Copper-doped silica cuprous sulfate (CDSCS) as a highly efficient heterogeneous nano catalyst for synthesis of 3, 5-disubstituted isoxazoles

MNS Rad, S Behrouz, MA Faghihi

Index: Soltani Rad; Behrouz; Faghihi Journal of the Iranian Chemical Society, 2014 , vol. 11, # 2 p. 361 - 367

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Citation Number: 6

Abstract

Abstract A facile and highly efficient protocol for 1, 3-dipolar cycloaddition of in situ generated nitrile oxides with terminal alkynes catalyzed by copper-doped silica cuprous sulfate (CDSCS) as a new and convenient heterogeneous nano catalyst is described. In this protocol,'click'cycloaddition of various structurally diverse alkynes and imidoyl chlorides in the presence of CDSCS and NaHCO 3 in a solution of i-PrOH/H 2 O (1: 1, V/V) furnishes ...