[3 + 2] Annulation of beta-heteroatom-substituted alpha,beta-unsaturated acylsilanes with methyl ketone enolates: scope and investigation of the reaction course.
A new route to (Z)-beta-silylacryloylsilanes 10 and the improved conditions for the [3 + 2] annulation using 10 and alkyl methyl ketone enolates are reported. Also, details of investigations defining a reaction course of the [3 + 2] annulation using beta-phenylthio- and beta-trimethylsilyl-acryloylsilanes 1 (X = SPh, SiMe(3)) and alkyl methyl ketone enolates are described.
Takeda
Kei
K
Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan. takedak@hiroshima-u.ac.jp
Yamawaki
Kenji
K
Hatakeyama
Noriaki
N