3-Methylcrotonoyl chloride
Synonym(s):3-Methyl-2-butenoyl chloride;3-Methylcrotonoyl chloride;Senecioyl chloride
- CAS NO.：3350-78-5
- Empirical Formula: C5H7ClO
- Molecular Weight: 118.56
- MDL number: MFCD00000730
- EINECS: 222-109-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:08
What is 3-Methylcrotonoyl chloride?
Chemical properties
clear colorless to yellow liquid
The Uses of 3-Methylcrotonoyl chloride
3,3-Dimethylacryloyl chloride was used in the synthesis of:
- substituted 4,4-dimethyl-3,4-dihydro-1H-quinolin-2-one via condensation with aniline
- N-(3,3-Dimethylacryloyl)-(S)-leucine methyl ester
General Description
3,3-Dimethylacryloyl chloride reacts with silylketene acetals in acetonitrile to give δ-ethylenic β-keto esters.
Properties of 3-Methylcrotonoyl chloride
| Boiling point: | 145-147 °C(lit.) |
| Density | 1.065 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 124 °F |
| storage temp. | 2-8°C |
| solubility | soluble in Chloroform, Ethyl Acetate |
| form | Liquid |
| color | Clear colorless to yellow |
| Water Solubility | reacts |
| BRN | 1560268 |
| CAS DataBase Reference | 3350-78-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 3,3-Dimethylacryloyl chloride(3350-78-5) |
Safety information for 3-Methylcrotonoyl chloride
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H314:Skin corrosion/irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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. |
Computed Descriptors for 3-Methylcrotonoyl chloride
| InChIKey | BDUBTLFQHNYXPC-UHFFFAOYSA-N |
New Products
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