W(CO)3(PMTA = MeN (CH2CH2NME2)2) as a starting material for syntheses of W(CO)3(PR3)3, W(CO)3(η6-arene,) and the protonated W(H)(CO)3(PR3)+3 complexes
作者:Valerio Zanotti、V. Rutar、Robert J. Anelici
DOI:10.1016/0022-328x(91)86100-5
日期:1991.8
method for the preparation of W(CO)3(PR3)3 and (CO3(η6-arene) complexes. The reactions W(CO)3(L)3 [L = PMe3, PEt3, PMe2Ph, PMePh2, PhP(CH2Ch2PPh2)2, and CH3C(Ch2PPh2)3]with CF3SO3H in CH2Cl2 solution yield the hydrido derivaties W (H)(CO)3(L)+3 which were characterized by their 1H and 31 P NMR spectra at different temperatures. These studies show the W(H)(CO)3(L)+3 complexes to be fluxional as a result
Generation and spectroscopic observation of a tungsten-carbene-alkene intermediate in cyclopropane formation
作者:Charles P. Casey、Alan J. Shusterman
DOI:10.1021/om00123a021
日期:1985.4.1
1,3,5-Trimethyl-1,3,5-triazacyclohexane tricarbonyl complexes of Mo and W as sources of the fac-M(CO)3 fragment. Mild syntheses of fac-[M(CO)3(CH3CN)3] (M=Mo, W), [W(CO)3(PR3)3], [W(CO)(alkyne)3] and [W(CO)3(π-arene)] complexes
作者:Murray V Baker、Michael R North
DOI:10.1016/s0022-328x(98)00642-1
日期:1998.8
The 1,3,5-trimethyl-1,3,5-triazacyclohexane (Me(3)tach) group in [M(CO)(3)(Me(3)tach)] complexes (M=Mo, W) is easily displaced by a variety of ligands under mild conditions. The lability of the Me(3)tach ligand allows the [M(CO)(3)(Me(3)tach)] complexes to be used as synthetic intermediates in convenient syntheses of products such as fac-[M(CO)(3)(CH3CN)(3)] (M=Mo,W), [W(CO)(alkyne)(3)], [W(CO)(3)(PR3)(2)] and [W(CO)(3)(eta(6)-arene)] complexes. An improved synthesis of [W(CO)(3)(Me(3)tach)] from [W(CO)(6)] and Me(3)tach is described. (C) 1998 Elsevier Science S.A. All rights reserved.
Macomber, David W.; Hung, Mu-Huang; Verma, Akhilkumar G., Organometallics, 1988, vol. 7, # 9, p. 2072 - 2074
作者:Macomber, David W.、Hung, Mu-Huang、Verma, Akhilkumar G.、Rogers, Robin D.