Directive and shielding effects of the trimethylsilyl group. Unprecedented β-selectivity in the reaction of α,β-epoxyalkylsilanes with hindered α-sulphonyl anions
作者:Pawel Jankowski、Stanislaw Marczak、Marek Masnyk、Jerzy Wicha
DOI:10.1039/c39910000297
日期:——
Anions generated from hindered primary and secondary alkyl phenyl sulphones react with trimethylsilyloxirane to yield a mixture of products of addition in α- and β-positions or exclusively the product of addition in the β-position.
由受阻伯和仲烷基苯基砜产生的阴离子与三甲基硅基环氧乙烷反应,产生α-和β-位加成产物的混合物,或仅产生β-位加成产物。