Steroids and steroidases. VII. A unique long-range directing effect exerted by the cholestane C<sub>8</sub>H<sub>17</sub> group on the formation of A-homosteroid ketones
作者:J. Bryan Jones、J. Malcolm Zander
DOI:10.1139/v68-316
日期:1968.6.1
The diazomethane homologation of a broad spectrum of variously C-17-substituted steroid-3-ketones has shown that the C8H17 cholestane side chain exerts a unique influence on the direction of the ringenlargement reaction. This long-range effect is not explicable in terms of polar or conformational transmission.