[1,5]Sigmatropic shift of hydrogen in amination of 3-pyrrolidino-1,2,4-triazine 4-oxide
作者:Oleg N. Chupakhin、Valery N. Kozhevnikov、Dmitry N. Kozhevnikov、Vladimir L. Rusinov
DOI:10.1016/s0040-4039(99)01211-3
日期:1999.8
The reaction of 3-pyrrolidino-1,2,4-triazine 4-oxide with ammonia leads to the product of tele-substitution of pyrrolidine - 5-amino-1,2,4-triazine 4-oxide. Sigmatropic shift of hydrogen postulated for such reactions has been proved by isolation of key intermediates.
The amidine rearrangement in 5-amino-6-aryl-1,2,4-triazine-4-oxides initiated by hydroxylamine
作者:Oleg N Chupakhin、Valery N Kozhevnikov、Anton M Prokhorov、Dmitry N Kozhevnikov、Vladimir L Rusinov
DOI:10.1016/s0040-4039(00)01245-4
日期:2000.9
Addition of hydroxylamine at the 3 position of 6-aryl-5-amino-1,2,4-triazine-4-oxides initiates the amidine rearrangement resulting in 6-aryl-5-hydroxylamine-1,2,4-triazines, as confirmed by an experiment with N-15-labeling. (C) 2000 Published by Elsevier Science Ltd.