Microwave-activated synthesis is a special and remarkable technique in modern synthetic organic chemistry. In the current research, it described microwave-assisted of 2-aryl-4,5-dicarbonitrile imidazole derivatives via one-step reaction between aromatic aldehydes 2,3-diaminomaleonitrile (DAMN) using HNO3 as metal-free catalyst strong oxidizing agent. The present methodology has significant adva...

In the title tricyano-nitrile compound, C(8)H(5)N(5), the N-substituted cyano-ethyl group is offset to the imidazole ring [dihedral angle = 75.41 (15)°].

In each of the two independent indene-4-spiro-pentane mol-ecules in the asymmetric unit of the title 2:1 adduct, C(19)H(18)N(6)·0.5C(5)H(4)OS, the cyclo-hexene ring adopts a half-chair conformation and the cyclo-pentene and cyclo-pentane rings adopt envelope conformations. The mean plane through the cyclo-hexene/cyclo-pentene fused system is aligned at a dihedral angle of 77.9 (1)° with respect...