K. Burger et al., 3,3,3-TRIFLUORO-2-ISOCYANOPROPIONATES, NEW VERSATILE BUILDING-BLOCKS FOR THE INTRODUCTION OF TRIFLUOROMETHYL GROUPS INTO ORGANIC-MOLECULES, Journal of fluorine chemistry, 65(1-2), 1993, pp. 149-152
alpha-Trifluoromethyl-substituted alpha-amino acid esters 1 give N-for
myl alpha-trifluoromethyl alpha-amino acid esters 2 on reaction with f
ormic acid/acetic anhydride. 3,3,3-Trifluoro-2-isocyanopropionates 3 a
re obtained from 2 upon treatment with diphosgene/triethylamine.