ISSN:
0947-3440
Keywords:
3-Thioxoandrosta-1,4-dien-17-one
;
Cycloaddition reactions
;
Steroids
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
3-Thioxoandrosta-1,4-dien-17-one (4) reacts with acetylene dicarboxylic acid esters to form novel spiro compounds of the thiine type (6a, 6b), whereas with free acids, such as acetylene dicarboxylic acid and propiolic acid, the spirocyclic O,S-acetals 7a and 7b are obtained. This study demonstrates that the cycloaddition reaction is promoted by photochemical and also thermal activation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.199719971124
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