3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
- CAS NO.：24422-15-9
- Empirical Formula: C5Cl4OS
- Molecular Weight: 249.93
- MDL number: MFCD02093952
- EINECS: 000-000-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-26 13:35:54
What is 3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE?
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%.
Properties of 3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
| Melting point: | 38-40°C |
| Boiling point: | 124-125°C 10mm |
| Flash point: | 124-125°C/10mm |
| Sensitive | Moisture Sensitive |
| BRN | 1427060 |
Safety information for 3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
| Signal word | Warning |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE
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