期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 269, 期 1-2, 页码 214-217出版社
ELSEVIER
DOI: 10.1016/j.molcata.2007.01.014
关键词
Michael addition; thiols; alpha,beta-unsaturated olefins; boric acid
Boric acid acts as an efficient catalyst for the conjugate addition of aliphatic thiols, dithiols and aromatic thiols to alpha,beta-unsaturated nitriles, esters, ketones and aldehydes with very good yields in water at room temperature. The reactions are faster in MeOH or EtOH. The use of boric acid, being a safe chemical, as the catalyst and water as the reaction medium are important attributes in the present protocol. (c) 2007 Elsevier B.V. All rights reserved.
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