Control of regioselectivity in the alkylation of 2-trimethylsilyl-2,5-dihydrothiophene 1,1-dioxide. A route for 2,2-dialkylation
作者:Hsi-Hwa Tso、Ta-Shue Chou、Wen-Cherng Lee
DOI:10.1039/c39870000934
日期:——
The readily available 2-trimethylsilyl-2,5-dihydrothiophene1,1-dioxide can be converted regioselectively into the dialkyl- and dispiro analogues, which are precursors of the corresponding 1,1-disubstituted buta-1,3-dienes and asymmetric dicycloalkylidenylethanes, respectively.