal-organic frameworks M(2)(dobdc) (M =

132 thylene, propane, propylene, n-butane, and 1-butene in ZIF-8 are reported over a temperature range of

133 on of allyl benzene with cis-1,4-diacetoxy-2-butene increasing the steric bulk at the ortho positions

134 A study of the reaction of 2-butenes indicated that beta-H elimination occurs prefere

135 tabilized CH(2)OO reached the plateau from 1-butene, indicating that CH(2)OO was produced with nearly

136 itated the selective oxidation of 2-methyl-2-butene into the allylic alcohol, 3-methyl-2-buten-1-ol,

137 oligomerization of ethylene, propylene, and butenes into a wide range of oligomers that are highly s

138 Higher selectivity for 1-butene is found using the Ni@(Fe)MIL-101 catalyst than r

139 Adsorption of 1-butene is studied using calorimetry and density function

140 opy, a mixture of propylene, 1-butene, and 2-butenes is formed.

141 Iso-butene (iso-C(4)H(8)) is an important raw material in ch

142 Catalytic tests of 1-butene isomerization reveal a 3-fold enhancement of cata

143 te-1 shows enhanced catalytic activity for 1-butene isomerization, while HPA on conventional silicali

144 and the catalytic activity is studied for 1-butene isomerization.

145 ressure, via sequential ethene dimerization, butenes isomerization and cross-metathesis.

146 ive site titrations reveal that 2,3-dimethyl-butene isomers (4MEs) cofeeding increases active site de

147 dc) are able to separate 1-butene from the 2-butene isomers, a critical industrial process that relie

148 erization is favored, producing a mixture of butene isomers.

149 e libraries treated with trans-1,4-dibromo-2-butene led to the discovery of both linear and cyclic pe

150 and 2.660(1) angstrom for 2), bridged by a 2-butene-like As(4) unit.

151 alpha-olefins > cis-2-butene (2.2) > trans-2-butene (<0.1).

152 reoselective with a approximately 70:30 Z-:E-butene mixture, which is a byproduct of crude oil cracki

153 (e.g., H ZSM-5, Amberlyst-70), which couples butene monomers to form condensable alkenes with molecul

154 h uptakes for 1,3-butadiene (C(4)H(6)) and n-butene (n-C(4)H(8)) counterparts, endowing high efficien

155 of various hydrocarbons (methane, ethane, 1-butene, n-butane and toluene) using a solid-oxide fuel c

156 0+/-21.83 GPU) and a high selectivity over n-butene, n-butane, isobutene, and isobutane (9.72, 9.94,

157 bromopropane (NDI-NI) or trans-1,4-dibromo-2-butene (NDI-CI) via quaternization polymerization.

158 gests that "hot" ketene may react with (Z)-2-butene nonstereospecifically.

159 ty of 1-epoxybutane formation from 1-epoxy-3-butene on palladium catalysts from 11 to 94% at equivale

160 kene and alkyne metathesis), bifunctional (1-butene or 2-butenes to propylene), trifunctional (ethyle

161 1-butene), but not bulkier alkenes such as 2-butene or cyclohexene, were catalyzed by 1-H+ and the ed

162 selectivity in the conversion of ethene to n-butene or ethane, respectively, as a result of tuning th

163 f human MAO B in complex with 1,4-diphenyl-2-butene or with trans,trans-farnesol provide molecular in

164 P-mediated beta-lithiation of 2,3-dimethyl-2-butene oxide affords the corresponding allylic alcohol v

165 perfectly alternating copolymerization of 1-butene oxide and carbic anhydride using a (salph)AlCl/[P

166 Gas-phase heats of formation for the four butene oxide isomers are reported.

167 and selective for other epoxides, such as 1-butene oxide, 1-hexene oxide, and styrene oxide.

168 calculations on the O-methyl-2,3-dimethyl-2-butene oxonium ion along with transition states and inte

169 oupling product 14b with cis-1,4-diacetoxy-2-butene proceeds readily to afford the allylic acetate 14

170 , and 68 mol(ethylene).mol(Ni)(-1).s(-1) for butenes production with 87.2(3)% selectivity for 1-buten

171 detected in the hydrogenation products of 1-butene, propyne, and 1-butyne.

172 H(2)CH(2)P(t)Bu(2)) with H(2) and propene, 1-butene, propyne, or 1-butyne are explored by gas-phase n

173 0% I2 followed by addition of 2,3-dimethyl-2-butene provided the corresponding thexyl NHC-borane (diM

174 ved selectivity for various functionalized 1-butenes, providing insight into strategies for catalyst

175 , 1-methyl-1-cyclohexene, and 2,3-dimethyl-2-butene, representing one of the most active cobalt hydro

176 a 1,2-substituted cyclobutane ring, and a 2-butene residue.

177 2-disubstituted cyclobutane ring or with a 2-butene residue.

178 low temperature to generate propylene and 2-butenes, respectively.

179 tion rate (8.8 mol.g(Ir)(-1).h(-1)) and high butene selectivity (95.6%) at low temperature (450 degre

180 cing protons with sodium cations increases 1-butene selectivity by promoting desorption over hydrogen

181 The origin of 1-butene selectivity is traced to the high charge density

182 es, which results in a reversal of the cis-2-butene selectivity typically observed at framework open

183 macrocyclic ring-closing reactions, where E-butene serves as the methylene capping agent, are provid

184 o catalyze the dimerization of ethylene to 1-butene slowly.

185 cross-linked gel based on a styrene/ethylene-butene/styrene triblock copolymer in mineral oil, and th

186 we show, for reaction of chlorine atoms with butenes, that the Cl addition-HCl elimination pathway oc

187 From cis-2-butene the dominant product was the bisadduct (18), whil

188 For propene and 1-butene, the low-temperature addition leads to the anti-M

189 ianion including cis-dilithio-1,4-bis(TMS)-2-butene.(TMEDA)(2)2, internally solvated cis-dilithio-1,4

190 e 5, and using only modeling, 1,4-dilithio-2-butene.(TMEDA)(2)9 reveal remarkably similar structural

191 y statistical theory, while that of O(3) + 1-butene to 1-heptene is nonstatistical and intramolecular

192 the same internal energy distribution from 1-butene to 1-heptene.

193 a,alpha-dialkylation with cis-1,4-dichloro-2-butene to form polymer-bound 3-phenylsulfonylcyclopenten

194 as confirmed by trapping with 2,3-dimethyl-2-butene to form the aziridine and with oxygen to generate

195 ither intermolecularly (using 2,3-dimethyl-2-butene to generate a cyclopropane) or intramolecularly (

196 The isomerization of trans-2-butene to its cis conformer was found to be easier on Pt

197 the preference for the conversion of trans-2-butene to its less stable cis isomer on Pt(111) surfaces

198 yne metathesis), bifunctional (1-butene or 2-butenes to propylene), trifunctional (ethylene to propyl

199 3-O,O')](-) (6) that reductively eliminate 1-butene, to form [(CH2CO2-C,O)M(O2CCH3-O,O')](-) (4).

200 By incorporation of commercially available Z-butene together with robust and readily accessible Ru-ba

201 duces light olefins ethylene, propylene, and butenes, totalling a yield of 8.7%, which are important

202 p-dimethylaminoethoxy-phenyl)-1,2-diphenyl-1-butene; Tx), a chemotherapeutic xenoestrogen, increased

203 d selectivity for butadiene hydrogenation to butenes under mild conditions, demonstrating transferabi

204 ion of butenes with 41(1)% selectivity for 1-butene using ((Ph)PBP)NiBr, and 68 mol(ethylene).mol(Ni)

205 s production with 87.2(3)% selectivity for 1-butene using ((tBu)PBP)NiBr, have been demonstrated.

206 tor antagonist (+)-CP-99,994 from 4-phenyl-1-butene via Pd(0)-catalyzed asymmetric allylic and homoal

207 commercially available trans-1,4-dichloro-2-butene were converted to trans-disubstituted 5- and 6-me

208 ction of mixtures of propylene, ethylene and butenes, which are important chemical building blocks fo

209 tanes from natural/shale gas into propene or butenes, which are indispensable for the synthesis of co

210 available for the epoxidation of 2-methyl-2-butene with oxaziridines.

211 t with (E)-4-bromo-1-iodo-1-trimethylsilyl-1-butene with retention of configuration.

212 anism of the allylic oxidation of 2-methyl-2-butene with selenium dioxide was explored by a combinati

213 predicted barrier for reaction of 2-methyl-2-butene with SeO(2) being 21-24 kcal/mol lower than that

214 ch as 3-hexene, 3-octene, and 1-cyclohexyl-1-butene with the N-heterocyclic carbene (NHC)-derived bor

215 lene).mol(Ni)(-1).s(-1) for the formation of butenes with 41(1)% selectivity for 1-butene using ((Ph)

216 -ethoxy]phenyl]-1-(4-iodophenyl)-2-phenyl -1-butene] with the side chain (CH(2))(n) varying in length

217 tion to commercially available 1,4-dibromo-2-butene yields 3-alkyl-4-bromo-1-butene, a product of S(N