Descripción

Productos

1-Bromo-4-pentene (also known as 5-Bromo-1-penteneor 4-Pentenyl bromide) CAS No.: 1119-51-3 , with the chemical formula C₅H₉Br and a molecular weight of 149.03 g/mol. It is a clear colorless to light yellow liquid. This compound belongs to the class of alkyl halides with an alkene group and is primarily used in organic synthesis and as a reagent, though it is subject to safety regulations due to its flammable and irritant properties.

Propiedades

5-Bromo-1-pentene exhibits the following key physical and chemical properties:

• Estado físico: Líquido (a temperatura ambiente).
• Apariencia: Líquido transparente entre incoloro y amarillo claro.
• Olor: No especificado.
• Punto de fusión: -106.7 °C (estimate).
• Punto de ebullición: 126-127 °C at 765 mmHg (lit.).
• Densidad: 1.258 g/mL at 25 °C (lit.).
• Solubilidad: Insoluble in water; soluble in organic solvents like chloroform, ethanol, and ether.
• Estabilidad: Stable under normal conditions; incompatible with strong oxidizing agents; flammable.
• Toxicidad: Moderately toxic; causes skin irritation, eye irritation, and respiratory irritation; may cause dizziness, nausea, and central nervous system effects upon inhalation.

Aplicaciones

The primary applications of 5-bromo-1-pentene include:

• Intermedio de síntesis orgánica: Used in the stereoselective synthesis of 7α-(3-carboxypropyl) estradiol, preparation of thioacetates like those in sialic acid derivatives, and recent syntheses of DL-histrionicotoxin and benzophenone-containing fatty acids.
• Reactivo: Employed in the production of pharmaceuticals, agrochemicals, fragrances, polymers, and as an analytical reagent.
• Otros: Serves as a versatile building block in organic chemistry for introducing alkyl chains with functional groups.

Clasificación

The following table outlines the classification of 5-bromo-1-pentene based on chemical properties, uses, and regulations: