Dimethylamine → HCID 86633638, compound

HRID 1855522Notes

Reaction equation

C(Cl)(=O)C(Cl)=O.[Cl:7][C:8]1[N:13]=[C:12]([C:14]([OH:16])=O)[CH:11]=[C:10]([C:17]2[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=2)[N:9]=1.[CH3:27][NH:28][CH3:29].C(=O)([O-])O.[Na+]>ClCCl.CN(C)C=O>[CH3:27][N:28]([CH3:29])[C:14]([C:12]1[CH:11]=[C:10]([C:17]2[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=2)[N:9]=[C:8]([Cl:7])[N:13]=1)=[O:16]

Participants

Conditions

Temperature: 20 °C

Procedure

Oxalyl chloride (0.38 mL, 4.5 mmol) and N,N-dimethylformamide (0.03 mL) were added to a suspension of 2-chloro-6-(4-trifluoromethyl-phenyl)-pyrimidine-4-carboxylic acid (303 mg, 1.0 mmol) in dichloromethane (20 mL). The mixture was stirred at 20° C. for 3 h and then evaporated under reduced pressure. The residue was dissolved in dichloro-methane (25 mL) and the solution was stirred together with 60% aqueous dimethylamine (1.2 mL, 13.3 mmol) and saturated aqueous sodium hydrogencarbonate solution (8 mL) for 1 h at 20° C. The mixture was diluted with dichloromethane (25 mL), and the organic layer was washed with water and brine, dried over sodium sulfate, and evaporated under reduced pressure. The residual material was purified by chromatography on silica gel using heptane/0-40% ethyl acetate as eluent to give the title compound (215 mg, 65%) as a white solid. MS ISP (m/e): 330.2 [(M+H)+]. 1H NMR (CDCl3, 300 MHz): δ (ppm)=8.24 (d, 2H), 7.99 (s, 1H), 7.80 d, 2H), 3.17 (s, 6H).

Workup

customevaporated under reduced pressure
dissolutionThe residue was dissolved in dichloro-methane (25 mL)
washthe organic layer was washed with water and brine
dry with materialdried over sodium sulfate
customevaporated under reduced pressure
customThe residual material was purified by chromatography on silica gel

Sources & evidence

ORD record: ord-a8ddb633f8c8435080e33be6701ce3c6
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962834B2

Reaction notes

Loading…