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

HRID 1940730노트

반응식

HRID 1940730 반응식
[CH3:1][N:2](S(C1C=CC=CC=1)(=O)=O)[N:3]=[C:4](Cl)[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[Cl:11].[Cl:22][C:23]1[CH:30]=[C:29]([O:31][C:32]2[CH:37]=[CH:36][C:35]([C:38]([F:41])([F:40])[F:39])=[CH:34][N:33]=2)[CH:28]=[CH:27][C:24]=1[C:25]#[N:26].ClC1C=CC=CC=1Cl>C(Cl)(Cl)Cl.[Fe](Cl)(Cl)Cl>[Cl:11][C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=1[C:4]1[N:26]=[C:25]([C:24]2[CH:27]=[CH:28][C:29]([O:31][C:32]3[CH:37]=[CH:36][C:35]([C:38]([F:41])([F:39])[F:40])=[CH:34][N:33]=3)=[CH:30][C:23]=2[Cl:22])[N:2]([CH3:1])[N:3]=1

참가 물질

6

반응물 3

HCID 72391,2-DichlorobenzeneHCID 214636072-Chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrileHCID 54508988N-methyl-N-phenylsulfonyl-2-chlorobenzohydrazonoyl chloride

생성물 1

HCID 214636273-(2-chlorophenyl)-5-[2-chloro-4-(5-trifluoromethylpyridine-2-yloxy)phenyl]-1-methyl-1H-1,2,4-triazole수율 67.3%

시약·촉매·용매 2

HCID 24380Iron chloride (FeCl3)촉매HCID 6212Chloroform용매

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온도
140 °C

실험 절차

A mixture of N-methyl-N-(benzenesulfonyl)-2-chlorobenzohydrazonoyl chloride (2.05 g), 2-chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrile (1.88 g), anhydrous iron (III) chloride (1.07 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 (300 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 to give 1.87 g of desired compound (melting point: 104.0°-108.0° C.).

후처리

  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

출처 및 근거

ORD 기록
ord-1154b77a029143369d78e2d011a31703
출처 데이터셋
uspto-grants-1997_12
특허 번호
US05700824

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