Synthesis of 1-amino-2-vinylcyclopropane-1-phosphinates. Conversion of a phosphonate to phosphinates
作者:Hyung-Jung Pyun、Michael O. Clarke、Aesop Cho、Anthony Casarez、Mingzhe Ji、Maria Fardis、Richard Pastor、X. Christopher Sheng、Choung U. Kim
DOI:10.1016/j.tetlet.2012.02.111
日期:2012.5
Conversion of diethyl 1-amino-2-vinylcyclopropanephosphonate to ethyl 1-amino-2-vinylcyclopropanephosphinate was accomplished by using either nucleophilic or electrophilic carbon reagents. Hydrolysis of the phosphonate diethyl ester to the mono acid followed by oxalyl chloride treatment provided the phosphonomonochloridate, which was treated with nucleophilic organometallic agents to afford phosphinate
通过使用亲核或亲电碳试剂,将1-氨基-2-乙烯基环丙烷膦酸二乙酯转化为1-氨基-2-乙烯基环丙烷膦酸乙酯。将膦酸酯二乙酯水解为单酸,然后进行草酰氯处理,得到膦酰单氯酸酯,将其用亲核有机金属试剂处理,得到次膦酸酯乙酯。或者,将氯化物还原为亚磷酸乙酯,然后用各种亲电性烷基化剂烷基化以获得次膦酸酯乙酯。