Thionyl Chloride → HCID 17909371, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[C:3]=1[CH:10]([C:14]([OH:16])=O)[C:11](O)=[O:12].S(Cl)([Cl:19])=O>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[C:3]=1[C:10]([C:14]([Cl:19])=[O:16])=[C:11]=[O:12]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 95 °C
Procedure
7.6 g of 2-chloro-4,6-dimethylphenylmalonic acid according to Example (XXXV-1) were suspended in 22 ml of toluene and treated dropwise with 19.5 ml of thionyl chloride. The mixture was heated at 95° C. for 9.5 h, cooled and freed from the volatile constituents by passing argon through. The residues of thionyl chloride and the solvent were distilled off at 45° C. in a high vacuum. 6.6 g of 2-chloro-4,6-dimethylphenylchlorocarbonylketene were obtained as an oil which was slightly contaminated with 2-chloro-4,6-dimethylphenylacetyl chloride.
Workup
- temperaturecooled
- distillationThe residues of thionyl chloride and the solvent were distilled off at 45° C. in a high vacuum
Sources & evidence
- ORD record
- ord-52c945a1cae3404a87b30e7d0b8df937
- Source dataset
- uspto-grants-2004_07
- Patent number
- US06759548B2
Reaction notes
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