A mild oxidizing reagent for alcohols and 1,2-diols: o-iodoxybenzoic acid (IBX) in DMSO
作者:Marco Frigerio、Marco Santagostino
DOI:10.1016/0040-4039(94)80038-3
日期:1994.10
o-Iodoxybenzoic acid (IBX) smoothly oxidizes primary and secondary alcohols to aldehydes and ketones, respectively. 1,2-Diols are converted to α-ketols or α-diketones without any oxidative cleavage of the glycol CC bond. IBX oxidations are easily conducted in DMSO solution at room temperature, with yields ranging from good to quantitative.
reaction of aromaticaldehydes and arylketones with a silylboronate in the presence of a catalytic amount of a CuCl-N-heterocyclic carbene (NHC) complex and a stoichiometric amount of alkoxide base yielded cross-coupled 1,2-diol derivatives. A reaction pathway is proposed that involves the catalytic formation of a nucleophilic α-silyloxybenzylcopper(I) species from the aromaticaldehyde and its subsequent
A process for the selective oxidation of a primary or secondary alcohol to an aldehyde or ketone and for the oxidation of a 1,2-diol to an .alpha.-ketol or .alpha.-diketone, which comprises contacting the alcohol or 1,2-diol with o-iodoxybenzoic acid. This process is suited for selective oxidation of alcohols containing easily oxidizable groups, such as amino or thioether groups and easily oxidizable heterocycles.
Process for the oxidation of primary and secondary alcohols to aldehydes and ketones and for the oxidation of 1,2-diols to alpha-ketols and alpha-diketones
The invention provides a process for the selective oxidation of a primary or secondary alcohol to an aldehyde or ketone and for the oxidation of a 1,2-diol to an α-ketol or α-diketone which comprises contacting the alcohol or 1,2-diol with o-iodoxybenzoic acid.