ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Ultraviolet irradiation of the steroidal cross-conjugated dienones 3 and 7, and of the bicyclohexenone derivative 16 in dioxane solution produced the virtually quantitative isomerizations 3 → 11 (Chart 3) and 7 → 16 → 17 (Chart 6). These conversions are consistent with the previously established general scheme a → b → c → d → e (Chart 1). By analogy with these results, it is suggested that the photo-isomers 9 and 10 of O-acetylprednisone (8) represent products resulting from multiple photorearrangements rather than from direct transformations, as had been proposed in the literature.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19660490315
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