Related Products of 50877-42-4, 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. 50877-42-4, name is 1-Benzyl-4-iodo-1H-pyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
A mixture of 1-benzyl-4-iodo-1H-pyrazole (1.05 g, 3.70 mmol) , bis (pinacolato) diboron (1.00 g, 3.94 mmol) , potassium acetate (1.00 g, 9.88 mmol) and Pd (dppf) Cl2(130 mg, 0.18 mmol) in DMSO (20 mL) was stirred at 80 under N2for 7 h. The reaction mixture was cooled to rt and quenched with water (50 mL) . The resulting mixture was extracted with EtOAc (50 mL × 3) . The combined organic layers were washed with saturated aqueous NaCl (50 mL × 2) , dried over anhydrous Na2SO4and concentrated in vacuo. The residue was purified by silica gel column chromatography eluted with PE/EtOAc (v/v) 5/1 to give a light yellow oily product (200 mg, 19.0) .[1088]MS (ESI, pos. ion) m/z: 282.3 [M+1]+ and[1089]1H NMR (600 MHz, CDCl3) : delta (ppm) 7.84 (s, 1H) , 7.69 (s, 1H) , 7.34 (m, 3H) , 7.25 (m, 2H) , 5.32 (s, 2H) , 1.32 (s, 12H)
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, 1-Benzyl-4-iodo-1H-pyrazole, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; SUNSHINE LAKE PHARMA CO., LTD.; LIU, Bing; ZHANG, Yingjun; CHENG, Changchung; HUANG, Jiuzhong; BAI, Shun; REN, Xingye; LI, Zhi; ZHOU, Youbai; (368 pag.)WO2016/615; (2016); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics