Application of 473528-88-0, 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. 473528-88-0, name is 4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
Preparation 142: 1 -Methyl-4-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H-pyrazole- e A mixture of 4-bromo-1 -methyl-1 H-pyrazole-5-carbaldehyde (150 mg, 0.794 mmol), KOAc (234 mg, 2.38 mmol), Pd(dppf)CI2 FontWeight=”Bold” FontSize=”10″ DCM (33.6 mg, 0.040 mmol) and bis(pinacolato)diboron (222 mg, 0.873 mmol) in dioxane (4 mL) was stirred at ^ 00 oC under microwave irradiation for 1 hour. The reaction mixture was diluted with EtOAc. The mixture was filtered and purified using Biotage silica gel column chromatography eluting with 20% EtOAc/ cyclohexanes to give the title compound (96 mg, 51 %). 1 H NMR (500 MHz, CDCI3): 0 10.28 (s, 1 H), 7.79 (s, 1 H), 4.20 (s, 3H), 1 .34 (s, 12H). LCMS (ESI) Rt = 2.55 minutes MS m/z 237 [M+H]+
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, 4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde, other downstream synthetic routes, hurry up and to see.