THE GENERATION AND REACTIONS OF 3,4-DIDEHYDRO-2H-[1]BENZOPYRAN, A HIGHLY STRAINED HETEROCYCLE

Authors
GABBUTT CD HERON BM HEPWORTH JD RAHMAN MM
Citation
Cd. Gabbutt et al., THE GENERATION AND REACTIONS OF 3,4-DIDEHYDRO-2H-[1]BENZOPYRAN, A HIGHLY STRAINED HETEROCYCLE, Tetrahedron letters, 37(8), 1996, pp. 1313-1316
Citations number
39
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
37
Issue
8
Year of publication
1996
Pages
1313 - 1316
Database
ISI
SICI code
0040-4039(1996)37:8<1313:TGARO3>2.0.ZU;2-7
Abstract
Reaction of 3,4-dibromo-2,2,6,8-tetramethyl-2H-[1]benzopyran with eith er 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.