Nucleophilic substitution of hydrogen in the reaction of 1,2,4-triazin-4-oxides with cyanamide
作者:V. N. Kozhevnikov、A. M. Prokhorov、D. N. Kozhevnikov、V. L. Rusinov、O. N. Chupakhin
DOI:10.1007/bf02494908
日期:2000.6
It was shown that cyanamide can successfully be used in reactions of nucleophilic substitution of hydrogen with 1,2,4-triazin-4-oxides in the presence of a base to give 5-cyanoimino-1,2,4-triazines. It was found by C-13 NMR spectroscopy that these compounds and their alkylation products at the cyclic nitrogen atom exist in the form of 5-cyanoimino-2,5-dihydro-1,2,4-triazines.