Water → 6-chloro-2-ethylsulfanyl-N-[(3-fluorophenyl)-methyl]-4-methyl-pyridine-3-carboxylic acid amide

HRID 1039738Notes

Reaction equation

HRID 1039738 reaction equation
Cl[C:2]1[C:7]([C:8]([NH:10][CH2:11][C:12]2[CH:17]=[C:16]([F:18])[CH:15]=[C:14](F)[CH:13]=2)=[O:9])=[C:6]([CH3:20])[CH:5]=[C:4]([Cl:21])[N:3]=1.C([O-])([O-])=O.[K+].[K+].[CH2:28]([SH:30])[CH3:29].O>CN(C=O)C>[Cl:21][C:4]1[N:3]=[C:2]([S:30][CH2:28][CH3:29])[C:7]([C:8]([NH:10][CH2:11][C:12]2[CH:13]=[CH:14][CH:15]=[C:16]([F:18])[CH:17]=2)=[O:9])=[C:6]([CH3:20])[CH:5]=1

Participants

6

Reactant 4

HCID 962WaterHCID 6343EthanethiolHCID 11430Potassium CarbonateHCID 866643152,6-dichloro-N-(3,5-difluorobenzyl)-4-methyl-pyridine-3-carboxylic acid amide

Product 1

HCID 866643146-chloro-2-ethylsulfanyl-N-[(3-fluorophenyl)-methyl]-4-methyl-pyridine-3-carboxylic acid amideYield 76%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 4.0 g (12.8 mmol) 2,6-dichloro-N-(3,5-difluorobenzyl)-4-methyl-pyridine-3-carboxylic acid amide in DMF (30 ml) was treated with 2.6 g (19.2 mmol) K2CO3 and 1.2 ml (16.0 mmol) ethanethiol, followed by stirring in a closed vessel at RT for 16 h. Then water (35 ml) was added and the mixture was extracted with EtOAc (2×70 ml). The combined organic layers were washed with water, a 2M aq. NaOH sol. and brine, dried over MgSO4 and concentrated in vacuo. Purification of the residue by CC (hexane/EtOAc 3:1) provided 3.3 g (9.7 mmol, 76%) 6-chloro-2-ethylsulfanyl-N-[(3-fluorophenyl)-methyl]-4-methyl-pyridine-3-carboxylic acid amide.

Workup

  1. extractionthe mixture was extracted with EtOAc (2×70 ml)
  2. washThe combined organic layers were washed with water
  3. dry with materiala 2M aq. NaOH sol. and brine, dried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customPurification of the residue by CC (hexane/EtOAc 3:1)

Sources & evidence

ORD record
ord-ad29e06769b64942bd4d2b24141fabe6
Source dataset
uspto-grants-2013_10
Patent number
US08552200B2

Reaction notes

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