SYNTHESIS OF YDROXY-2,2-DIMETHYL-2H-1-BENZOPYRAN-6-CARBONITRILE DERIVATIVES VIA AN UNUSUAL 1,4-OXYGEN TO NITROGEN HETEROARYL MIGRATION

Authors
Citation
Cz. Ding et Av. Miller, SYNTHESIS OF YDROXY-2,2-DIMETHYL-2H-1-BENZOPYRAN-6-CARBONITRILE DERIVATIVES VIA AN UNUSUAL 1,4-OXYGEN TO NITROGEN HETEROARYL MIGRATION, Tetrahedron letters, 37(26), 1996, pp. 4447-4450
Citations number
20
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
37
Issue
26
Year of publication
1996
Pages
4447 - 4450
Database
ISI
SICI code
0040-4039(1996)37:26<4447:SOYD>2.0.ZU;2-Q
Abstract
Various heteroaryls were found to undergo 1,4-oxygen to nitrogen migra tion (e.g. 4-->1) under acidic conditions. This unprecedented migratio n provides a convenient access to ydroxy-2,2-dimethyl-2H-1-benzopyran- 6-carbonitrile derivatives, which are otherwise difficult to prepare. Copyright (C) 1996 Elsevier Science Ltd