反応 #74208

反応方程式

lithiumbis(trimethylsilyl)amide

5-bromobenzimidazole

4-methylbenzylamine

THF

2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl

→

N-(4-Methylbenzyl)-3H-benzo[d]imidazol-5-amine

反応条件

後処理

1. 1
   その他The compound was synthesized
2. 2
   その他rt 11.87 min (96.2%)

実験手順

The compound was synthesized starting from 5-bromobenzimidazole (200 mg; 1 mmol; 1 eq.), 4-methylbenzylamine (145 mg; 1.2 mmol; 1.2 eq.), 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (9 mg; 0.024 mmol; 0.024 eq.; 2.4 mol %), Pd2 dba3 (9 mg; 0.01 mmol; 0.01 eq.; 1 mol %) and lithiumbis(trimethylsilyl)amide 1 M in THF (2.2 ml; 2.2 mmol; 2.2 eq.) according to method 1; Yield: 0.058 g (24.5%); MS m/z: 238.3 [M+H]+; 1H-NMR (500 MHz, DMSO d6): δ 2.24 (s, 3H); 4.21 (s, 2H); 5.97 (br s, 1H); 6.49 (s, 1H); 6.59 (dd, 1H, 4J=1.8 Hz, 3J=8.5 Hz); 7.08-7.10 (m, 2H); 7.24-7.26 (m, 3H); 7.82 (s, 1H); 11.82 (br s, 1H); HPLC (METHOD [A]): rt 11.87 min (96.2%)

出典