INTERMEDIATES IN THE PHOTOCHEMICAL-REACTION FOR THE FORMATION OF 2,7-DIMETHYLACRIDINE FROM DITOLYLAMINE AND BROMOFORM

The reaction of the photochemical synthesis of 2, 7-dimethylacridine f rom di(para-tolyl)amine and bromoform was studied utilizing the method of microsecond impulse photolysis. The proposed new scheme,for the fo rmation of acridine assumes the recombination of the primary alkyl rad icals at the nitrogen atom of the cation radical and/or the radical of the amine as the main route of the reaction. The data obtained indica te the common character of the nature of some intermediate stages and the structures of the intermediates in the photochemical formation of acridine compounds and triphenylmethane dyes from aromatic amines and halogenomethanes.