1: 60 percent / (PPh3)4Pd / 5 h / 80 °C / var. 2-bromoallyl carbonates; other secondary and tertiary cyclic amines, var. Pd catalysts 2: pyrrolidine, triphenylphospine / palladium acetate View Scheme

tetrakis(triphenylphosphine) palladium(0) T=80°C; 5 h;