Synthetic Route of 1151814-36-6,Some common heterocyclic compound, 1151814-36-6, name is 1-Cyclopropyl-1H-pyrazole, molecular formula is C6H8N2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
step 1 1-cyclopropyl-4-iodo -1H- pyrazole-pyrazole 100 mg, cyclopropyl boronic acid 253 mg, sodium carbonate 312 mg 1,2-dichloroethane in addition to 2.5 ml, was added dropwise 1,2-dichloroethane 5ml with copper acetate 267mg and 2,2-bipyridine 230mg was suspended and stirred for 4 hours at 70 C..After dilution with ethyl acetate, saturated aqueous ammonium chloride solution, washed successively with water and saturated brine, and dried over magnesium sulfate.Under reduced pressure, after the evaporation of the solvent gave 148mg as a yellow oil.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-Cyclopropyl-1H-pyrazole, its application will become more common.
Reference:
Patent; NIPPON SHINYAKU COMPANY LIMITED; FUJIHARA, HIDETAKA; ASAKI, TETSUO; HORI, KATSUTOSHI; NAITO, HARUNA; (146 pag.)JP5668756; (2015); B2;,
Pyrazole – Wikipedia,
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