BERNARD, ANGELA M.;CERIONI, GIOVANNI;PIRAS, P. PAOLO;SEU, GIANFRANCO, SYNTHESIS,(1990) N0, C. 871-874
作者:BERNARD, ANGELA M.、CERIONI, GIOVANNI、PIRAS, P. PAOLO、SEU, GIANFRANCO
DOI:——
日期:——
Diastereoselective Dealkoxycarbonylation of Sulfur-Substituted Dialkyl Cyclopropane-1,1-dicarboxylates
作者:Angela M. Bernard、Giovanni Cerioni、P. Paolo Piras、Gianfranco Seu
DOI:10.1055/s-1990-27037
日期:——
In the dealkoxycarbonylation of dimethyl 2,2-dimethylcyclo- propane-1,1-dicarboxylate, 3-alkylthio or 3-arylthio substituents induce moderate diastereoselection. The analogous dealkoxycarbonylation of 3-alkylsulfonyl- or 3-arylsulfonyl-substituted cyclopropanes leads to an E diastereoselectivity of 100%.