Thermal cyclocondensations of 3-N (4-and 5-benzimidazolyl and benztriazolyl) amino derivatives of 2-propenoic acid

V Milata, D Ilavský

Index: Milata, Viktor; Ilavsky, Dusan Collection of Czechoslovak Chemical Communications, 1987 , vol. 52, # 12 p. 2918 - 2925

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Citation Number: 12

Abstract

Abstract The cyclization of 3-N (4-and 5-benzimidazolyl and benztriazolyl) amino-2-cyano- and 2-ethoxycarbonyl-2-propenoate esters Ia, b-IVa, b under the conditions of the Gould- Jacobs reaction leads to angularly ring-fused substituted imidazo or triazolo [4, 5-f](V, VI) and [4, 5-h](VII, VIII) quinolines, respectively. The esters Vb-VIIIb have been transformed into the corresponding chloroderivatives Vc-VIIIc. 3-N (5-Benzimidazolyl and 5-benztriazolyl) ...