Synthesis of optically active 10,11-dihydro-5h-dibenzo[a,d]cycloheptenes
作者:Johannes Platzek、Günther Snatzke
DOI:10.1016/s0040-4020(01)87675-4
日期:1987.1
dibenzosuberone by dehydrogenation, reduction of the keto group and dicarboxylation. After resolution with cinchonine the (-)-enantiomer served as starting material for various transformation products with trans-configuration of the substituents at the 10,11-positions. Ring closure between these two groups led to the introduction of an additional homo- or heterocyclic ring. Attempted bromination of the dimethyl