Desulfurization strategy in the construction of azoles possessing additional nitrogen, oxygen or sulfur using a copper (I) catalyst

…, SK Rout, A Gogoi, S Nandi, KK Ghara…

Index: Guin, Srimanta; Rout, Saroj Kumar; Gogoi, Anupal; Nandi, Shyamapada; Ghara, Krishna Kanta; Patel, Bhisma K. Advanced Synthesis and Catalysis, 2012 , vol. 354, # 14-15 p. 2757 - 2770

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Citation Number: 7

Abstract

Abstract A tandem and convergent approach to various N-, O-, or S-containing azoles has been developed by exploiting the thiophilic property of copper (I) iodide used in a catalytic quantity. The present protocol gives access to amino-substituted tetrazoles, triazoles, oxadiazoles and thiadiazoles via oxidative desulfurization of their respective precursors followed by inter-or intramolecular attack of suitable nucleophiles. For aminotetrazoles ...