Pramanik Mukund M D, Chaturvedi Atul Kumar, Rastogi Namrata
Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India.
Chem Commun (Camb). 2014 Nov 4;50(85):12896-8. doi: 10.1039/c4cc05684a.
We report a substituent controlled nucleophilic displacement of alkyl bromides with Bestmann-Ohira reagent yielding either dimethyl diazoalkylphosphonates or (E)-vinylphosphonates. The dimethyl diazoalkylphosphonates could be readily converted into corresponding (E)-vinylphosphonates in the presence of Cu following nitrogen elimination in quantitative yields.
我们报道了一种由取代基控制的、用贝斯特曼-大平试剂对烷基溴进行亲核取代反应,生成二甲基重氮烷基膦酸酯或(E)-乙烯基膦酸酯。在铜存在下,二甲基重氮烷基膦酸酯在消除氮后能定量地转化为相应的(E)-乙烯基膦酸酯。