m-Chloroperbenzoic acid → HCID 68807292, compound

Participants

Reaction Steps

2-(3-Methyl-2′-methylsulfanyl-biphenyl-4-ylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.57 g, 1.3 mmol) was dissolved in 10 mL EtOAc, added added m-chloroperoxybenzoic acid (1.76 g, 6.1 mmol) in one portion and stirred at ambient temperature for 3 hours. Reaction not complete. Concentrated and redissolved in 10 mL acetonitrile and added oxone (1.5 g, 2.4 mmol) in one portion and stirred at ambient temperature overnight and then concentrated. Redissolved in 100 mL EtOAc and 100 mL sat. NaHCO3, separated layers, washed organics with brine, dried with MgSO4, filtered and concentrated. Purified on a silica gel column eluted with 20% moving to 40% EtOAc in hexanes. Combined and concentrated pure fractions to yield title compound. (0.44 g, 72%) APCI (AP−): 457.1 (M−H)−.

Provenance & Evidence