TITANIUM TETRACHLORIDE PROMOTED REDUCTION OF ALKENYL SULFIDES USING TRIETHYLSILANE AS A REDUCING AGENT
作者:Takeshi Takeda、Toshio Tsuchida、Tooru Fujiwara
DOI:10.1246/cl.1984.1219
日期:1984.7.5
Alkenyl sulfides were reduced to the corresponding alkyl sulfides with triethylsilane in the presence of titanium tetrachloride in good yields. The reduction proceeds via -phenylthioalkyltitanium i...
2-(Phenylthio)alkanenitriles, homoallyl sulfides, and thioacetals were obtained in good yields by the reaction of alkenyl sulfides with the corresponding silyl nucleophiles via thionium ion intermediates.
β-Phenylthioalkyltitanium reagent prepared by the hydrotitanation of alkenyl sulfide using triethylsilane and titanium tetrachloride is found to react with aromatic aldehyde or α,β-unsaturated ketone to give the corresponding γ-hydroxyalkyl sulfide or δ-phenylthio ketone, respectively.
A cross-aldol type reaction of alkenyl sulfide with trimethylsilyl enol ether.
作者:Takeshi Takeda、Yuichiro Kaneko、Tooru Fujiwara
DOI:10.1016/s0040-4039(00)84708-5
日期:1986.1
β-Phenylthio ketones were obtained in good yields by the successive treatment of alkenyl sulfides with TiCl4 -ROH (R= Me or t-Bu) and trimethylsilylenolethers.
Synthesis of vinyl selenides or sulfides and ketene selenoacetals or thioacetals by nickel(II) vinylation of sodium benzeneselenolate or benzenethiolate
作者:H. J. Cristau、B. Chabaud、R. Labaudiniere、H. Christol