Methodology for asymmetric synthesis of CF3‐β‐proline and CF3‐6‐membered cyclic amino acids has been developed starting from readily available N‐tert‐butanesulfinyl‐(3,3,3)‐trifluoroacetald‐imine. The Zn‐mediated allylation followed by the intramolecular 5‐endo‐trig cyclisation afforded the CF3‐β‐proline, whereas the CF3‐6‐membered cyclic amino acids were obtained using a ring closing metathesis protocol of CF3‐aminodienes.