Iodine-promoted synthesis of pyrazoles from 1,3-dicarbonyl compounds and oxamic acid thiohydrazides
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DOI: 10.1039/d0qo00476f
Abstract: A novel approach to the synthesis of 3,4-dicarbonyl-substituted pyrazoles from a wide range of 1,3-dicarbonyl compounds and oxamic acid thiohydrazides was developed via iodine-promoted cascade imination/halogenation/cyclization/ring contraction reaction accompanied by sulfur elimination. This procedure provides… read more here.
Keywords: oxamic acid; acid thiohydrazides; iodine promoted; synthesis ... See more keywords