ISSN:
1434-193X
Keywords:
Cycloadditions
;
Dehydrochlorination
;
Cycloheptenones
;
Tropones
;
Tropolones
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
-Pentachloroacetone (1) reacts with several conjugated dienes in the presence of sodium trifluoroethoxide/trifluoroethanol to form cycloadducts of a tetrachlorooxyallyl intermediate 6, mainly in the [4+3] mode. Representative [4+3] cycloadducts, i.e. α,α,α′,α′-tetrachlorocycloheptenones 9, have been dehalogenated and dehydrohalogenated, furnishing α,α′-dichlorotropones 15 in high yields.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
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