Related Products of 143426-52-2,Some common heterocyclic compound, 143426-52-2, name is 1-(4-(Chloromethyl)phenyl)-1H-pyrazole, molecular formula is C10H9ClN2, 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.
G) methyl 4-cyano-2-hydroxy-3-methyl-5- [4- ( lH-pyrazol-1- yl ) benzyl] benzoate To a solution of methyl 4-cyano-2-hydroxy-3-methyl-5- (4 , 4 , 5 , 5-tetramethyl-l, 3, 2-dioxaborolan-2-yl ) benzoate (3.50 g) in 1,4-dioxane (30.0 mL) were added 1- (4- (chloromethyl) phenyl) – lH-pyrazole (2.12 g) , tripotassium phosphate trihydrate (5.90 g) and [1,1′- bis (diphenylphosphino) ferrocene] dichloropalladium ( II ) dichloromethane adduct (0.34 g) , and the mixture was stirred at 90C for 16 hr under nitrogen atmosphere. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by flash silica gel column chromatography (ethyl acetate/petroleum ether) to give the title compound (0.86 g) . 1H NMR (400 MHz, CDCl3) delta 2.49 (3H, s) , 3.95 (3H, s) , 4.15 (2H, s), 6.46 (1H, s), 7.30 (2H, d, J = 8.4 Hz), 7.59-7.60 (1H, m) , 7.64 (2H, d, J = 8.4 Hz), 7.71 (1H, s) , 7.90 (1H, d, J = 2.4 Hz) , 11.07 (1H, brs) .
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-(4-(Chloromethyl)phenyl)-1H-pyrazole, its application will become more common.