1,2-Dimethoxyethane → 6-(3,5-dimethylisoxazol-4-yl)-4-(4-methyl-1-phenyl-1H-pyrazol-5-yl)-1H-benzo[d]imidazol-2(3H)-one

Participants

Reaction Conditions

Reaction Steps

6-(3,5-dimethylisoxazol-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-2(3H)-one (30 mg, 0.084 mmol) and 5-bromo-4-methyl-1-phenyl-1H-pyrazole (30 mg, 0.13 mmol) was added to a solvent mixture of 1,2-dimethoxyethane (2 ml) and water (1 ml). To the above mixture were added PEPPSI-Ipr (5.4 mg, 0.008 mmol) and Cs2CO3 (83 mg, 0.25 mmol). The reaction mixture was heated at 130° C. in microwave reactor for 30 mins. The reaction mixture was then filtered and organic solvent was evaporated and the residue was purified with Prep HPLC (0-100% CH3CN/H2O) to afford 3.9 mg product 6-(3,5-dimethylisoxazol-4-yl)-4-(4-methyl-1-phenyl-1H-pyrazol-5-yl)-1H-benzo[d]imidazol-2(3H)-one (yield=12%).

Provenance & Evidence