Trimethylsilyldiazomethane → HCID 54219368, compound

Participants

Reaction Steps

To a solution of 2(R)-(4-methoxy-2,3,6-trimethylbenzenesulfonylamino)-3-tert-butoxypropionic acid (2.79 g, 7.5 mmol) in 70% methanol/methylene chloride (50 mL) at 0° C. was added 1M trimethylsilyldiazomethane in hexanes (22.5 mL, 23 mmol). After 45 min., the reaction mixture was concentrated and chromatographed using preparative chromatography (9% ethyl acetate-hexanes) to afford 2(R)-(4-methoxy-2,3,6-trimethyl-benzenesulfonylamino)-3-tert-butoxypropionic acid methyl ester (2.4 g).

Provenance & Evidence