Reference of 100114-57-6, 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. 100114-57-6, name is 3-Cyclopropyl-1H-pyrazole belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
To a solution of 2-chloro-N-(2 ,4-d imethoxybenzyl)-5-n itrobenzenesulfonamide (700 mg,1.81 mmol) in acetonitrile (14 mL) were added 3-cyclopropyl-1H-pyrazole (240 p1,2.71 mmol, CAS-RN 100114-57-6) and powdered potassium carbonate (750 mg,5.43 mmol) and the mixture was irradiated for lh at 120C in the microwave. 5-Cyclopropyl-1H-pyrazole (240 p1, 2.71 mmol) was added, and microwave irradiation wascontinued for 2h at 140C. The reaction mixture was filtered and concentrated in vacuo,and the residue was extracted with dichloromethane and water. The aqueous phase was washed three times with dichloromethane. Then the combined organic phases were washed with brine and dried using a Whatman filter. Concentration under reduced pressure led to the title compound that was purified by flash chromatography (187 mg, 21% yield, 95% purity).LC-MS (Method B): Rt = 1.34 mm, MS (ESIpos): mlz = 459 [M+H]1HNMR (400MHz, DMSO-d6) oe [ppm]: 0.76 (m, 2H), 1.00 (m, 2H), 2.03 (m, 1H), 3.40 (s,3H), 3.60 (s, 3H), 4.17 (s, 2H), 6.11 (d, 1H), 6.28 (dd, 1H), 6.42 (d, 1H), 7.09 (d, 1H), 7.78 (d, 1H), 8.18 (d, 1H), 8.21 (d, 1H), 8.37 (t, 1H), 8.39 (dd, 1H).
The synthetic route of 3-Cyclopropyl-1H-pyrazole has been constantly updated, and we look forward to future research findings.