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Reactions of Phosphorus Compounds. IX. Synthesis of a Series of 2H-1-benzopyrans and Determination of the Mechanism of Reaction

โœ Scribed by Schweizer, Edward E.; Shaffer, E. T.; Hughes, C. T.; Berninger, C. J.


Book ID
126212148
Publisher
American Chemical Society
Year
1966
Tongue
English
Weight
662 KB
Volume
31
Category
Article
ISSN
0022-3263

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Reaction of 3,2, 6, benzopyran with either organolithium reagents or magnesium generates the novel strained alkyne, 3,4-didehydro-2H-[1]benzopyran. Cycloaddition with furans gives access to the dibenzo[b,d]pyran system.