A method for the synthesis of bi-, ter-, and quaterpyrazoles by cyclization of C-(diformylmethyl)nitropyrazoles with hydrazine has been elaborated. Some of their C- and N-derivatives have been obtained. The compounds prepared have been characterized by H-1, C-13, N-14, and N-15 NMR spectra.
作者:S. A. Shevelev、I. L. Dalinger、T. K. Shkineva、B. I. Ugrak
DOI:10.1007/bf00699003
日期:1993.11
A method for the synthesis of bi-, ter-, and quaterpyrazoles by cyclization of C-(diformylmethyl)nitropyrazoles with hydrazine has been elaborated. Some of their C- and N-derivatives have been obtained. The compounds prepared have been characterized by H-1, C-13, N-14, and N-15 NMR spectra.