Hydroxyamine hydrochloride → HCID 178456097, compound

Participants

Reaction Conditions

Reaction Steps

A solution of (2-cyano-1-ethyl-2-hydroxy-ethyl)-carbamic acid tert-butyl ester (9.53 g, 44 mmol) in methanol (80 mL) is cooled to 0° C. and treated successively with hydroxylamine hydrochloride (3.05 g, 44 mmol) in methanol (80 mL) and 25% sodium methoxide solution in methanol (10.2 mL). After stirring at 0° C. for 5 minutes the reaction mixture stirred at room temperature for 5 hours and then evaporated. The residue is partitioned between ethyl acetate and water. The organic layer is separated, dried over magnesium sulfate and then evaporated under reduced pressure. The residual oil is subjected to mplc, eluting with a mixture of ethyl acetate and heptane to give {(S)-1-[hydroxy-(N-hydroxycarbamimidoyl)-methyl]-propyl}-carbamic acid tert-butyl ester (3.5 g) as a solid. MS: MH+248.

Provenance & Evidence