The Journal of Organic Chemistry

Synthesis of the phosphasteroid system and of potential tricyclic precursors by the McCormack cycloaddition method

C Symmes Jr, LD Quin

Index: Symmes,C.; Quin,L.D. Journal of Organic Chemistry, 1979 , vol. 44, p. 1048 - 1056

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Citation Number: 14

Abstract

Cycloaddition of the diene 3, 4-dihydro-7-methoxy-l-vinylphenanthrene and CH3PC12 proceeded in good yield to give, after hydrolysis, a derivative with the tetracyclic steroid system containing phosphorus at the 17 position (A). The isomeric 2-vinyl compound also gave a tetracyclic derivative (a 15-phosphasteroid. B), but less readily. Hy-