反应详情

A mixture of 2-amino-5-(3-bromophenyl)-5-[4-(difluoromethoxy)phenyl]-3-methyl-3,5-dihydro-4H-imidazol-4-one (150 g, 0.36 mmol), dimethoxyethane, 2-[(E)-2-cyclopropylvinyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (105 mg) and Na2CO3 (2 M, 2.5 mL) was degassed under argon for 5 minutes and treated with tetrakis(triphenylphosphine)palladium(0) (21 mg, 0.018 mmol). The reaction mixture was stirred for 15 hour, poured into water and extracted with ethyl acetate. The extracts were combined, dried over MgSO4 and concentrated in vacuo. Purification of the resultant residue by ICSO (EtOAc/MeOH 10/1) gave the title product as a white solid (98 mg), identified by NMR and mass spectral analyses.

1. customwas degassed under argon for 5 minutes
2. extractionextracted with ethyl acetate
3. dry with materialdried over MgSO4
4. concentrationconcentrated in vacuo
5. customPurification of the resultant residue by ICSO (EtOAc/MeOH 10/1)