A three-component reaction of phenol, aldehyde, and active methylene substrate under Lewis acid catalysis: Successful trapping of o-quinone methide to afford benzopyran systems

A three-component condensation involving reactive phenols, aldehydes, and active methylene substrates is described under BF3.Et2O catalysis to afford benzopyranyl products in satisfactory yields.

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Bibliographic Details
Published inChemistry letters Vol. 33; no. 8; pp. 1058 - 1059
Main Authors Mashraqui, SH, Patil, MB, Mistry, HD, Ghadigaonkar, S, Meetsma, A
Format Journal Article
LanguageEnglish
Published TOKYO Chemical Soc Japan 05.08.2004
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
TANDEM REACTIONS
ELECTRON-RICH DIENES
CHEMISTRY
ORGANIC-SYNTHESIS
DERIVATIVES
4+2 CYCLOADDITION REACTIONS
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Summary:A three-component condensation involving reactive phenols, aldehydes, and active methylene substrates is described under BF3.Et2O catalysis to afford benzopyranyl products in satisfactory yields.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2004.1058