Sulfamic acid has been used as an active, low-cost and reusable solid catalyst for conversion of ketones and aldehydes to corresponding gem-dihydroperoxides using 30 % aqueous hydrogen peroxide at room temperature. The reactions proceed 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
We developed an efficient dihydroperoxidation protocol of various carbonyl compounds with molecularoxygen and anthraquinone in 2-propanol under visible lightirradiation with a fluorescent lamp, which produced corresponding gem-dihydroperoxides in high yields.
(SSA) was found to efficiently catalyze the conversion of aldehydes and ketones directly into the corresponding gem-dihydroperoxides (DHPs) on treatment with aqueous 30% H2O2 at room temperature. Mild reaction conditions, good to excellent yields, short reaction times, low environmental impact, and recyclability of the catalyst are the main advantages of this synthetic method. GRAPHICAL ABSTRACT
AlCl3.6H2O as a catalyst for simple and efficient synthesis of gem-dihydroperoxides from ketones and aldehydes using aqueous H2O2
作者:D. Azarifar、K. Khosravi
DOI:10.1007/bf03246556
日期:2011.12
AlCl3.6H2O was explored as an efficient catalyst for the synthesis of ingem-dihydroperoxides (DHPs) from ketones and aldehydes. The reactions took place within a short period of time using (30%) aqueous H2O2 as a “green” oxidant in acetonitrile under neutral conditions at room temperature to afford the products in high yields.
研究了AlCl 3 .6H 2 O作为从酮和醛合成ingem-dihydroperoxides(DHPs)的有效催化剂。在室温下,在中性条件下,使用(30%)H 2 O 2水溶液作为乙腈中的“绿色”氧化剂,可在短时间内进行反应,从而以高收率获得产物。