Chemistry Letters, Vol.32, No.2, 128-129, 2003
Asymmetric synthesis of gem-dimethylcyclopropane-fused compounds through chemo-, regio-, and stereoselective cyclopropanation and stereospecific rearrangement
Optically active gem-dimethylcyclopropane-fused compound was synthesized by a tandem reaction consisting of chemo-, regio-, and stereoselective cyclopropanation of a 4-substituted 7,7-dimethylcycloheptatriene with an internal diazo ester and following stereospecific rearrangement.