≥98.0% 2,4,5-Trifluorobenzaldehyde CAS No.: 165047-24-5

C₇H₃F₃O

CAS No.: 165047-24-5

245-Trifluorobenzaldehyde CAS No 165047-24-5

Application

一种2,4,5-三氟苯甲醛的制备方法与流程

Utilizing 2,4,5-trifluorotoluene as the starting material, create 2,4,5-trifluorodichlorobenzyl by side chain chlorination with chlorine, and then hydrolyze to produce 2,4,5-trifluorobenzyl benzoaldehyde. 2,4,5-trifluorotoluene, the method's raw ingredient, is costly and hard to come by.

Lewis acid catalysis and a Gattermann-Koch reaction with a mixed gas of carbon monoxide and hydrogen chloride at high pressure produce 2,4,5-trifluorobenzaldehyde from 2,4,5-trifluorobenzene as the starting material. The high cost and scarcity of raw materials are further drawbacks of this approach.

It starts with 2,4,5-trifluorobenzene and combines with n-butyllithium at room temperature to produce 2,4,5-trifluorobenzaldehyde. DMF is then added. This method's reaction conditions are harsh, and the raw components are extremely pricey.

Physical Properties

Refractive index	n20/D 1.482(lit.)
Boiling point	168 °C (lit.)
Density	1.408 g/mL at 25 °C (lit.)
Molecular mass	142.1
Assay	≥98.0%
Flash point	137 °F
Package	25kgs or according customer requirement
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