Related Products of 455-18-5,Some common heterocyclic compound, 455-18-5, name is 4-(Trifluoromethyl)benzonitrile, molecular formula is C8H4F3N, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
[4-TRIFLUOROMETHYL-THIOBENZAMIDE] A solution of [A,] a, a-trifluoro-p-tolunitrile (603.5 g, 3.53 mol) in dry DMF (2 L) under N2 [WAS HEATED AT 70XB0;C AND THIOACETAMIDE (505 G, 1.9 EQ. ) ADDED. THE REACTION MIXTURE] was treated with HCI gas for 15 minutes and was stirred at [95XB0;C] for 6 hours. This treatment was repeated 3 times and the mixture stirred at rt for 24 hours. After cooling to [0XB0;C,] water was added and the residue was extracted with diethyl ether (4 L). The organic layer was washed with water (3 L), dried over [NA2SO4] and evaporated. The brownish powder was washed with pentane (3 L) to give the title compound (530.3g, 2.59 mol) as a brown solid in 73% yield ; GC/MS: [M+] [C8H6F3NS] 205
The synthetic route of 455-18-5 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; GLAXO GROUP LIMITED; WO2004/6922; (2004); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts