Marson, CM and Decreau, RA and Smith, KE (2002) Preparation of 3 alpha-Fluoro- and 3 beta-Fluoro derivatives of 5 alpha-androst-16-enes and androsta-5,16-dienes. SYNTHETIC COMMUN , 32 (14) 2125 - 2135. 10.1081/SCC-120005419.
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Abstract
n-Perfluorobutanesulfonyl fluoride, in the presence of DBU, is shown to be a convenient and satisfactory reagent for the preparation of a variety of unsaturated 3-fluorosteroids of defined stereochemistry. 3-Fluoro-16,17-dehydrosteroids are reported for the first time. Fluorodehydroxylation proceeded with retention of configuration for 5,6,16,17-tetradehydro-3beta-sterols, but with inversion for their 3alpha-analogues, as it did for several 16,17-dehydrosterols.
| Type: | Article |
|---|---|
| Title: | Preparation of 3 alpha-Fluoro- and 3 beta-Fluoro derivatives of 5 alpha-androst-16-enes and androsta-5,16-dienes |
| DOI: | 10.1081/SCC-120005419 |
| Keywords: | 3-Fluorosteroids, fluorodehydroxylation, n-perfluorobutanesulfonyl fluoride, STEROIDS, MECHANISM, ALCOHOLS, SWEAT |
| UCL classification: | UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry |
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