The Journal of Organic Chemistry

New synthesis of the 6H-pyrido [4, 3-b] carbazoles ellipticine and olivacine via cycloaddition of 2-phenylsulfonyl 1, 3-dienes to indoles

JE Baeckvall, NA Plobeck

Index: Baeckvall, Jan-E.; Plobeck, Niklas A. Journal of Organic Chemistry, 1990 , vol. 55, # 15 p. 4528 - 4531

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Citation Number: 51

Abstract

Mgl A'method for the synthesis of carbazole systems. The vinyl sulfone functionality in the C ring is of importance for further functi~ nalization.~ It occurred to us that Michael addition of a CCN unit may constitute a useful route toward ellipticine (la) and olivacine (lb). In this paper