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Synthesis of 3-substituted 2-trifluoro(trichloro)methyl-2H-chromenes by reaction of salicylaldehydes with activated trihalomethyl alkenes

✍ Scribed by Vladislav Yu. Korotaev; Igor B. Kutyashev; Vyacheslav Ya. Sosnovskikh

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 78 KB
Volume: 16
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20146

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✦ Synopsis

The reaction of activated trihalomethylsubstituted alkenes with salicylaldehydes in the presence of triethylamine gives 3-substituted 2-trifluoromethylchroman-4-ols and 2-trifluoro(trichloro)methyl-2H-chromenes in high yields.

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