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

HRID 52232노트

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HRID 52232 반응식
[CH3:1][N:2](S(C1C=CC(C)=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[Cl:12].[Cl:24][C:25]1[CH:32]=[C:31]([O:33][C:34]2[CH:39]=[CH:38][C:37]([C:40]([F:43])([F:42])[F:41])=[CH:36][N:35]=2)[CH:30]=[CH:29][C:26]=1[C:27]#[N:28].ClC1C=CC=CC=1Cl>C(Cl)(Cl)Cl.[Fe](Cl)(Cl)Cl>[Cl:12][C:6]1[CH:7]=[CH:8][CH:9]=[C:10]([F:11])[C:5]=1[C:4]1[N:28]=[C:27]([C:26]2[CH:29]=[CH:30][C:31]([O:33][C:34]3[CH:39]=[CH:38][C:37]([C:40]([F:43])([F:41])[F:42])=[CH:36][N:35]=3)=[CH:32][C:25]=2[Cl:24])[N:2]([CH3:1])[N:3]=1

참가 물질

6

반응물 3

HCID 72391,2-DichlorobenzeneHCID 214636072-Chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrileHCID 54347086N-methyl-N-(p-toluenesulfonyl)-2-chloro-6-fluorobenzohydrazonoyl chloride

생성물 1

HCID 214636873-(2-chloro-6-fluorophenyl)-5-[2-chloro-4-(5-trifluoromethylpyridine-2-yloxy)phenyl]-1-methyl-1H-1,2,4-triazole수율 53.1%

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-(p-toluenesulfonyl)-2-chloro-6-fluorobenzohydrazonoyl chloride (2.25 g), 2-chloro-4-(5-trifluoromethylpyridine-2-yloxy)benzonitrile (1.88 g), anhydrous iron (III) chloride (1.07 g) and o-dichlorobenzene (5 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 hexaneethyl acetate as eluent to give 1.54 g of desired compound (melting point: 139.0°-141.0° 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 hexaneethyl acetate as eluent

출처 및 근거

ORD 기록
ord-3dca57f2281c4914bca04534540764e9
출처 데이터셋
uspto-grants-1997_04
특허 번호
US05616594

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