New construction of a steroidal ring system. Stereoselective synthesis of (.+-.)-androstane-2, 17-dione

T Kametani, Y Suzuki, H Furuyama…

Index: Kametani; Suzuki; Furuyama; Honda Journal of Organic Chemistry, 1983 , vol. 48, # 1 p. 31 - 33

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Citation Number: 8

Abstract

In a recent development toward the synthesis of steroids, the intramolecular cycloaddition reaction has played an important role because of its effective regio-and stereoselectivity. Among the numerous reports using it as a key step, much attention has been focused on the synthesis of A-aromatic steroids1v2 such as estrone and estradiol and on the stereocontrolled construction of trans-hydrindan ring sy~ tems.~ We now report a novel ...