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

Christopher D. Gabbutt, B. Mark Heron, John D. Hepworth, M. Moshfiqur Rahman

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Reaction of 3,4-dibromo-2,2,6,8-tetramethyl-2H-[1]benzopyran with either organolithium reagents or magnesium generates the novel aryne, 3,4-didehydro-2H-[1]benzopyran. Cycloaddition with dienes gives access to the dibenzo[b,d]pyran system.

Original languageEnglish
Pages (from-to)1313-1316
Number of pages4
JournalTetrahedron Letters
Volume37
Issue number8
DOIs
Publication statusPublished - 19 Feb 1996
Externally publishedYes

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