期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 4, 期 2, 页码 2004-2007出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2016.03.027
关键词
PEG-400; Vinyl sulfides; Green chemistry; Catalyst-free; Base-free
资金
- CNPq
- FAPERGS
- CAPES
- FINEP
PEG-400 was used as a green and recyclable solvent in an efficient, simple and straightforward method for the synthesis of beta-arylthio-alpha,beta-unsaturated esters, ketone and aldehyde through the hydrothiolation of alkynes with arylthiols under base-and catalyst-free conditions. The reactions were performed under mild conditions and furnished selectively the respective (Z)-beta-arylthio-alpha,beta-unsaturated compounds from alkynyl esters and ketone, while from alkynyl aldehyde, the (E)-stereoisomer was obtained, in good yields and moderate reaction times. PEG-400 was reused in up 5 successive reactions without previous treatment, affording products in comparable yields. (C) 2016 Elsevier Ltd. All rights reserved.
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