Potassium Carbonate → 1-[4-Chloro-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole
Reaction equation
[F:1][CH:2]([F:14])[C:3]1[NH:7][C:6]2[CH:8]=[CH:9][CH:10]=[C:11]([O:12][CH3:13])[C:5]=2[N:4]=1.[Cl:15][C:16]1[N:21]=[C:20](Cl)[N:19]=[C:18]([N:23]2[CH2:28][CH2:27][O:26][CH2:25][CH2:24]2)[N:17]=1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.O>[Cl:15][C:16]1[N:17]=[C:18]([N:23]2[CH2:24][CH2:25][O:26][CH2:27][CH2:28]2)[N:19]=[C:20]([N:7]2[C:6]3[CH:8]=[CH:9][CH:10]=[C:11]([O:12][CH3:13])[C:5]=3[N:4]=[C:3]2[CH:2]([F:1])[F:14])[N:21]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
A mixture of 3.96 g (20 mmol) of 2-difluoromethyl-4-methoxy-1H-benzimidazole, 4.70 g (20 mmol) of 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine, and 22 g (80 mmol) of powdered K2CO3 in 150 mL of DMF was stirred rapidly for 3 hrs, and then diluted with water. The resulting precipitate was collected, washed with water and then with cold ethanol, and dried to give 6.82 g (86%) of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole: mp (CHCl3/EtOH) 263-266° C.; 1H NMR (CDCl3) δ 7.99 (d, J=8.4 Hz, 1H), 7.48 (t, JHF=53.4 Hz, 1H), 7.40 (t, J=8.3 Hz, 1H), 6.86 (d, J=8.1 Hz, 1H), 4.05 (s, 3H), 3.96 (m, 4H), 3.82 (m, 4H); Anal. Calcd. for C16H15ClF2N6O2: C, 48.4; H, 3.8; N, 21.2. Found: C, 48.3; H, 3.8; N, 21.1%.
Workup
- customThe resulting precipitate was collected
- washwashed with water
- dry with materialwith cold ethanol, and dried
Sources & evidence
- ORD record
- ord-d76a1170ebb148f2967db01f58700513
- Source dataset
- uspto-grants-2014_07
- Patent number
- US08772287B2
Reaction notes
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