Synthesis of N-substituted α,α-difluoro-β-aminophosphonates by addition of diethyl lithiodifluoromethylphosphonate to imines
作者:Prabhakar Cherkupally、Petr Beier
DOI:10.1016/j.jfluchem.2012.06.004
日期:2012.9
Addition of diethyl lithiodifluoromethylphosphonate to N-substituted imines provides N-substituted α,α-difluoro-β-aminophosphonates. N-Alkyl, aryl, or Boc substituted aldimines give good to high yields in these reactions, while in ketimine series, only activated N-(2,2,2-trifluoro-1-phenylethylidene)aniline showed high reactivity.
将二乙基硫代二氟甲基膦酸酯加到N-取代的亚胺上,得到N-取代的α,α-二氟-β-氨基膦酸酯。在这些反应中,N-烷基,芳基或Boc取代的亚胺具有良好的高收率,而在酮亚胺系列中,只有活化的N-(2,2,2-三氟-1-苯乙叉基)苯胺显示出高反应活性。