Aromatic alkenylation using electrophilic organogallium reagent generated from allenylsilane and GaCl3
作者:Yoshiyuki Kido、Fumi Yonehara、Masahiko Yamaguchi
DOI:10.1016/s0040-4020(00)01043-7
日期:2001.1
Aromatic hydrocarbons are alkenylated with silylallene in the presence of GaCl3 at -90 degreesC. Organometallic electrophiles generated from the allene and GaCl3 are the active species in this reaction. A modest level of ortho-selectivity is observed. While the silylallene reacts exclusively at the 2-position, 1,2-alkradiene reacts at the 1-position predominantly. (C) 2001 Elsevier Science Ltd. All rights reserved.