Trifluoromethylated heterocycles from β-trifluoroacetyl-lactams and -benzolactams
Trifluoromethyl substituted heterocycles have been prepared by condensation of the new β-trifluoroacetyl-lactams 1 and -benzolactams 2 with methylhydrazine and benzamidine as bis-nucleophiles without opening of the lactam structure.