Hydrochloric Acid → Ethyl 3-(4-fluorobenzoyl)-2-thiazolidinecarboxylate
Reaction equation
[S:1]1[CH2:5][CH2:4][NH:3][CH:2]1[C:6]([O:8][CH2:9][CH3:10])=[O:7].[F:11][C:12]1[CH:20]=[CH:19][C:15]([C:16](Cl)=[O:17])=[CH:14][CH:13]=1.Cl>C(Cl)Cl>[F:11][C:12]1[CH:20]=[CH:19][C:15]([C:16]([N:3]2[CH2:4][CH2:5][S:1][CH:2]2[C:6]([O:8][CH2:9][CH3:10])=[O:7])=[O:17])=[CH:14][CH:13]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
The solution of ethyl thiazolidine-2-carboxylate (24.18 g, 0.15 mol) in abs. CH2Cl2 (80 ml) is treated dropwise at RT with the solution of 4-fluorobenzoyl chloride (23.78, 0.15 mol) in abs. CH2Cl2 (20 ml). The solution warms to 38° C., the solvent begins to boil and HCl is released. It is kept under reflux for 4 h with heating.
Workup
- customwarms to 38° C.
- temperatureunder reflux for 4 h
- temperaturewith heating
Sources & evidence
- ORD record
- ord-3258aa0bb5a0478ba7e63250cd1e3233
- Source dataset
- uspto-grants-2005_03
- Patent number
- US06867211B2
Reaction notes
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