Potassium Carbonate → 4,5-Diphenyl-6-(4-pyridin-2-yl-piperazin-1-yl)-2-(trifluoromethyl)pyrimidine

HRID 72671Notes

Reaction equation

HRID 72671 reaction equation
Cl[C:2]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[C:6]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[N:5]=[C:4]([C:20]([F:23])([F:22])[F:21])[N:3]=1.[N:24]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1[N:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[C:14]1([C:6]2[C:7]([C:8]3[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=3)=[C:2]([N:33]3[CH2:34][CH2:35][N:30]([C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][N:24]=4)[CH2:31][CH2:32]3)[N:3]=[C:4]([C:20]([F:23])([F:22])[F:21])[N:5]=2)[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 944591-(2-Pyridyl)piperazineHCID 104046804-Chloro-5,6-diphenyl-2-(trifluoromethyl)pyrimidine

Product 1

HCID 249590264,5-Diphenyl-6-(4-pyridin-2-yl-piperazin-1-yl)-2-(trifluoromethyl)pyrimidineYield 69.66%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
28 °C

Procedure

To a solution of 4-chloro-5,6-diphenyl-2-(trifluoromethyl)pyrimidine (0.5 g, 1.49 mmol, prepared according to the procedure described in PCT/IB03/02879) in DMF (5 ml) was added 1-pyridin-2-yl piperazine (0.107 g, 0.66 mmol) and anhydrous potassium carbonate (0.2 g) under stirring at 28° C. The reaction mixture was stirred for 4 hours and when TLC confirmed the completion, it was poured onto ice. The solid thus obtained was filtered and washed with water (20 ml). The above solid was then dissolved in dichloromethane (50 ml) and dried over anhydrous sodium sulphate. Evaporation of the solvent afforded the title compound (0.48 g, yield 69.66%, purity by HPLC 99.8%). m.p. 165-167° C. 1H-NMR (CDCl3) δ: 3.43 (s, 8H), 6.58-6.64 (m, 2H), 7.14-7.21 (m, 7H), 7.26-7.29 (m, 3H), 7.45-7.49 (t, 1H), 8.14-8.15 (d, 1H); IR cm−1 (KBr): 3436, 2839, 1591 and 1557; MS m/z: 462.1 (M++1).

Workup

  1. stirringThe reaction mixture was stirred for 4 hours
  2. additionwas poured onto ice
  3. customThe solid thus obtained
  4. filtrationwas filtered
  5. washwashed with water (20 ml)
  6. dissolutionThe above solid was then dissolved in dichloromethane (50 ml)
  7. dry with materialdried over anhydrous sodium sulphate
  8. customEvaporation of the solvent

Sources & evidence

ORD record
ord-f90250d01f4f49fcbbdfccb7a1f2ec98
Source dataset
uspto-grants-2014_09
Patent number
US08828999B2

Reaction notes

Loading…