Trifluoromethylsulfinylchloride → 5-amino-1-(2-chloro-6-fluoro-4-(trifluoromethyl)phenyl)-4-(trifluoromethylsulfinyl)-1H-pyrazole-3-carbonitrile

HRID 1429000ノート

反応式

HRID 1429000 の反応式
[NH2:1][C:2]1[N:6]([C:7]2[C:12]([F:13])=[CH:11][C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][C:8]=2[Cl:18])[N:5]=[C:4]([C:19]#[N:20])[CH:3]=1.S(C1C=CC(C)=CC=1)(O)(=O)=O.CNC.[C:35]([S:39](Cl)=[O:40])([F:38])([F:37])[F:36]>C1(C)C=CC=CC=1>[NH2:1][C:2]1[N:6]([C:7]2[C:12]([F:13])=[CH:11][C:10]([C:14]([F:16])([F:15])[F:17])=[CH:9][C:8]=2[Cl:18])[N:5]=[C:4]([C:19]#[N:20])[C:3]=1[S:39]([C:35]([F:38])([F:37])[F:36])=[O:40]

参加物

5

反応物 3

HCID 11008121TrifluoromethylsulfinylchlorideHCID 12199009Dimethylamine p-toluenesulfonateHCID 684093715-amino-1-(2-chloro-6-fluoro-4-(trifluoromethyl)-phenyl)-1H-pyrazole-3-carbonitrile

生成物 1

HCID 898587905-amino-1-(2-chloro-6-fluoro-4-(trifluoromethyl)phenyl)-4-(trifluoromethylsulfinyl)-1H-pyrazole-3-carbonitrile収率 64.6%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

反応条件

温度
40 °C

実験手順

To a solution of 5-amino-1-(2-chloro-6-fluoro-4-(trifluoromethyl)phenyl)-1H-pyrazole-3-carbonitrile (140 g, 459.6 mmol, 1.00 eq.) and dimethylamine tosylate (151.8 g, 698.6 mmol, 1.52 eq.) in toluene (840 mL) was added CF3SOCl (89.7 g, 588.3 mmol, 1.28 eq.). After the mixture was stirred at 40° C. for 16 h, nitrogen was bubbled through the solution and the solution was cooled to rt. Then the mixture was poured into 2 L ice/water and stirred at 0° C. for 1 h. The precipitated solid was isolated by filtration and dried under vacuum. The solid was recrystallized with toluene to give 5-amino-1-(2-chloro-6-fluoro-4-(trifluoromethyl)phenyl)-4-(trifluoromethylsulfinyl)-1H-pyrazole-3-carbonitrile (125 g, 64%) as yellow solid.

後処理

  1. customnitrogen was bubbled through the solution
  2. temperaturethe solution was cooled to rt
  3. additionThen the mixture was poured into 2 L ice/water
  4. stirringstirred at 0° C. for 1 h
  5. customThe precipitated solid was isolated by filtration
  6. customdried under vacuum
  7. customThe solid was recrystallized with toluene

出典と根拠

ORDレコード
ord-574084f2cfb3495da39d63f838e3a4f1
出典データセット
uspto-grants-2015_01
特許番号
US08937185B2

反応ノート

読み込み中…