Jw. Bode et Em. Carreira, A mild and chemoselective method for the reduction of conjugated isoxazolines to beta-hydroxy ketones, ORG LETT, 3(10), 2001, pp. 1587-1590
A new procedure for the selective reduction of conjugated Delta (2)-isoxazo
lines to the corresponding unsaturated beta -hydroxy ketones is described.
The use of SmI2 as the reducing agent and B(OH)(3) to hydrolyze the resulti
ng imine results in a mild, convenient, and chemoselective protocol for thi
s otherwise difficult transformation and complements existing methodology f
or the preparation of beta -hydroxy ketones via nitrile oxides.