Novel aromatic systems. Part VII. Attempts to make derivatives of dibenzo[a,d]cyclohepten-2(or 3)-one
Abstract
An efficient synthesis of 2,3-dimethoxy-5H-dibenzo[a,d]cyclohepten-10(11H)-one has been developed, and from it, 2,3-disubstituted-5H-dibenzo[a,d]cycloheptenes have been prepared.