Benzophenone → N-[(2Z)-2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]-2-ethoxyiminoethyl]-2-(trifluoromethyl)benzamide

HRID 56004Notes

Reaction equation

HRID 56004 reaction equation
[Cl:1][C:2]1[C:3]([C:12](=[N:27][O:28][CH2:29][CH3:30])[CH2:13][NH:14][C:15](=[O:26])[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[C:22]([F:25])([F:24])[F:23])=[N:4][CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1.C(C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(#N)C>[Cl:1][C:2]1[C:3](/[C:12](=[N:27]\[O:28][CH2:29][CH3:30])/[CH2:13][NH:14][C:15](=[O:26])[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[C:22]([F:24])([F:25])[F:23])=[N:4][CH:5]=[C:6]([C:8]([F:9])([F:11])[F:10])[CH:7]=1

Participants

4

Reactant 2

HCID 3102BenzophenoneHCID 131736890HCID 131736890, compound

Product 1

HCID 118071504N-[(2Z)-2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]-2-ethoxyiminoethyl]-2-(trifluoromethyl)benzamideYield 87.5%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To 48 mg of N-[2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(ethoxyimino)ethyl]-2-(trifluoromethyl)benzamide in 3 ml of acetonitrile, 1 mg of benzophenone was added, and the mixture was irradiated with light for 4 hours in a quartz cell (manufactured by Fine, 4 clear windows for spectroscopy) using a 100 W high-pressure mercury lamp (manufactured by USHIO INC., lamp: UM-102, power supply: UM-103B-B). After completion of the reaction, the solvent was evaporated under reduced pressure, and the resulting residue was purified by silica gel column chromatography using ethyl acetate-hexane (with a gradient of from 1:9 to 5:5) as the eluent to obtain 42 mg of the desired product as white crystals.

Workup

  1. customAfter completion of the reaction
  2. customthe solvent was evaporated under reduced pressure
  3. customthe resulting residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-2f427f502f364bb1a8fb17ec4914a72e
Source dataset
uspto-grants-2016_09
Patent number
US09434684B2

Reaction notes

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