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Thionyl Chloride → 5-Amino-1-(5-chloro-2,2,3,3-tetrafluoro-2,3-dihydrobenzofuran-6-yl)-3-cyano-4-trifluoromethylsulfenylpyrazole

HRID 1871561
ノート
印刷プレビュー

反応式

HRID 1871561 の反応式
[NH2:1][C:2]1[N:6]([C:7]2[C:19]([Cl:20])=[CH:18][C:10]3[C:11]([F:17])([F:16])[C:12]([F:15])([F:14])[O:13][C:9]=3[CH:8]=2)[N:5]=[C:4]([C:21]#[N:22])[CH:3]=1.[F:23][C:24]([F:29])([F:28])[S:25]([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[C:19]([Cl:20])=[CH:18][C:10]3[C:11]([F:17])([F:16])[C:12]([F:15])([F:14])[O:13][C:9]=3[CH:8]=2)[N:5]=[C:4]([C:21]#[N:22])[C:3]=1[S:25][C:24]([F:29])([F:28])[F:23]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 24386Thionyl ChlorideHCID 12199009Dimethylamine p-toluenesulfonateHCID 186915305-Amino-1-(5-chloro-2,2,3,3-tetrafluoro-2,3-dihydrobenzofuran-6-yl)-3-cyanopyrazoleHCID 23690734Sodium trifluoromethanesulfinate

生成物 1

HCID 186915255-Amino-1-(5-chloro-2,2,3,3-tetrafluoro-2,3-dihydrobenzofuran-6-yl)-3-cyano-4-trifluoromethylsulfenylpyrazole収率 23.1%

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-(5-chloro-2,2,3,3-tetrafluoro-2,3-dihydrobenzofuran-6-yl)-3-cyanopyrazole (665 mg, 2.00 mmol), sodium trifluoromethanesulfinate (624 mg, 4.00 mmol) and dimethylamine tosylate (1.086 g, 5.00 mmol) are in toluene (5 ml), thionyl chloride (476 mg, 2.00 mmol) was added dropwise under ice cooling over a period of about 10 minutes and stirred at 50 to 60° C. for 10 minutes. After allowing time 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-(5-chloro-2,2,3,3-tetrafluoro-2,3-dihydrobenzofuran-6-yl)-3-cyano-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-c171accb5b514d0cbf67ef515ea3281d
出典データセット
uspto-grants-2000_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06103750

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート