Application of 36650-74-5, A common heterocyclic compound, 36650-74-5, name is 1H-Pyrazole-3-carbonitrile, molecular formula is C4H3N3, its 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.
A mixture of SB-FF (100 mg, 0.241 mmol), lH-pyrazole-3-carbonitrile (45 mg, 0.48 mmol), K2CO3 (66 mg, 0.48 mmol) and DMF (3 mL) were stirred at room temperature for 2 h. TLC showed the reaction was finished. The reaction mixture was poured into brine (10 mL) and extracted with EtOAc (10 mLx2). Combined the organic layers and dried over Na2S04, concentrated to give crude product, which was purified by silica gel column to give SB-13 (30 mg, yield: 28%) as a white solid. 1H NMR: (400 MHz, CDC13) delta 7.48 (s, 1H), 6.73 (s, 1H), 4.79-4.97 (m, 2H), 4.47-4.65 (m, 1H), 2.56-2.63 (m, 1H), 2.30-2.20 (m, 1H), 2.10-2.00 (m, 1H), 1.90-1.60 (m, 6H), 1.50-1.20 (m, 15H), 0.85-0.75 (m, 1H), 0.70 (s, 3H). LCMS: rt = 1.23 mm, m/z = 428.2 [M+H]+
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.