Adding a certain compound to certain chemical reactions, such as: 4863-91-6, name is 3-Chloro-5-fluoroaniline, belongs to chlorides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 4863-91-6, Application In Synthesis of 3-Chloro-5-fluoroaniline
EXAMPLE A-12 N-(3-chloro-5-fluorophenyl)-N’-t-pentylthiourea A solution of 8.5 g of 3-chloro-5-fluoroaniline in 150 ml of benzene was refluxed. To the solution was added 2.2 g of thiophosgene in 10 ml of benzene dropwise with stirring. The mixture was stirred at the same temperature for 3 hours, cooled to room temperature and filtered to remove insoluble matter. The filtrate was evaporated in vacuo and filtered again to remove insoluble matter. The filtrate was evaporated in vacuo. The residue was purified by silica gel column chromatography using n-hexane as a solvent. The resulting oil was dissolved in 30 ml of benzene and reacted with 3.4 g of t-pentylamine with stirring at room temperature for 30 minutes. The reaction mixture was evaporated in vacuo and the resulting solid recrystallized from cyclohexane to give 2.2 g of the title compound as colorless needles melting at 116.0-117.5 C. NMR (DMSO-d6, delta ppm): 0.82 (3H, t), 1.42 (6H, s), 1.93 (2H, q), 7.0-7.1 (1H, m), 7.4-7.7 (3H, m), 9.58 (1H, bs).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-Chloro-5-fluoroaniline, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Kanebo, Ltd.; US5087640; (1992); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics