反応 #939

反応方程式

EtOAc

2-[(3,5-Dimethylphenyl)sulfinyl]-6-fluorobenzonitrile

ammonia

→

2-amino-6-[(3,5-dimethylphenyl)sulfinyl]benzonitrile

収率 61.0%

溶媒

methanol

反応条件

後処理

1. 1
   workup.ADDITIONwas added
2. 2
   温度the mixture was heated to 150° C. in a sealed Parr bomb for 24 h

実験手順

2-[(3,5-Dimethylphenyl)sulfinyl]-6-fluorobenzonitrile (Example 19) (0.4 g, 1.5 mmol) was dissolved in 40 ml of methanol and chilled to -78° C. Condensed ammonia (20 ml, 15.4 g, 905 mmol) was added and the mixture was heated to 150° C. in a sealed Parr bomb for 24 h. Chromatography on silica gel (flash; Hex/EtOAc 1:1) provided 0.24 g (61%) of 2-amino-6-[(3,5-dimethylphenyl)sulfinyl]benzonitrile: mp 190°-191° C.; NMR (Me2SO-d6, 200 MHz) δ 2.32 (s, 6H), 6.48 (br s, 2H), 6.90 (apparent d, 1H), 7.11 (apparent d, 1H), 7.20 (m, 1H), 7.32 (m, 2H), 7.52 (apparent t, 1H); mass spec (CI) M+ +1=271. Anal. Calc. for C15H14N2OS: C, 66.64; H, 5.22; N, 10.36; S, 11.86. Found: C, 66.71; H, 5.27; N, 10.32; S, 11.84.

出典