Synthesis of 6-thiaellipticine and related compounds via heterocyclic o-quinodimethane intermediates

…, N Mochizuki, S Hibino, S Shibuya

Index: Kano, Shinzo; Mochizuki, Naoki; Hibino, Satoshi; Shibuya, Shiroshi Journal of Organic Chemistry, 1982 , vol. 47, # 18 p. 3566 - 3569

Full Text: HTML

Citation Number: 9

Abstract

Product 6a was easily distinguished from 7a by the singlet at 6 9.64 attributable to H-1 observed in the'H NMR spectrum of 7a. The formation of 8a may occur through a disproportionation reaction of the cyclization intermediate, namely, by hydrogen generated on aromatization of the cyclization intermediates giving 6a and 7a. Thermolysis of 5b was examined under the same conditions as for