Palladium(0)-catalyzed arylation of 1H-1,2,3-benzotriazole (BTA) in water at 100°C with diaryliodonium salts proceeds in the presence of copper salt regioselectively at N-1 position. Best result has been obtained with the Pd(OAc)2(tppts)2 as catalyst and the Cu(II) phenylcyclopropylcarboxylate as co-catalyst. Both aryl groups from diaryliodonium salt participate in the reaction.
|Publication status||Published - 30 Jul 1998|
Beletskaya, I. P., Davydov, D. V., & Moreno-Mañas, M. (1998). Pd- and Cu-catalyzed selective arylation of benzotriazole by diaryliodonium salts in water. Tetrahedron Letters, 39(31), 5621-5622. https://doi.org/10.1016/S0040-4039(98)01063-6