Sodium Carbonate → HCID 68805998, compound

Participants

Reaction Steps

2-(4-Bromo-2-methyl-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (1.07 g, 2.7 mmol), 2-(methylthio)benzene boronic acid (0.56 g, 3.3 mmol), and tetrabutylammonium bromide (322 mg, 0.13 mmol) were combined in 20 mL toluene, added 2.8 mL of a 2M aqueous Na2CO3 solution followed by tetrakistriphenylphosphine palladium(0) (0.161 g, 0.13 mmol). Heated reaction at reflux 4 hours, cooled, concentrated, redissolved in EtOAc (250 mL), washed with water (3×200 mL), brine (200 mL), dried with MgSO4, filtered, and concentrated. Purified on a silica gel column eluted with 20% EtOAc in hexanes. Combined and concentrated pure fractions to yield title compound. (0.59 g, 50%) APCI (AP−): 425.1 (M−H)−.

Provenance & Evidence