Titanocene(II)-promoted desulfurizative tertiary alkylation of 1,3-bis(phenylthio)alk-1-enes and β,γ-unsaturated thioacetals
作者:Takeshi Takeda、Naoki Nozaki、Naoko Saeki、Tooru Fujiwara
DOI:10.1016/s0040-4039(99)00975-2
日期:1999.7
The desulfurization of 1,3-bis(phenylthio)alk-1-enes with the low valent titanium species Cp2Ti[P(OEt)(3)](2) and subsequent reaction with tert-alkyl chlorides gave the terminal olefins regioselectively. The similar reactions also took place when beta,gamma-unsaturated thioacetals were treated successively with the titanocene(II) species and tert-alkyf chlorides, it was suggested that the present reactions proceeded via the formation of Q-vinyltitanium intermediate. (C) 1999 Elsevier Science I,td. All rights reserved.