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Benzofurans. Ketene intermediates in the perkin reaction

โœ Scribed by William T. Brady; Yi-Qi Gu

Book ID
112128962
Publisher
Journal of Heterocyclic Chemistry
Year
1988
Tongue
English
Weight
162 KB
Volume
25
Category
Article
ISSN
0022-152X

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ฮฒ-Lactone as intermediate in the perkin
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โœ Stefan Kinastowski; Antoni Nowacki ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 120 KB

The Perkln reaction catalyzed by tertiary amlnes is found to run not according to the aldol-type condensation mechanism but according to the mechanism in which the first stage is the formation and cycloaddltlon of ketene, yielding a a-lactone, which cleaves to the unsaturated acid. Recently we repo