4-Bromo-1-butene
- CAS NO.：5162-44-7
- Empirical Formula: C4H7Br
- Molecular Weight: 135
- MDL number: MFCD00000258
- EINECS: 225-937-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:13
What is 4-Bromo-1-butene?
Chemical properties
colourless liquid
The Uses of 4-Bromo-1-butene
4-Bromo-1-butene is a brominated alkene used as a reagent in organic synthesis.
The Uses of 4-Bromo-1-butene
4-Bromo-1-butene is used in the preparation of 4-(3-butenyloxy)benzoic acid and largazole. It is also used in double alkylation of lactams followed by Grubbs ring-closing metathesis to yield gymnodimine. Further, it serves as a reagent in the preparation of dienehydrazides.
What are the applications of Application
4-Bromo-1-butene is used for preparation of dienehydrazides
Synthesis Reference(s)
Tetrahedron Letters, 25, p. 251, 1984 DOI: 10.1016/S0040-4039(00)99853-8
General Description
Stereoselective epoxidation of 4-bromo-1-butene was carried out with three alkene-utilizing bacteria: Mycobacterium LI, Mycobacterium E3 and Nocardia IP1.
Properties of 4-Bromo-1-butene
| Melting point: | -115.07°C (estimate) |
| Boiling point: | 98-100 °C (lit.) |
| Density | 1.33 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 49 °F |
| storage temp. | Store below +30°C. |
| solubility | 0.76g/l |
| form | Liquid |
| color | Clear colorless to light brownish |
| Specific Gravity | 1.330 |
| Water Solubility | Miscible with water, benzene, ether and ethanol. |
| Sensitive | Light Sensitive |
| BRN | 1098377 |
| Stability: | Stable. Incompatible with strong bases, strong oxidizing agents. Highly flammable. Light sensitive. |
| CAS DataBase Reference | 5162-44-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Butene, 4-bromo-(5162-44-7) |
| EPA Substance Registry System | 1-Butene, 4-bromo- (5162-44-7) |
Safety information for 4-Bromo-1-butene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08 |
| GHS Hazard Statements |
H225:Flammable liquids H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H334:Sensitisation, respiratory 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. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 4-Bromo-1-butene
| InChIKey | DMAYBPBPEUFIHJ-UHFFFAOYSA-N |
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