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. 468075-00-5, name is 2-Bromo-1-chloro-4-(trifluoromethoxy)benzene, A new synthetic method of this compound is introduced below., Application In Synthesis of 2-Bromo-1-chloro-4-(trifluoromethoxy)benzene
General procedure: A mixture of (4-iodophenyl)(methyl)sulfane (Compound 4A) (500 mg, 2 mmol), 4-bromophenylboronic acid (400 mg, 2 mmol), Na2CCh (636 mg, 6 mmol), and Pd(PPh3)4 (115 mg, 0.1 mmol) in toluene/EtOH/H20 (20/10/4 mL) was stirred at 80 C under nitrogen overnight The mixture was concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (ethyl acetate in petroleum ether, 10% v/v) to afford Compound 4B. LC-MS (ESI) m/z: non-ionizable compound under routine conditions used. – NMR (CDCb, 500 MHz): d (ppm) 2.52 (s, 3H), 7.32 (d, J= 8.5 Hz, 2H), 7.43 (d, J= 8.5 Hz, 2H), 7.48 (d, J= 8.5 Hz, 2H), 7.55 (d, J= 8.5 Hz, 2H).
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; BIOMARIN PHARMACEUTICAL INC.; WANG, Bing; CHAO, Qi; (737 pag.)WO2019/133770; (2019); A2;,
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