Adding a certain compound to certain chemical reactions, such as: 452-83-5, name is 2-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 452-83-5, category: chlorides-buliding-blocks
General procedure: A mixture of 2-bromostyrene (549mg, 3.00mmol), the appropriate 2-chloroaniline derivative (3.00mmol), Pd(dba)3 (68mg, 0.075mmol), DavePhos (79mg, 0.20mmol), and NaOtBu (864mg, 9.00mmol) in dry 1,4-dioxane (10mL) was stirred under a N2 atmosphere at 115C for 6h. After it had been cooled down to rt, EtOAc (150mL) was added. The mixture was washed with water (5×150mL) and subsequently with brine (150mL). The organic phase was separated and dried over MgSO4. After evaporation of the solvent, the residue was submitted to column chromatography (SiO2, eluent: petroleum ether/EtOAc 20:1). The yellow fraction was collected, and evaporation of the eluent in vacuo gave the desired product.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Chloro-5-fluoroaniline, and friends who are interested can also refer to it.
Reference:
Article; Tian, Maoqun; Abdelrahman, Aliaa; Weinhausen, Stephanie; Hinz, Sonja; Weyer, Stefanie; Dosa, Stefan; El-Tayeb, Ali; Mueller, Christa E.; Bioorganic and Medicinal Chemistry; vol. 22; 3; (2014); p. 1077 – 1088;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics