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The generation and reactions of 3,4-didehydro-2H-[1]benzopyran, a highly strained heterocycle

✍ Scribed by Christopher D Gabbutt; B.Mark Heron; John D Hepworth; M.Moshfiqur Rahman


Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
199 KB
Volume
37
Category
Article
ISSN
0040-4039

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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.

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