Pseudoesters and Derivatives. XXXI1. Synthesis of 5-Ethylthio-, 5-Ethylsulfinyl- and 5-Ethylsulfonylfuran-2(5H)-ones
摘要:
Convenient syntheses of 5-(ethylthio)furan-2(5H)-ones 2a-k from the appropriate 5-methoxyfuran-2(5H)-one 1a-g are described. The oxidation to the corresponding sulfoxides 5a-c and sulfones 6a-f is also reported.
Pseudoesters and Derivatives. XXXI1. Synthesis of 5-Ethylthio-, 5-Ethylsulfinyl- and 5-Ethylsulfonylfuran-2(5H)-ones
摘要:
Convenient syntheses of 5-(ethylthio)furan-2(5H)-ones 2a-k from the appropriate 5-methoxyfuran-2(5H)-one 1a-g are described. The oxidation to the corresponding sulfoxides 5a-c and sulfones 6a-f is also reported.
Pseudoesters and Derivatives XXXV. Reactions of 4-Substituted-5-(Ethylthio)Furan-2(5H)-Ones Anions with Alkylating Agents
作者:Francisco Fariña、M. Victoria Martín、Ana Martínez de Guereñu
DOI:10.1080/00397919608004570
日期:1996.7
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.
Pseudoesters and Derivatives. XXXI<sup>1</sup>. Synthesis of 5-Ethylthio-, 5-Ethylsulfinyl- and 5-Ethylsulfonylfuran-2(5<i>H</i>)-ones
作者:Francisco Fariña、M. Victoria Martín、Rosa M. Martín-Aranda、Ana Martínez de Guereñu
DOI:10.1080/00397919308009801
日期:1993.2
Convenient syntheses of 5-(ethylthio)furan-2(5H)-ones 2a-k from the appropriate 5-methoxyfuran-2(5H)-one 1a-g are described. The oxidation to the corresponding sulfoxides 5a-c and sulfones 6a-f is also reported.