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论文类型：期刊论文

发表时间：2016-06-15

发表刊物：TETRAHEDRON LETTERS

收录刊物：SCIE、Scopus

卷号：57

期号：24

页面范围：2633-2637

ISSN号：0040-4039

关键字：Metal-free; alpha/beta-Unsaturated carbonyl compounds; Sulfonyl hydrazides; Iodine catalysis; Pyrazoles

摘要：A facile and expeditious method for the synthesis of 1H-pyrazoles by the reaction of alpha,beta-unsaturated aldehydes/ketones and sulfonyl hydrazide catalyzed by as low as 2 mol % I-2 has been demonstrated. This synthetic system features simple operation and mild reaction conditions, and displays a broad functional group tolerance furnishing good to excellent yields. (C) 2016 Elsevier Ltd. All rights reserved.