In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 17635-44-8, name is 3,4,5-Tribromopyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 3,4,5-Tribromopyrazole
To a solution of 3,4,5-tribromo-1 H-pyrazole (25 g, 82 mmol, 1.0 eq) in THF (300 ml), was added n-BuLi (2.5 M in hexanes, 82.0 ml, 205 mmol, 2.5 eq) over 30 mm at -78C and the RM was stirred at this temperature for 1 h. The RM was quenched by dropwise addition of MeOH-THF (2:3; 150 ml) at -78C, and the mixture wasstirred for an additional 2 h allowing to warm RT gradually. The solvent was removed under reduced pressure. The residue was diluted with Et20 (600 ml), washed with dil. HCI (0.5N, 60 ml)and brine (75 ml), dried (Na2SO4), filtered and concentrated under reduced pressure to afford the desired product (12.5 g, 67%).
The synthetic route of 17635-44-8 has been constantly updated, and we look forward to future research findings.