TETRAHEDRON, vol.58, no.40, pp.8055-8058, 2002 (SCI-Expanded)
A convenient new method for the arylation of furan and thiophene with arylhydrazine and manganese(III) acetate is described. Oxidation of arylhydrazines with Mn(III) acetate in furan or thiophene affords the corresponding 2-aryl-substituted furans and thiophenes in good yield using commercially available materials; access to 2-substituted heterobiaryls works selectively, and coupling occurs with loss of the hydrazine moiety. (C) 2002 Elsevier Science Ltd. All rights reserved.