Long-range effect of 17-substituents in 3-oxo steroids on 4, 5-double bond hydrogenation
…, K Stránský, A Kasal, B Slavíková…
Index: Sidova, Romana; Stransky, Karel; Kasal, Alexander; Slavikova, Barbora; Kohout, Ladislav Collection of Czechoslovak Chemical Communications, 1998 , vol. 63, # 10 p. 1528 - 1542
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Abstract
Abstract The long-range effect of substituents in the 17-position on the hydrogenation of double bond of the steroidal∆ 4-3-ketones in acetic acid on a platinum catalyst is described in a series of testosterone (1) and epitestosterone (5) esters with carboxylic acids of varying alkyl chain length. The ratio 5α-to 5β-products is affected by the nature of substituents in the position 17.
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