A new method for the preparation of fluoro steroids
β Scribed by Donald E. Ayer
- Publisher
- Elsevier Science
- Year
- 1962
- Tongue
- French
- Weight
- 371 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Several diaryl(fluoro)-l 6 -sulfanenitriles 3 were synthesized by the reaction of S,S-diarylsulfimides 1 with Selectfluorβ’. This reaction also allows the first preparation of heterocyclic fluoro-l 6 -sulfanenitrile, 5-fluoro-10,10-dioxo-5,10-dihydro-5l 6 ,10l 6thianthren-5-nitrile (5) and its molecu
Conjugate 1,4-addition of 1- [(tert-butyldimethylsilyl)oxy]-2-methyl-1,3-cyclohexadiene (5) to 2-methylcyclopentenone in highly polar media and subsequent alkylation of the resultant silyl enol ether (4) with phenylthiodienyl carbonate I0 in 5.0 M LiC104.Et20 provides substrate 2. Exposure of 2 to T
de Quimica ARONG quinone pigments, the derivatives of naphtazarin (3,&dihydroxyl,&naphtoquinone) present a special interest, not only because they are important natural products, the structure of which has not been elucidated in many cases, but also because they have been employed as colouring matte