N-Aryl-C-nitroazoles. 1. C-nitro-N-phenylazoles (Review)

Several synthetic approaches to differently substituted nitroazoles and their applications have been described in the literature. Recently, some N-aryl-C-nitroazoles proved to be promising antibacterial and antiprotozoal agents, as well as explosives. However, their synthesis and applications are not well developed. Syntheses of N-aryl-C-nitroazoles are reviewed here for the first time. Part 1 is devoted to synthesis of C-nitro-N-phenylazoles treated in this review as parent compounds. Procedures of selected compounds have been given and their properties verified. Part 2 will contain related information on the derivatives containing additional substituents in one or both aromatic rings. In Part 3, N-aryl group in C-nitroazoles will be replaced by an N-heteroaryl substituent. Nonaromatic compounds and nitroazoles containing a ring heteroatom other than nitrogen will not be included in the review.