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Samarium(III) Triflate as an Efficient and Reusable Catalyst for Facile Synthesis of Benzoxazoles and Benzothiazoles in Aqueous Medium
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2013
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Chemical EngineeringAqueous MediumDerivativesEngineeringEfficient MethodNatural SciencesFacile SynthesisDiversity-oriented SynthesisReusable Acid CatalystGreen ChemistryReusable CatalystOrganic ChemistryCatalysisChemistrySynthesis MethodSamarium TriflateSynthetic ChemistryCatalytic Synthesis
A simple, green, and efficient method is presented for the synthesis of benzoxazoles and benzothiazoles from reaction of <i>o</i>-aminophenols, <i>o-</i>aminothiophenols, and aliphatic or aromatic aldehydes using samarium triflate as a reusable acid catalyst under mild reaction conditions in aqueous medium.