4-Chlorocinnamic acid is obtained by reacting p-chlorobenzaldehyde with acetic anhydride. The p-chlorobenzaldehyde, acetic anhydride and sodium acetate were reacted together at 180 ° C for 13 h. After the reaction, it was slightly cold, poured into water, filtered, and the filter cake was washed with water and repeatedly dissolved with ammonia water until only a small amount of brownish yellow viscous remained. The obtained ammonium salt solution was filtered, and p-chlorocinnamic acid was re-precipitated with 3N dilute sulfuric acid, and dried by filtration to obtain a product. The yield is about 80%.
Chemical Name: 4-Chlorocinnamic acid
Synonyms: p-Chlorocinnamic acid; 3-(4-chlorophenyl)acrylic acid; trans-4-Chlorocinnamic acid; trans-3-(4-Chlorophenyl)propenoic acid; Cinnamic acid, p-chloro-
CAS NO.: 1615-02-7
Molecular Formula: C9H7ClO2
Molecular Weight: 182.61
Melt point: 248-250 °C(lit.)
Boiling point: 260.71°C (rough estimate)
Density: 1.2377 (rough estimate)
Refractive index: 1.5426 (estimate)
Storage conditions: Room temperature.
Acidity coefficient (pKa): 4.41(at 25℃)
Appearance: white crystal powder, it can be solved in ethanol, ethyl acetate and other organic solvent.
Purity: 99% Min
An organic synthesis intermediate for the synthesis of p-chloropropionic acid to produce a herbicide, Mai Di San. For the synthesis of herbicides.
Appearance: A colorless, transparent liquid with a sweet, fruity and oily taste. Solubility: Miscible in ethanol, ether, chloroform and most non-volatile oils, soluble in propylene glycol, insoluble in water. Vapor pressure: 0.00141mmHg at 25°C Package specification: 200kg/blue barrel Storage: Pay attention to the source of fire, especially to
(E)-3-(3-Chlorophenyl)propenoic acid; 3-Chloro-trans-cinnamic acid; m-Chloro-trans-cinnamic acid; (E)-3-(3-Chlorophenyl)acrylic acid, (2E)-3-(3-Chlorophenyl)prop-2-enoic acid; trans-3-Chlorocinnamic acid 98%;(E)-3-Chlorocinnamic Acid; trans-3-Chlorocinnamicacid98%; 3-(3-chlorophenyl)-,(E)-2-Propenoicacid
Appearance: Pale yellow liquid/colorless thick liquid, solid when cold. Fragrant, sweet amber and fresh fruit. Solubility: Insoluble in water, soluble in oil, miscible in ethanol. Package specification: 200kg/blue barrel Storage: Pay attention to the source of fire, especially to avoid sunlight, and store in a cool place.