1H,13C, 19F NMR, and ESI mass spectral characterization of two geminal difluorosteroids |
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| Authors: | Sievänen Elina Noponen Virpi Král Vladimír Bríza Tomás Kolehmainen Erkki |
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| Affiliation: | Department of Chemistry, FIN-40014, University of Jyv?skyl?, Finland. elvirtan@cc.jyu.fi |
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| Abstract: | Two geminal difluorosteroids, 3,3-difluoro-5beta-cholan-24-oic acid (1) and 3,3-difluoro-5alpha-androstan-17-one (2), have been prepared from corresponding ketosteroids with diethylaminosulphurtrifluoride (DAST) treatment in moderate yields. The structures of 1 and 2 have been characterized by (1)H, (13)C, (19)F NMR, and ESI mass spectral techniques. |
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