Tetrahedron letters

A clay-mediated eco-friendly thiocyanation of indoles and carbazoles

M Chakrabarty, S Sarkar

Index: Chakrabarty, Manas; Sarkar, Sandipan Tetrahedron Letters, 2003 , vol. 44, # 44 p. 8131 - 8133

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Citation Number: 56

Abstract

Indoles 1a–f and carbazoles 3a–c on treatment with ammonium thiocyanate on montmorillonite K10 clay at 80° C furnished the corresponding 3-thiocyanato derivatives 2a– f and 4a–c in good to high yields. Skatole 5 furnished the dimeric oxindole 6, which resulted from autoxidation.