difluoro-β-amino esters were synthesized via Reformatsky reaction of fluorinated ethyl bromoacetates with N-(α-aminoalkyl)benzotriazoles. Secondary and tertiary amines are easily formed, but primary amines can only be made in the difluorinated case. This approach has led to the first synthesis of di- and tetrafluorinated bis(β-amino esters).
通过
氟化
溴代
乙酸乙酯与N-(α-
氨基烷基)苯并三唑的Reformatsky反应合成了单和二
氟-β-
氨基酯。仲胺和叔胺很容易形成,但
伯胺只能在二
氟化情况下制备。该方法导致了第一和第二
氟化双(β-
氨基酯)的合成。