Pseudoesters and Derivatives XXXV. Reactions of 4-Substituted-5-(Ethylthio)Furan-2(5H)-Ones Anions with Alkylating Agents

Abstract

Alkylation of anions derived from 5-ethylthio-4-substituted furanones (1–3) is described. The regioselectivity depends on the alkylating agent but mainly on the nature of the substituent. The alkylation of 4-methoxyfuranone 3 proceeds regioselectively to afford the 5-alkylated derivative as sole product.