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Magn Reson Chem. 2008 Apr;46(4):392-7. doi: 10.1002/mrc.2190.

1H,13C, 19F NMR, and ESI mass spectral characterization of two geminal difluorosteroids.

Author information

1
Department of Chemistry, FIN-40014, University of Jyväskylä, Finland. elvirtan@cc.jyu.fi

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.

PMID:
18273878
DOI:
10.1002/mrc.2190
[Indexed for MEDLINE]

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