ChemInform Abstract: New Substituted Derivatives of Benzopyran and Chromone.

✍ Scribed by F. POCHAT; P. L'HARIDON

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 29 KB
• Volume: 29
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199827158

✦ Synopsis

New Substituted Derivatives of Benzopyran and Chromone.

-It is shown that bromocrotononitrile readily undergoes a cyclization reaction with ortho-carbonylated (I) or carboxylated phenols (V), leading to benzopyrans (III) and (IV) or chromones (VII) with a captodative substitution. -(POCHAT,