Novel routes to aminophosphonic acids: Interaction of dimethyl H-phosphonate with hydroxyalkyl carbamates
作者:K. Troev、N. Koseva、G. Hägele
DOI:10.1002/hc.20404
日期:2008.3
It was found that the reaction of dimethyl H-phosphonate (1) with 2-hydroxyalkyl-N-2′-hydroxyalkyl carbamates at 135°C includes several chemical reaction steps: (i) chemical transformations of 1-methyl-2-hydroxyethyl-N-2′-hydroxyethyl carbamate (2) and 2-methyl-2-hydroxyethyl-N-2′-hydroxyethyl carbamate (3); (ii) transesterification of dimethyl H-phosphonate with 2 and 3, and with secondary hydroxyl-containing
发现 H-膦酸二甲酯 (1) 与 2-羟烷基-N-2'-羟烷基氨基甲酸酯在 135°C 的反应包括几个化学反应步骤: (i) 1-甲基-2-羟乙基- N-2'-羟乙基氨基甲酸酯(2)和2-甲基-2-羟乙基-N-2'-羟乙基氨基甲酸酯(3);(ii) H-膦酸二甲酯与 2 和 3 以及在 2-羟烷基-N-2'-羟烷基氨基甲酸酯的化学转化过程中形成的含仲羟基化合物的酯交换反应;(iii) 1 和 H-膦酸二烷基酯的水解,通过 1 与含仲羟基化合物的酯交换反应形成。通过 1H、13C、31P NMR 和 FAB 质谱法研究了相互作用。© 2008 Wiley Periodicals, Inc. 杂原子化学 19:119–124, 2008; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20404