Preparation and dimerisation of 2-phenylinden-1-one
Abstract
The preparation of 2-phenylindenone and its conversion into truxone-type photodimers (the tetrahydrocyclobuta-di-indenediones (6) and (7) and a Diels–Alder-type dimer {the tetrahydrobenz[a]indeno[2,1-c]fluorene-5,10-dione (5)} are described.