The Insertion of Dimethyl Acetylenedicarboxylate into an S-Pd Bond
作者:Kunihiko Sugoh、Hitoshi Kuniyasu、Hideo Kurosawa
DOI:10.1246/cl.2002.106
日期:2002.1
The first definitive evidence of insertion of an alkyne into an S-Pd bond has been presented. The reaction of Pd(SAr)2(DPPE) with dimethylacetylenedicarboxylate (DMAD) gave the cis-insertion product (Z)-Pd-[C(CO2Me)=C(SAr)(CO2Me)](SAr)(DPPE), whose structure was unambiguously determined by X-ray crystallographic analysis.
已经提出了炔烃插入 S-Pd 键的第一个明确证据。Pd(SAr)2(DPPE)与乙炔二羧酸二甲酯(DMAD)反应得到顺式插入产物(Z)-Pd-[C(CO2Me)=C(SAr)(CO2Me)](SAr)(DPPE),其结构由 X 射线晶体学分析明确确定。
Synthesis and characterization of heterodinuclear thiolate complexes containing the Pd(η3-allyl)+ moiety. Crystal structure of [(dppe)Pd(μ-SC6H4Me-p)2Pd(η3-C3H5)][ClO4]
Hetero dinuclear complexes of the types [(dppe)M(mu-SR)(2)Pd(eta(3)-allyl)][ClO4] (M = Pd or Pt) and [(dppe)Pt(mu-SC2H4S)Pd(eta(3)-allyl)][ClO4] [dppe = 1,2-bis(diphenylphosphino)ethane; allyl = C3H5 or C4H7] have been obtained by reaction of the corresponding cis-dithiolato complexes, [M(SR)(2) (dppe)] or [Pt(SC2H4S)(dppe)]. and [Pd(eta(3)-allyl)(PhCN)(2)][ClO4]. The identity of these complexes has been established by NMR (H-1 and P-31) spectroscopy. The crystal structure of [(dppe)Pd(mu-SC6H4Me-p)(2)Pd(eta(3)-C3H5)][ClO4] has been determined by single-crystal X-ray methods. The p-tolyl groups on the sulfur atoms adopt a syn conformation with respect to the central Pd-S-2-Pd core. (C) 2000 Elsevier Science Ltd. All rights reserved.