Stereoselective Synthesis of Difunctionalised 1,3-dienes Containing Silicon and Sulfur via Palladium Catalysed Cross-Coupling Reactions
作者:Haiyun Zhang、Xinglin Ye、Mingzhong Cai
DOI:10.3184/030823408x320656
日期:2008.6
Hydromagnesiation of alkynylsilanes 1 in diethyl ether gave (Z)-α-silylvinyl Grignard reagents 2, which underwent a cross-coupling reaction with (E)-α-iodovinyl sulfides 3 in the presence of Pd(PPh3)4 as catalyst to afford stereoselectively (Z,Z)-2-silyl-3-arylsulfanyl-substituted 1,3-dienes 4 in good yields.
Hydroalumination of Thioacetylenes: A Versatile Generation and Reactions of α-Aluminate Sulfides Intermediates
作者:P. G. Guerrero、M. J. Dabdoub、F. A. Marques、C. L. Wosch、A. C. M. Baroni、A. G. Ferreira
DOI:10.1080/00397910802369497
日期:2008.11.13
water, furnished exclusively the (Z)- and ( E )-vinyl sulfides, respectively. The regio- and stereochemistry of the intermediates generated, (Z)- and ( E )-phenylthio vinyl alanates, were determined by capture with iodine, which afforded the corresponding ( E )- and (Z)-1-iodo-1-phenylthio-2-organoyl ethenes. Reactions of the ( E )-iodo(thio)ketene acetals with n-BuLi followed by addition of hexanal
A stereoselective synthesis of α-halo vinyl sulfides and their applications in organic synthesis
作者:Mei Su、Wensheng Yu、Zhendong Jin
DOI:10.1016/s0040-4039(01)00556-1
日期:2001.6
alpha -Halo vinyl sulfides have been synthesized stereoselectively via the addition of the in situ! generated hydrogen halide to acetylenic thioether. alpha -Halo vinyl sulfides are versatile substrates that can undergo many important transformations. (C) 2001 Elsevier Science Ltd. All rights reserved.