Reaction of silyl thioketones with lithium diethylphosphite: first observation of Thia–Brook rearrangement
作者:Kei Takeda、Koichi Sumi、Susumu Hagisawa
DOI:10.1016/s0022-328x(00)00482-4
日期:2000.10
Reaction of silylthioketone 7 with lithium diethylphosphite at −98°C afforded a S-attack product 8 and formal C-attack products 10 and 11, which were formed by S-to-C migration of the phosphoryl group in the S-adduct followed by C-to-S migration of the silyl group (Thia–Brook rearrangement), in a ratio depending on the conditions. The relative facility of the Thia–Brook rearrangement was compared