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Free Radical Cyclization Reactions of Alkylsulfonyl and Alkylthio Substituted Aromatic Amide Derivatives

✍ Scribed by Yi-Lung Wu; Che-Ping Chuang; Pey-Yun Lin

Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 153 KB
Volume: 56
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(00)00580-9

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✦ Synopsis

AbstractÐFree radical cyclization reactions of alkylsulfonyl and alkylthio substituted aromatic amide derivatives are described. Carbon radicals can be generated ef®ciently from the sulfonyl radical induced reaction of allylsulfones or the oxidation of carbonyl compounds with manganese(III) acetate. These radicals undergo either 6-membered or 5-membered ring cyclization onto the aromatic ring effectively and provide synthetically useful methods for the syntheses of quinolinones, indolinones and indolinediones.

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