O-(1-Phenylbutyl)benzyloxyacetaldoxime, a Versatile Reagent for the Asymmetric Synthesis of Protected 1,2-Aminoalcohols and 2-Hydroxymethyl Nitrogen Heterocycles

Abstract

Addition of organometallic reagents to O-(1-phenylbutyl)benzyloxyacetaldoxime in the presence of boron trifluoride diethyl etherate is highly diastereoselective; the resulting hydroxylamines are readily converted into protected 1,2-aminoalcohols and 2-hydroxymethyl nitrogen heterocycles, including the iminosugar 1,4-dideoxy-1,4-imino-D-ribitol, in high enantiomeric excess.