Syntheses of N-protected β-trifluoromethyl-β-amino
acids, γ-trifluoromethyl-γ-amino acids, δ-trifluoromethyl-δ-amino acids,
and β-trifluoromethyl-β-amino-α-hydroxy
acids (4,4,4-trifluoroisothreonine) starting from N-acyl-1-chloro-2,2,2-trifluoroethylamines
are described.
ω-amino acids - Grignard reactions - organometallic
reagents - oxidations - ozonolysis