文摘
Trimethyl-[(Z)-2,3,3,3-tetrafluoro-1-propenyl]ammonium iodide (1) easily liberated methyl iodide at 70 °C in an aprotic polar solvent to generate quantitatively N,N-dimethyl-[(Z)-2,3,3,3-tetrafluoro-1-propenyl]amine (2a), which underwent the N-N exchange reaction with secondary amines, leading stereoselectively to the corresponding N,N-dialkyl-[(Z)-2,3,3,3-tetrafluoro-1-propenyl]amines (2b-k) in good yields.