Methylamine → N-[4-chloro-2-methyl-6-[(methylamino)carbonyl]phenyl]-1-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide

HRID 516510Notes

Reaction equation

HRID 516510 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH3:29])[C:5]2[N:10]=[C:9]([C:11]3[N:15]([C:16]4[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=4)[N:14]=[C:13]([C:23]([F:26])([F:25])[F:24])[CH:12]=3)[O:8][C:7](=[O:27])[C:6]=2[CH:28]=1.[CH3:30][NH2:31]>O1CCCC1>[Cl:1][C:2]1[CH:28]=[C:6]([C:7]([NH:31][CH3:30])=[O:27])[C:5]([NH:10][C:9]([C:11]2[N:15]([C:16]3[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=3)[N:14]=[C:13]([C:23]([F:26])([F:24])[F:25])[CH:12]=2)=[O:8])=[C:4]([CH3:29])[CH:3]=1

Participants

4

Reactant 2

HCID 6329MethylamineHCID 231503516-chloro-2-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-8-methylbenzo[d][1,3]oxazin-4-one

Product 1

HCID 11511169N-[4-chloro-2-methyl-6-[(methylamino)carbonyl]phenyl]-1-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxamideYield 85.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of the benzoxazinone product of Example 6, Step D (4.50 g, 10.18 mmol) in tetrahydrofuran (THF; 70 mL) was added methylamine (2.0 M solution in THF, 15 mL, 30.0 mmol) dropwise and the reaction mixture was stirred at room temperature for 5 minutes. The tetrahydrofuran solvent was evaporated under reduced pressure and the residual solid was purified by chromatography on silica gel to afford 4.09 g of the title compound, a compound of the present invention, as a white solid melting at 185-186° C.

Workup

  1. customThe tetrahydrofuran solvent was evaporated under reduced pressure
  2. customthe residual solid was purified by chromatography on silica gel

Sources & evidence

ORD record
ord-4576fbe97b0043afb4e8038ec13ed2a3
Source dataset
uspto-grants-2015_08
Patent number
US09113630B2

Reaction notes

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