The Journal of organic chemistry

1, 2-vs 1, 4-Addition of Acylbenzotriazoles to α, β-Unsaturated Aldehydes and Ketones. A Novel Route to 3-Alkyl-4, 6-diaryl-3, 4-dihydropyran-2-ones

AR Katritzky, OV Denisko

Index: Katritzky, Alan R.; Denisko, Olga V. Journal of Organic Chemistry, 2002 , vol. 67, # 9 p. 3104 - 3108

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Citation Number: 20

Abstract

Lithiation of aliphatic 1-acylbenzotriazoles with subsequent reaction with α, β-unsaturated ketones and aldehydes affords either 3, 4, 6-trisubstituted 3, 4-dihydropyran-2-ones or 1, 3- dienes depending on the carbonyl reagent used. Substituent effects on product yield and isomer ratio are discussed.

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