2,5-Thiophenedicarbonyl dichloride

Basic information

CAS number: 1939-77-3

Molecular formula: C₆H₂Cl₂O₂S

Molecular weight: 213.05 g/mol

Alias: Thiophene-2,5-diacyl chloride; 2,5-thiophene dicarbonyl chloride

Physical and chemical properties

Appearance and properties: Usually colorless to light yellow crystals or liquids, which may become turbid due to moisture absorption when exposed to air.

Melting point: 48-50℃

Boiling point: 145-148℃ (2 mmHg, vacuum distillation)

Solubility: Easily soluble in organic solvents (such as dichloromethane, tetrahydrofuran), reacts violently with water to generate corresponding carboxylic acids and hydrogen chloride gas.

Chemical properties: It belongs to the acyl chloride class of compounds, with active chemical properties, and is easily acylated with nucleophilic reagents such as amines, alcohols, and water.