As. Kiselyov et C. Dominguez, A novel synthesis of 3,4-disubstituted cinnolines from o-trifluorophenyl hydrazones, TETRAHEDR L, 40(28), 1999, pp. 5111-5114
An efficient synthesis of 3-aryl-4-aminocinnolines from ortho-trifluorometh
ylphenyl hydrazones is described. The mechanism of the described transforma
tion is likely to involve the formation of the quinone methide intermediate
. The described procedure is easily adaptable to automated solid phase synt
hesis leading to analytically pure heterocycles. (C) 1999 Elsevier Science
Ltd. All rights reserved.