1,2-Dichlorobenzene → 5-[3-chloro-4-(5-trifluoromethylpyridine-2-yloxy)phenyl]-3-(2,6-difluorophenyl)-1-methyl-1H-1,2,4-triazole

HRID 1940735ノート

反応式

HRID 1940735 の反応式
[CH3:1][N:2](S(C1C=CC=CC=1)(=O)=O)[N:3]=[C:4](Cl)[C:5]1[C:10]([F:11])=[CH:9][CH:8]=[CH:7][C:6]=1[F:12].[Cl:23][C:24]1[CH:25]=[C:26]([CH:29]=[CH:30][C:31]=1[O:32][C:33]1[CH:38]=[CH:37][C:36]([C:39]([F:42])([F:41])[F:40])=[CH:35][N:34]=1)[C:27]#[N:28].ClC1C=CC=CC=1Cl>C(Cl)(Cl)Cl.[Fe](Cl)(Cl)Cl>[Cl:23][C:24]1[CH:25]=[C:26]([C:27]2[N:2]([CH3:1])[N:3]=[C:4]([C:5]3[C:6]([F:12])=[CH:7][CH:8]=[CH:9][C:10]=3[F:11])[N:28]=2)[CH:29]=[CH:30][C:31]=1[O:32][C:33]1[CH:38]=[CH:37][C:36]([C:39]([F:40])([F:41])[F:42])=[CH:35][N:34]=1

参加物

6

反応物 3

HCID 72391,2-DichlorobenzeneHCID 214636733-Chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrileHCID 53707170N-methyl-N-(benzenesulfonyl)-2,6-difluorobenzohydrazonoyl chloride

生成物 1

HCID 214636745-[3-chloro-4-(5-trifluoromethylpyridine-2-yloxy)phenyl]-3-(2,6-difluorophenyl)-1-methyl-1H-1,2,4-triazole収率 53.7%

試薬・触媒・溶媒 2

HCID 24380Iron chloride (FeCl3)触媒HCID 6212Chloroform溶媒

反応条件

温度
140 °C

実験手順

A mixture of N-methyl-N-(benzenesulfonyl)-2,6-difluorobenzohydrazonoyl chloride (1.72 g), 3-chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrile (1.50 g), anhydrous iron (III) chloride (0.85 g) and o-dichlorobenzene (10 ml) is stirred at an oil bath temperature of 140° C. for 30 minutes. After cooling, it is dissolved in chloroform (200 ml) and washed with dilute hydrochloric acid, dilute aqueous solution of sodium hydroxide and saline. Then, it is dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The concentrate is purified by silica gel column chromatography using mixed solvent of hexane-ethyl acetate as eluent and washed with hexane to give 1.25 g of desired compound.

後処理

  1. temperatureAfter cooling
  2. washwashed with dilute hydrochloric acid, dilute aqueous solution of sodium hydroxide and saline
  3. dry with materialThen, it is dried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe concentrate is purified by silica gel column chromatography
  6. additionusing mixed solvent of hexane-ethyl acetate as eluent
  7. washwashed with hexane

出典と根拠

ORDレコード
ord-1c73248cc80940cbb7b9acdb85c3f144
出典データセット
uspto-grants-1997_12
特許番号
US05700824

反応ノート

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