An unusual base-mediated ring contraction reaction of benzopyrans to benzofurans

DOI: 10.1016/S0040-4039(00)91873-2

Source and publish data:

Tetrahedron Letters p. 1109 - 1112 (1992)

Update date:2022-08-03

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Authors:

Buckle Buckle

Faller Faller

Pinto Pinto

Smith Smith

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Article abstract of DOI:10.1016/S0040-4039(00)91873-2

The reaction of electron deficient pyrroles and pyrazoles with trans 3-bromo-6-cyano-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-4-ol under basic conditions results in the formation of 2-isopropylbenzofurans by a mechanism which appears to be dependent on th

Full text of DOI:10.1016/S0040-4039(00)91873-2

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Product name:2H-1-Benzopyran-6-carbonitrile, 3,4-dihydro-3,4-dihydroxy-2,2-dimethyl-, trans-

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