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Updated: Jun 5, 2026
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
4-(4-Chloro-phen-yl)-5-(4-nitro-phen-yl)-3-phenyl-4H-1,2,4-triazole
Abstract:
The title compound, C(20)H(13)ClN(4)O(2), was synthesized by the condensation of 4-nitro-benzohydrazide and N-(4-chlorophen-yl)-benzimidoyl chloride in N,N-dimethyl-acetamide. The asymmetric unit contains two independent mol-ecules. In one molecule, the triazole ring is oriented at dihedral angles of 23.1 (5), 85.4 (1) and 10.5 (1)° with respect to the phenyl, chlorophenyl and nitrophenyl rings, respectively. In the other molecule, the corresponding dihedral angles are 29.8 (9), 73.4 (7) and 16.4 (3)°.
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