1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole → HCID 86723765, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-8-methyl-7-(propan-2-yloxy)isoquinolin-1(2H)-one (108h, 150 mg, 0.507 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (210 mg, 1.01 mmol) and Pd(Ph3P)4 (29 mg, 0.025 mmol) in 1M aq. Na2CO3 (1 mL) and DME (5 mL) was degassed with N2 for 3 minutes. The reaction mixture was stirred at 140° C. in the microwave for 35 minutes. The reaction mixture was dried over Na2SO4, filtered, and concentrated under vacuum. The residue was purified by column chromatography (EtOAc) to give 8-methyl-5-(1-methyl-1H-pyrazol-4-yl)-7-(propan-2-yloxy)isoquinolin-1(2H)-one (108i, 0.14 g, 92.9%) as a white solid.

Provenance & Evidence