ChemicalBook--->CAS DataBase List--->24422-15-9

24422-15-9

24422-15-9 Structure

24422-15-9 Structure
IdentificationBack Directory
[Name]

3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
[CAS]

24422-15-9
[Synonyms]

Rivaroxaban Impurity 166
trichlorothiophene-2-carbonyl chloride
3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
3,4,5-trichloro-2-thiophenecarbonyl chloride
2-Thiophenecarbonyl chloride, 3,4,5-trichloro-
3,4,5-Trichlorothien-2-carboxylic acid chloride
[EINECS(EC#)]

-0
[Molecular Formula]

C5Cl4OS
[MDL Number]

MFCD02093952
[MOL File]

24422-15-9.mol
[Molecular Weight]

249.93
Chemical PropertiesBack Directory
[Melting point ]

38-40°C
[Boiling point ]

124-125°C 10mm
[Fp ]

124-125°C/10mm
[Sensitive ]

Moisture Sensitive
[BRN ]

1427060
Safety DataBack Directory
[Risk Statements ]

34
[Safety Statements ]

26-36/37/39-45
[RIDADR ]

3261
[HazardClass ]

8
[PackingGroup ]

II
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Thionyl chloride-->n-Butyllithium-->TETRACHLOROTHIOPHENE
Hazard InformationBack Directory
[Preparation]

3,4,5-Trichlorothiophene-2-carbonyl chloride synthesis: A mixture of 3,4,5-trichloro-2-thiophenecarboxylic acid (20.4 g, 0.088 mol), SOCl2 (7.3 mL, 0.1 mol), and DMF (0.2 mL) in 80 mL of 1,2-dichloroethane was heated at reflux temperature for 3 h. The reaction mixture became homogeneous after 1 h of heating. The solution was cooled to 25℃, concentrated and placed under high vacuum to remove residual solvent, giving 22.0 g (98% wt.) of 3,4,5-trichloro-2-thiophenecarbonyl chloride as an oil which solidified on standing to an off-white powder; m.p. 37-41℃, having a GC area % purity > 99%.
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