4-Acyl-2H-thiopyran-3,5(4H,6H)-diones: Synthesis, Oxidation, and Reaction with Amines

Autor: M. V. Budnikova, Dmitry B. Rubinov, T. A. Zheldakova, I. L. Rubinova
Rok vydání: 2003
Předmět:
Zdroj: Russian Journal of Organic Chemistry. 39:1772-1776
ISSN: 1070-4280
Popis: Acylation of 2H-thiopyran-3,5(4H,6H)-dione and 2-methyl-2H-thiopyran-3,5(4H,6H)-dione with acetyl chloride or propionyl chloride afforded the corresponding 4-acyl-2H-thiopyran-3,5(4H,6H)-diones. Oxidation of 4-acetyl-2H-thiopyran-3,5(4H,6H)-dione with m-chloroperoxybenzoic acid gave 4-acetyl-2H-thiopyran-3,5(4H,6H)-dione 1-oxide. 4-Acyl-2H-thiopyran-3,5(4H,6H)-diones and 4-acetyl-2H-thiopyran-3,5(4H,6H)-dione 1-oxide reacted with pyrrolidine, allylamine, and p-anisidine, resulting in formation of the corresponding 4-aminomethylene derivatives.
Databáze: OpenAIRE