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A novel reductive aromatization of 4,4-dimethyl-steroids.

โœ Scribed by H. de Nijs; W.N. Speckamp

Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
236 KB
Volume
14
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

In contrast to the multitude of acid-catalysed and pyrolytic steroidal aromatizations, only a few examples of reductive aromatization reactions have been described'). During our studies on the chemical properties of 4,4-&imethyl-A5V8(g) -steroidal azoester adducts 2) a novel highly selective ring B aromatization was discovered, which occurred in good yield upon treatment of la,b,d with LiA1H4 (LAH). In addition formation of 7a,7'a-his-steroids was detected3). The latter type of dimerization was found process in the LAB reaction of A 5,8(14) -a&ducts za,a.

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