Dimethyl Sulfoxide → 79091-88-6

Participants

Reaction Conditions

Reaction Steps

At −78° C., oxalyl Chloride (9.2 mL, 106.5 mmol) was solved in dichloromethane (250 mL) and (15.5 mL, 218 mmol) of dimethylsulfoxide in 20 mL of dichloromethane was added. After 15 minutes of stirring at −78° C., Trans-2-Hydroxymethyl-cyclobutanecarboxylic acid methyl ester (14 g, 95.17 mmol) was added in 78 mL of dichloromethane and 10 minutes later triethylamine (67 mL, 479 mmol) was added and the mixture was stirred for 2 h at −78° C. 150 mL of dichloromethane added and 200 mL of water were added and the aqueous phase was extracted with 200 mL of dichlormethane and the combined organic phases were purified with column chromatography on silica using n-heptane/AcOEt (4+1) to yield 11.1 g, (78 mmol, 82% yield) of the title compound as a colourless liquid. MS (m/e): 165.2 (M+Na+)

Provenance & Evidence