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ChemicalBook--->CAS DataBase List--->17918-14-8

17918-14-8

17918-14-8 Structure

17918-14-8 Structure
IdentificationMore
[Name]

2,5-DIMETHOXYBENZOYL CHLORIDE
[CAS]

17918-14-8
[Synonyms]

2,5-DIMETHOXYBENZENE-1-CARBONYL CHLORIDE
2,5-DIMETHOXYBENZOYL CHLORIDE
BUTTPARK 48\04-28
2,5-Dimethoxybenzoic acid chloride
[EINECS(EC#)]

241-863-5
[Molecular Formula]

C9H9ClO3
[MDL Number]

MFCD00016347
[Molecular Weight]

200.62
[MOL File]

17918-14-8.mol
Chemical PropertiesBack Directory
[Boiling point ]

179°C/10mm
[CAS DataBase Reference]

17918-14-8(CAS DataBase Reference)
Safety DataBack Directory
[Symbol(GHS) ]


GHS05
[Signal word ]

Danger
[Hazard statements ]

H314
[Precautionary statements ]

P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
Hazard InformationBack Directory
[Preparation]

AlCl3 (4.0 g, 30 mmol) was suspended in dichloromethane (30 mL). To this mixture, a solution of 1,4- dimethoxybenzene (1.38 g, 10 mmol) and triphosgene (5.94 g, 20 mmol) in dichloromethane (30 mL) was added dropwise over a period of 30 min. The resulting mixture was stirred under reflux for 7 days. It was then poured into crushed ice/ water (50 mL) and stirred with pyridine (0.5 mL) at 0 ℃ for 10 min. The layers were separated and the aqueous phase was extracted with dichloromethane (2 ×20 mL). The combined organic layers were washed with ice-cold 0.5 m HCl (30 mL) and with ice-cold water (2×10 mL), and dried over sodium sulfate. The solvent was evaporated in vacuo and the residue was purified by chromatography on silica gel, eluting with hexane/ethyl acetate (4:1→3:1→2:1→1:1), to afford 1.23 g (60%) of 2,5-dimethoxybenzoyl chloride.
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