反应条件
1: ammonia 2: acid 3: 89 percent / K2CO3, NaI, CuI / dimethylformamide / 12 h 4: 92 percent / CBr4, PPh3 / CH2Cl2 / 1 h / Ambient temperature 5: 89 percent / K2CO3, NaI, CuI / dimethylformamide / 40 °C 6: 65 percent / H2, (CH2NH2)2 / P-2 Ni / ethanol View Scheme