作者:Thomas Schrader、Reiner Kober、Wolfgang Steglich
DOI:10.1055/s-1986-31638
日期:——
Synthesis of 1-Aminophosphonic Acid Derivatives via Acyliminophosphonic Esters 1-Acylaminomethylphosphonates 1 on reaction with N-bromosuccinimide yield 1-acylamino-1-bromomethylphosphonates 2, which on treatment with tertiary amines are converted into acyliminophosphonates 3. The latter react in situ with nucleophiles like enamines, ynamines, aryl, alkenyl and alkynyl Grignard compounds to give derivatives of 1-acylaminomethylphosphonates. Reaction of bromides 2 with phosphites and triphenylphosphine yields compounds of type 8 and 10, respectively.
通过酰亚胺基膦酸酯合成 1-氨基膦酸衍生物 1-酰氨基甲基膦酸酯 1 与 N-溴代丁二酰亚胺反应生成 1-酰氨基-1-溴甲基膦酸酯 2,后者与叔胺处理后转化为酰亚胺基膦酸酯 3。后者与烯胺、炔胺、芳基、烯基和炔基格氏化合物等亲核物发生原位反应,生成 1-酰氨基甲基膦酸盐的衍生物。 溴化物 2 与亚磷酸盐和三苯基膦反应分别生成 8 型和 10 型化合物。