Thionyl Chloride → 5-Amino-1-(6-chloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran-5-yl)-4-trifluoromethylsulfenylpyrazole

HRID 1871567ノート

反応式

HRID 1871567 の反応式
[NH2:1][C:2]1[N:6]([C:7]2[CH:8]=[C:9]3[C:13](=[CH:14][C:15]=2[Cl:16])[C:12]([F:18])([F:17])[O:11][C:10]3([F:20])[F:19])[N:5]=[CH:4][CH:3]=1.[F:21][C:22]([F:27])([F:26])[S:23]([O-])=O.[Na+].S(C1C=CC(C)=CC=1)(O)(=O)=O.CNC.S(Cl)(Cl)=O>C1(C)C=CC=CC=1.O>[NH2:1][C:2]1[N:6]([C:7]2[CH:8]=[C:9]3[C:13](=[CH:14][C:15]=2[Cl:16])[C:12]([F:18])([F:17])[O:11][C:10]3([F:20])[F:19])[N:5]=[CH:4][C:3]=1[S:23][C:22]([F:27])([F:26])[F:21]

参加物

7

反応物 4

HCID 24386Thionyl ChlorideHCID 12199009Dimethylamine p-toluenesulfonateHCID 186915105-Amino-1-(6-chloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran-5-yl)pyrazoleHCID 23690734Sodium trifluoromethanesulfinate

生成物 1

HCID 186915325-Amino-1-(6-chloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran-5-yl)-4-trifluoromethylsulfenylpyrazole収率 38.6%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 1140Toluene溶媒

反応条件

温度
55 °C

実験手順

To a suspension wherein 5-amino-1-(6-chloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran-5-yl)pyrazole (391 mg, 1.27 mmol), sodium trifluromethanesulfinate (397 mg, 2.54 mmol) and dimethylamine tosylate (690 mg, 3.17 mmol) are in toluene (4 ml), thionyl chloride (302 mg, 2.54 mmol) was added dropwise under ice cooling over a period of about 10 minutes and then stirred under heating at 50 to 60° C. for 14 hours. After allowing to cool, the reaction solution was poured into water, extracted with ethyl acetate, and the organic layer was dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure and the residue was subjected to silica gel column chromatography to give 200 mg of 5-amino-1-(6-chloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran-5-yl)-4-trifluoromethylsulfenylpyrazole.

後処理

  1. temperatureto cool
  2. extractionextracted with ethyl acetate
  3. dry with materialthe organic layer was dried over anhydrous magnesium sulfate
  4. distillationThe solvent was distilled off under reduced pressure

出典と根拠

ORDレコード
ord-180381f3d4aa4e70b4c250ade5eca81e
出典データセット
uspto-grants-2000_08
特許番号
US06103750

反応ノート

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