Synthetic Route of 36650-74-5,Some common heterocyclic compound, 36650-74-5, name is 1H-Pyrazole-3-carbonitrile, molecular formula is C4H3N3, 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.
Example 60. Synthesis of 2-(4-(3-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)-lH- pyrazol-l-yl)-5-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-2-yl)-3-fluorobenzonitrile, 1-60 Synthesis of compound 60.2. To a mixture of 60.1 (0.14g, 1.50mmol, 1.0 eq) and aminoalcohol (0.20g, 2.25 mmol, 1.5eq) was added ZnCl2 (0.041g, 0.30mmol, 0.2 eq) and stirred at 95 C under microwave irradiation for 4 h. Upon completion of the reaction, mixture was quenched with water. Resulting mixture was extracted with EtOAc. Organic layers were combined, washed with brine, dried over Na2S04 and concentrated under reduced pressure. The residue was purified by flash column chromatography to obtain pure 60.2 (0.10 g, 41.6%). MS(ES): m/z 166.2 [M+H]+.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1H-Pyrazole-3-carbonitrile, its application will become more common.