Preparation of 1-aminoalkylphosphonic acids and 2-aminoalkylphosphonic acids by reductive amination of oxoalkylphosphonates
作者:Artur Ryglowski、Pawel Kafarski
DOI:10.1016/0040-4020(96)00590-x
日期:1996.8
By reacting dialkyl 1-oxo- or 2-oxoalkylphosphonates with benzhydrylamine followed by reduction with triacetoxyborohydride and acid hydrolysis gave corresponding aminoalkylphosphonic acids with satisfactory yields. The use of benzylamine, α-methylbenzylamine and tritylamine was unsuccessful in the case of dialkyl 1-oxoalkylphosphonates whereas conversion of 2-oxoalkylphosphonates was also achieved
通过使1-氧代-或2-氧代烷基膦酸二烷基酯与苯甲基胺反应,然后用三乙酰氧基硼氢化物还原并进行酸水解,以令人满意的产率得到相应的氨基烷基膦酸。在1-氧代烷基膦酸二烷基酯的情况下,苄基胺,α-甲基苄基胺和三苯甲基胺的使用是不成功的,而2-氧代烷基膦酸酯的转化率也较低,但仍可实现。