1,1-Dihydroperoxides were converted into 1,2,4,5-tetraoxanes through condensation with the corresponding ketones in 36-91% yields using phosphomolybdic acid as the catalyst and anhydrous MgSO4 as the water scavenger.
gem-Dihydroperoxides and 1,2,4,5-tetraoxanes were synthesised from aldehydes and ketones catalysed by heteropoly acid/NaY zeolite (HPA/NaY) as a new, effective and reusable solid catalyst using 30% aqueous hydrogen peroxide at room temperature. The reactions proceeded with high rates and excellent yields.
hydroperoxidation on treatment with aqueous hydrogen peroxide (30%) in the presence of 10 mol% stannouschloridedihydrate in acetonitrile under very mild conditions to afford the corresponding gem-dihydroperoxides in satisfactory yields. ketones - aldehydes - gem-dihydroperoxides - aqueous hydrogen peroxide - stannouschloride
Zinc Chloride Anhydrous as New and Effective Catalyst for Conversion of Ketones and Aldehydes to Corresponding Gem-dihydroperoxides
作者:Kaveh Khosravi、Samira Kazemi
DOI:10.1002/jccs.201100605
日期:2012.5
Zinc chloride anhydrous has been used as an efficient and new catalyst for conversion of ketones and aldehydes to corresponding gem‐dihydroperoxides by aqueous hydrogen peroxide (30%) in room temperature with excellent yields and notable reaction times.
Mild and Efficient Strontium Chloride Hexahydrate-Catalyzed Conversion of Ketones and Aldehydes into Corresponding gem- Dihydroperoxides by Aqueous H2O2
SrCl2·6H2O has been shown to act as an efficient catalyst for the conversion of aldehydes or ketones into the corresponding gem-dihydroperoxides (DHPs) by treatment with aqueous H2O2 (30%) in acetonitrile. The reactions proceed under mild and neutral conditions at room temperature to afford good to excellent yields of product.