A Metal-Free Synthesis of 3-Phenoxyimidazo Heterocycles by Catalytic Oxidative Cyclization of 2-Amino-azaarenes with Lignin Models
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DOI: 10.1055/s-0037-1610139
Abstract: A metal-free catalytic oxidative cyclization of 2-aminopyridines and 2-aminobenzothiazole with lignin model 2-phenoxyacetophenones was developed, in which inexpensive iodine was used as the catalyst and tert-butyl hydroperoxide (TBHP) was the oxidant. The reaction proceeded smoothly… read more here.
Keywords: catalytic oxidative; free synthesis; phenoxyimidazo; metal free ... See more keywords