作者:Paolo N. Grenga、Eric G. Stoutenburg、Ronny Priefer
DOI:10.1016/j.tetlet.2012.06.137
日期:2012.9
The photolytic decay of a library of para -substituted dibenzylic sulfites has been evaluated by UV radiation in a Srinivasan–Griffin–Rayonet photochemical reactor in various deuterated solvents. The decay for each dibenzylic sulfite was examined with respect to Swain and Lupton’s field constant, FF. The rate of photolytic decay varies depending on the identity of the benzyl substituents. Furthermore
Solvent-free selective oxidation of primary alcohols-to-aldehydes and aldehydes-to-carboxylic acids by molecular oxygen over MgO-supported nano-gold catalyst
作者:Vasant R. Choudhary、Deepa K. Dumbre
DOI:10.1016/j.catcom.2011.07.001
日期:2011.10
Magnesium oxide supported nano-gold catalyst (prepared by the homogeneous deposition precipitation technique) showed high activity/selectivity and excellent reusability in the oxidation of different primary alcohols and aldehydes to corresponding aldehydes and carboxylic acids, respectively, by molecular oxygen (under atmospheric pressure) in the absence of any solvent. Influence of the catalyst calcination temperature (400-900 degrees C), reaction temperature (50-120 degrees C) and use of different solvents (viz. toluene. p-xylene, DMF or DMSO) on the oxidation reaction has also been studied. (C) 2011 Published by Elsevier B.V.