Tetrahedron Letters

Palladium/P (t-Bu) 3-catalyzed synthesis of N-aryl azoles and application to the synthesis of 4, 4′, 4′′-tris (N-azolyl) triphenylamines

M Watanabe, M Nishiyama, T Yamamoto, Y Koie

Index: Watanabe, Makoto; Nishiyama, Masakazu; Yamamoto, Toshihide; Koie, Yasuyuki Tetrahedron Letters, 2000 , vol. 41, # 4 p. 481 - 483

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Citation Number: 144

Abstract

Palladium/P (t-Bu) 3 catalyzed the coupling of aryl halides with azoles such as pyrrole, indole, and carbazole, effectively. K2CO3 and Rb2CO3 worked very well as bases, whereas Cs2CO3 and t-BuONa gave only trace yields of products. Triazolyl compounds such as TCTA were also synthesized.