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. 15801-69-1, name is 4-Bromo-1,3,5-trimethyl-1H-pyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 15801-69-1
General procedure: The starting materials 1a or 5a (1 equiv) and (3-formylphenyl)boronic acid (1 equiv) were dissolved in a mixture of 1 M sodiumcarbonate aqueous solution (15 mL), EtOH (5 mL) and toluene(15 mL). After nitrogen substitution, Pd(PPh3)4 (0.05 equiv) wasadded. The reaction mixture was stirred at 80 C under nitrogenatmosphere for 12 h. The reaction mixture was cooled, and water(15 mL) was added. The mixture was diluted with AcOEt (15 mL),and the insoluble material was filtered off through Celite. Theorganic layer of the filtrate was washed with brine, dried overanhydrous sodium sulfate, and concentrated in vacuo. The residuewas purified by silica gel column chromatography using a mixtureof petroleum ether/ethyl acetate (10:1, v/v) as eluent to afford thedesired product 2a or 6a as a solid. 4.1.1.2. 3-(1,3,5-trimethyl-1H-pyrazol-4-yl)benzaldehyde (6a). Yield:48%; 1H NMR (300 MHz, DMSO-d6) d: 10.05 (s, 1H), 7.87-7.75 (m,2H), 7.70-7.56 (m, 2H), 3.72 (s, 3H), 2.24 (s, 3H), 2.15 (s, 3H).
The synthetic route of 15801-69-1 has been constantly updated, and we look forward to future research findings.