Synthesis of fluorinated α-amino ketones part I: α-benzamidoalkyl mono- di- and trifluoromethyl ketones
作者:Michael Kolb、Jacqueline Barth、Bernhard Neises
DOI:10.1016/s0040-4039(00)84319-1
日期:1986.1
2-Phenyl-5(4H)-oxazolones, obtained from α-amino acids, are reacted with di- and trifluoro acetic anhydride by a modified Dakin-West procedure to yield in a one-pot reaction α-benzamidoalkyl-di- and trifluoromethyl ketones in good yields. The monofluoromethyl analogues were also prepared from α-amino acids, however the use of the highly toxic fluoroacetic anhydride was avoided. The key step is the