Reaction equation
[CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[CH2:5]Cl)[CH3:2].[C:10]([O-:18])(=[O:17])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.[K+].CN(C=O)C.O>C(OCC)(=O)C>[CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[CH2:5][O:18][C:10](=[O:17])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[CH3:2]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
Chloroacetaldehyde diethyl acetal (1.9 g), potassium benzoate (2.0 g) and DMF (20 mL) were placed in a three-neck flask, followed by refluxing. Twenty hours later, the reaction mixture was cooled to room temperature, and water (60 mL) and ethyl acetate (80 mL) were added thereto, followed by stirring. After filtration and separation, the organic layer was concentrated and thereby yielded the target compound (0.69 g) in a yield of 30%.
Workup
- temperatureby refluxing
- filtrationAfter filtration and separation
- concentrationthe organic layer was concentrated
Sources & evidence
- ORD record
- ord-ab04dd03fbe84d7fa44f135c7f0202f5
- Source dataset
- uspto-grants-2010_06
- Patent number
- US07728152B2
Linked notes
Loading…