Pyridine → HCID 18973686, compound
Reaction equation
[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[C:8](O)[CH:9]=[CH:10][C:11]=2[O:12][CH:13]([F:15])[F:14])[CH2:3][CH2:2]1.N1C=CC=CC=1.S(Cl)(Cl)=O.[CH:27](Cl)(Cl)[Cl:28]>>[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[C:8]([CH:9]=[CH:10][C:11]=2[O:12][CH:13]([F:15])[F:14])[CH2:27][Cl:28])[CH2:3][CH2:2]1Participants
5
Procedure
A solution of crude 3-cyclopropylmethoxy-4-difluoromethoxyphenyl alcohol (24.4 g) and pyridine (9.8 mL, 120 mmol) in chloroform (150 mL) under an argon atmosphere was treated with thionyl chloride (8.0 mL, 110 mmol) and the mixture was heated at reflux for 1 h. The solvent was removed, ether was added and the precipitate was removed by filtration. The filtrate was concentrated to a pale yellow oil (26 g).
Workup
- temperaturethe mixture was heated
- temperatureat reflux for 1 h
- customThe solvent was removed
- additionether was added
- customthe precipitate was removed by filtration
- concentrationThe filtrate was concentrated to a pale yellow oil (26 g)
Sources & evidence
- ORD record
- ord-aa781d988aae4b8081c468563e72552e
- Source dataset
- uspto-grants-1997_05
- Patent number
- US05631286
Reaction notes
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