Water → HCID 12290225, compound
Reaction equation
[C:1]([C:3]([C:8]1[CH:13]=[CH:12][C:11]([Cl:14])=[C:10]([Cl:15])[CH:9]=1)=[CH:4][C:5]([O-:7])=[O:6])#N.[K+].S(=O)(=O)(O)[OH:18].O>C(O)=O>[Cl:15][C:10]1[CH:9]=[C:8]([C:3]2[C:1](=[O:18])[O:6][C:5](=[O:7])[CH:4]=2)[CH:13]=[CH:12][C:11]=1[Cl:14]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
25.8 g (92 mmol) of potassium 3-cyano-3-(3,4-dichlorophenyl)acrylate were dissolved in 200 ml of 88% strength formic acid and admixed dropwise with 15 ml of concentrated sulfuric acid. The mixed was then heated under reflux for 3 h, poured at 90° C. into 2.5 l of water and stirred for 1 h, and the product was filtered off, washed with water and dried. Yield: 18.9 g, m.p. 112° C.
Workup
- temperatureThe mixed was then heated
- temperatureunder reflux for 3 h
- filtrationthe product was filtered off
- washwashed with water
- customdried
Sources & evidence
- ORD record
- ord-b3943ad0192442b0a5b22875bd46a832
- Source dataset
- uspto-grants-2002_11
- Patent number
- US06476061B1
Reaction notes
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