Water → tert-butyl N-((2R)-1-oxopropan-2-yl)carbamate

Participants

Reaction Steps

Water (2.57 ml, 143 mmol) was added dropwise to a mixture of (R)-tert-butyl (1-hydroxypropan-2-yl)carbamate (17.85 g, 102 mmol) and Dess-Martin Periodinane (60.5 g, 143 mmol) in anhydrous DCM (500 ml) at rt under a nitrogen atmosphere. The reaction was allowed to stir at rt overnight before diluting with diethyl ether and filtering. The filtrate was evaporated in vacuo and the residue diluted with diethyl ether. The organic was then washed with a 1:1 mixture of 10% aq sodium thiosulfate solution: sat. sodium bicarbonate solution, followed by brine and water. The aqueous phase was then back extracted with one portion of diethyl ether, the combined organics were then dried (MgSO4) and evaporated in vacuo to give (R)-tert-butyl (1-oxopropan-2-yl)carbamate (15 g, 87 mmol, 85% yield) as a white solid.

Provenance & Evidence