Water → HCID 53884565, compound
Reaction equation
[CH2:1]([O:3][C:4](=[O:12])[C:5]1[CH:10]=[CH:9][CH:8]=[N:7][C:6]=1Cl)[CH3:2].C(=O)([O-])[O-].[Cs+].[Cs+].[Cl:19][C:20]1[CH:21]=[C:22]([OH:26])[CH:23]=[N:24][CH:25]=1.O>CN(C)C=O>[CH2:1]([O:3][C:4](=[O:12])[C:5]1[CH:10]=[CH:9][CH:8]=[N:7][C:6]=1[O:26][C:22]1[CH:23]=[N:24][CH:25]=[C:20]([Cl:19])[CH:21]=1)[CH3:2]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 2-Chloro-nicotinic acid ethyl ester (2.07 grams, 11.2 mmole), Cesium carbonate (7.27 grams, 22.3 mmole) and 5-chloro-3-pyridinol (1.45 grams, 11.2 mmole) in dry dimethylformamide (40 ml) was stirred at 90° C. overnight. The suspension was cooled to room temperature, poured into water and extracted with diethyl ether. The combined organics were washed with water and brine, dried over MgSO4, and concentrated to a tan solid. Recrystalization from hexane gave a yellow solid (1.0 g). M.P. 65-69° C.; Anal. calcd. for C13H11ClN2O3: C, 56.03; H, 3.98; N, 10.05. Found: C, 56.14; H, 4.04; N, 10.16.
Workup
- extractionextracted with diethyl ether
- washThe combined organics were washed with water and brine
- dry with materialdried over MgSO4
- concentrationconcentrated to a tan solid
- customRecrystalization from hexane
Sources & evidence
- ORD record
- ord-1b4e933c0cfe4a5188333c36216c9552
- Source dataset
- uspto-grants-2002_04
- Patent number
- US06380218B1
Reaction notes
Loading…