Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 51632-12-3, name is 2-(4-Bromophenyl)-3-methylbutanenitrile, A new synthetic method of this compound is introduced below., Formula: C11H12BrN
SYNTHESIS EXAMPLE 2 4-Bromo-alpha-isopropyl-phenylacetic acid 20 g of 4-bromo-alpha-isopropylphenylacetonitrile was heated with 140 ml of sulfuric acid (50V/V%) at 145 C for 6 hours. The cooled reaction mixture was poured onto 150 g of ice, and extracted with ether (100 ml * 3). The ether layers were combined and extracted with three 70 ml portions of cold 5% sodium hydroxide solution, and the aqueous extracts were acidified with concentrated hydrochloric acid, and then extracted with ether. The ether extract was washed successively with water, saturated sodium chloride solution, dried over anhydrous sodium sulfate. Removal of the solvent gave 16.9 g (78.2%) of white crystals, which were sufficiently pure for use in next step. A portion of the crystals was recrystallized from benzene, melting point: 97 – 98 C.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Sumitomo Chemical Company, Limited; US3996244; (1976); A;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts