Efficient photochemical synthesis of tricyclic keto??indoles

C Tietcheu, C Garcia, D Gardette…

Index: Tietcheu, Christele; Garcia, Christophe; Gardette, Daniel; Dugat, Denise; Gramain, Jean-Claude Journal of Heterocyclic Chemistry, 2002 , vol. 39, # 5 p. 965 - 973

Full Text: HTML

Citation Number: 16

Abstract

Abstract Tricyclic keto-indoles were synthesized by photocyclization of easily obtained enaminones in an electro-cyclic photochemical reaction. The three methods reported were chosen according to the enaminone structure. The most general procedure using one-step synthesis was carried out in a benzene-methanol solution in the presence of sodium methylate. In the case of base sensitive substrates, the best method was photocyclization ...