Diverse Pathways for the Palladium(II)-Mediated Oxidation of Olefins by <i>tert</i>-Butylhydroperoxide
作者:Jin-Quan Yu、E. J. Corey
DOI:10.1021/ol0262340
日期:2002.8.1
[reaction: see text] New procedures are described for the palladium-catalyzed oxidation of olefins by tert-butylhydroperoxide under slightly basic conditions in CH(2)Cl(2) solution at 0-25 degrees C.
Mild Manganese(III) Acetate Catalyzed Allylic Oxidation: Application to Simple and Complex Alkenes
作者:Tony K. M. Shing、Yeung、Pak L. Su
DOI:10.1021/ol0612298
日期:2006.7.1
Manganese(III) acetate catalyzed allylic oxidation of alkenes to the corresponding enones was investigated, showing excellent regioselectivity and chemoselectivity (functional group compatibility). Delta(5)-Steroids were transformed into bioactive Delta(5)-en-7-ones under a nitrogen atmosphere, whereas simple alkenes were converted into the corresponding enones under an oxygen atmosphere in good yields.
An Unprecedented Method for the Generation of <i>tert</i>-Butylperoxy Radical Using DIB/TBHP Protocol: Solvent Effect and Application on Allylic Oxidation
作者:Yi Zhao、Ying-Yeung Yeung
DOI:10.1021/ol100603q
日期:2010.5.7
tert-Butylperoxy radical was generated with PhI(OAc)(2) and tBuOOH. Ester solvent was found to be critical and the protocol was applied in the allylic oxidation of various olefinic substrates, which gave the corresponding alpha,beta-unsaturated enones in good yield and regioselectivity.