ライフサイエンスコーパス: aryloxide

1 ligand such as amide, cyclopentadienide, and aryloxide).

2 ke 1, catalysts containing ortho-substituted aryloxides, 2, do not give a strictly statistical distri

3 ination number of Zr is restricted to six in aryloxides 4 and 5, while seven-coordination is achieved

4 e process involving an enantiomerically pure aryloxide, a class of ligands scarcely used in enantiose

5 tional theory (DFT) studies suggest that the aryloxide acts as a base to form a Cu(II)-bound enolate,

6 how that simple uranium complexes UX(3) (X = aryloxide, amide) spontaneously disproportionate, transf

7 in 2 is in stark contrast to its known tris-aryloxide analog, [(mes((Me,Ad)ArO)(3))U(V)(O(ax))(THF)]

8 (1)H NMR spectroscopic investigations of the aryloxide analogue La(2)(OAr)(6) (4) show that the bridg

9 of loss of the two possible leaving groups, aryloxide and hydroxamate, are essentially the same as t

10 ated Lewis pairs (FLPs) based on zirconocene aryloxide and phosphine moieties that exhibit a broad ra

11 o shed light on the nature of the metal-tris(aryloxide) and eta(2)-H, C metal-alkane interactions in

12 e, carbene, amide, imide, nitride, alkoxide, aryloxide, and oxo compounds, 4) describes advances in t

13 le to yield an activated electrophile and an aryloxide anion.

14 the potassium salt of the uranium(III) tetra(aryloxide) anion, K[U(OAr)(4)], as a result of ligand re

15 ylene bisimides (PBIs) and various bidentate aryloxide anions, previously associated with an S(RN)1 m

16 have Ad groups at the ortho positions of the aryloxide arms is sufficient to stabilize a C(3v)-symmet

17 he equatorial plane (as defined by the three aryloxide arms of the ligand) in order to accommodate th

18 t type is described, in which an imidazolium-aryloxide betaine moiety cooperates with a Lewis acidic

19 ), which are synthesized via reaction of the aryloxide-bridged precursor (Cp(iPr5))(2)U(2)(OPh(tBu))(

20 osition is followed by beta-migration of the aryloxide, carboxylate, or tosylate group.

21 Among the iron alkoxide and aryloxide catalysts evaluated, the iron phenoxide comple

22 chanistic experiments revealed that iron bis(aryloxide) catalysts initiate polymerization with one al

23 Attempted reduction of the tris(aryloxide) complex under N(2) gave only the potassium sa

24 entafluorobenzene, to give the corresponding aryloxide complexes (PCP)Ir(CH(3))(OAr).

25 The dimethyl aryloxide complexes [(PNP)M(CH3)2(OAr)] (M=Zr or Hf; PNP

26 ies of this analogous series of uranium tris-aryloxide complexes supported by triazacyclononane are d

27 Of the aryloxide complexes, only the U(OC(6)H(2)-Bu(t)(3)-2,4,6

28 ionic metathesis to form the anticipated bis(aryloxide) complexes Ar'Bi(OC(6)H(3)Me(2)-2,6)(2) (2) an

29 The macrocyclic triazacyclononane tris-aryloxide derivative occupies six coordination sites, wi

30 nd a dark-orange complex containing only one aryloxide-derived ligand bound via a Bi-C and not a Bi-O

31 The di-tert-butyl aryloxide does not insert CO(2), and only U(ODtbp)(4) wa

32 )(6) (4) show that the bridging and terminal aryloxide groups exchange by a mechanism in which the di

33 de (MAP) complexes that contain OHIPT as the aryloxide (hexaisopropylterphenoxide) are effective cata

34 "small" imido (Ad = 1-adamantyl) and "large" aryloxide (HIPTO = O-2,6(2,4,6-i-Pr(3)C(6)H(2))C(6)H(3))

35 (tacn) bonding parameters for the metal-tris(aryloxide) interaction.

36 denum that contain a chiral bitetralin-based aryloxide ligand are efficient for ethenolysis of methyl

37 (ROM) of COE is due to the large size of the aryloxide ligand, which forces both the alkylidene and t

38 While the electronic effects from the aryloxide ligands also play a role, our work outlines ho

39 Surprisingly, in each structure the four aryloxide ligands are arranged in a square-planar geomet

40 allacyclobutane intermediates with imido and aryloxide ligands in axial positions.

41 the cycloreversion metathesis step such that aryloxide ligands with no ortho aryls mainly impact the

42 n of the methoxy C-H bond, followed by alpha-aryloxide migration to give cis-(PCP)Ir(H)(CH2)(OAr), fo

43 The aryloxide (OAr) groups of the macrocycle are essential i

44 gh Z-selectivity is achieved because a large aryloxide only allows metallacyclobutanes to form that c

45 upies six coordination sites, with the three aryloxide pendant arms forming a trigonal plane at the m

46 monomeric LaX(3) (X = OPh or NHPh) with the aryloxide pi-arene interaction being stronger than the a

47 The gallium aryloxide polymer, [[((t)Bu)(2)Ga](2)(mu-OC(6)H(4)O)](n)

48 ity of the different species to the alkoxide/aryloxide ratio, the compounds were determined to be mix

49 has a similar absolute activity, though the aryloxide-rich catalysts are significantly longer-lived.

50 ips for a series of pseudotetrahedral Co(II) aryloxide, siloxide, arylthiolate, and silylthiolate com

51 stituted alkene and is catalyzed by a Mo bis(aryloxide) species.

52 methyl- and neopentyl (nP)-substituted tris(aryloxide) U(III) complex [(((nP,Me)ArO)3tacn)U(III)] (1

53 is exhibited by the well-known uranium tris(aryloxide) U(ODtbp)(3), U(OC(6)H(3)-Bu(t)(2)-2,6)(3), an

54 The electron-rich, six-coordinate tris-aryloxide uranium(III) complex [((AdArO)3tacn)U(III)] [w

55 The same uranium tris(aryloxides) were also found to couple carbon monoxide un

56 thodology is the multifunctional role of the aryloxide, which operates as a leaving group, Bronsted b

57 tane intermediates (SP/TBP isomers), whereas aryloxides with pendant ortho aryls influence the transi