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HomeProduct name list5-Bromo-1-pentene

5-Bromo-1-pentene

  • CAS NO.:1119-51-3
  • Empirical Formula: C5H9Br
  • Molecular Weight: 149.03
  • MDL number: MFCD00000264
  • EINECS: 214-281-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-09-23 17:56:10
5-Bromo-1-pentene Structural

What is 5-Bromo-1-pentene?

Description

5-Bromo-1-pentene is an organic compound with a molecular weight of 149.03. The formula of this compound is C5H9Br. It is a colorless, transparent liquid. The molecular structure of this molecule contains both double bonds and bromine atoms, giving it the properties of olefins and halogenated hydrocarbons. It serves as the starting material for the synthesis of DL-histrionicotoxin and phenyl-ketone fatty acids. Additionally, it is a fundamental chemical and pharmaceutical intermediate, finding wide applications in the fields of medicine, pesticides, and material chemistry.

Chemical properties

Clear colorless to yellow liquid

The Uses of 5-Bromo-1-pentene

5-Bromo-1-pentene is widely utilized in the stereoselective synthesis of 7alpha-(3-carboxypropyl) estradiol. It plays an important role as starting material in the synthesis of a variety of compounds including DL-histrionicotoxin and benzophenone containing fatty acids.

What are the applications of Application

5-Bromo-1-pentene is used in the synthesis of a variety of compounds

Synthesis Reference(s)

Tetrahedron, 28, p. 675, 1972 DOI: 10.1016/0040-4020(72)84031-6

Synthesis

1,5-Dibromopentane (100 Kg), N, N-dimethylformamide (100 Kg), and hexamethylphosphoramide (6.2 Kg) were stirred and mixed, and then heated in an oil bath at 140°C for 4 h. Atmospheric distillation collects the fractions, and the collected fractions are washed twice with 100 Kg brine. The organic liquid is distilled to obtain product 5-Bromo-1-pentene.
5-Bromo-1-pentene

Properties of 5-Bromo-1-pentene

Melting point: -106.7°C (estimate)
Boiling point: 126-127 °C/765 mmHg (lit.)
Density  1.258 g/mL at 25 °C (lit.)
refractive index  n20/D 1.463(lit.)
Flash point: 30 °C
storage temp.  2-8°C
solubility  Chloroform, Ethyl Acetate
form  Oil
color  Clear Colourless
Specific Gravity 1.258
Water Solubility  Immiscible with water.
BRN  506077
CAS DataBase Reference 1119-51-3(CAS DataBase Reference)
NIST Chemistry Reference 1-Pentene, 5-bromo-(1119-51-3)
EPA Substance Registry System 1-Pentene, 5-bromo- (1119-51-3)

Safety information for 5-Bromo-1-pentene

Signal word Warning
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H226:Flammable liquids
H315:Skin corrosion/irritation
H319:Serious eye damage/eye 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.
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 5-Bromo-1-pentene

InChIKey LPNANKDXVBMDKE-UHFFFAOYSA-N

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