Synthesis of novel 1-[(1-ethoxymethylene)amino]imidazol-5(4H)-ones and 1,2,4-triazin-6(5H)-ones from optically active α-aminocarboxylic acid hydrazides
作者:Agnieszka Kudelko、Wojciech Zieliński、Karolina Jasiak
DOI:10.1016/j.tetlet.2013.06.052
日期:2013.8
New derivatives of 1-[(1-ethoxymethylene)amino]imidazol-5(4H)-one and 1,2,4-triazin-6(5H)-one were synthesized via reactions of optically active α-aminocarboxylic acid hydrazides and triethyl orthoesters in xylene. The factors influencing the formation of the unexpected five-membered products and attempts to elucidate the mechanism are discussed.
通过光学活性α-氨基羧酸酰肼的反应合成了新的1-[(1-乙氧基亚甲基)氨基]咪唑-5(4 H)-one和1,2,4-三嗪-6(5 H)-one的衍生物。二甲苯中的原酸酯和三乙基原酸酯。讨论了影响意外五元产品形成的因素,并试图阐明其机理。