Triphenylphosphine → 2-Benzyl-morpholine-4-carboxylic acid tert-butyl ester

Participants

Reaction Steps

The above compound could be made in the following manner: 1 eq. of (2-Hydroxy-ethyl)-(2-hydroxy-3-phenyl-propyl)-carbamic acid tert-butyl ester and 1.2 eq. of triphenylphosphine could be dissolved in toluene. 1.2 eq. of diethylazodicarboxylate in toluene could be added dropwise to the resulting solution at room temperature under argon atmosphere and the mixture could be stirred overnight. The solvent could be removed in vacuo and the material purified by column chromatography.

Provenance & Evidence