A study of the oxidehydration of 1,2-propanediol to propanoic acid with bifunctional catalysts
作者:Claudia Bandinelli、Barbara Lambiase、Tommaso Tabanelli、Jacopo De Maron、Nikolaos Dimitratos、Francesco Basile、Patricia Concepcion、Jose Manuel Lopez Nieto、Fabrizio Cavani
DOI:10.1016/j.apcata.2019.05.036
日期:2019.7
(ODH) of 1,2-propanediol to propionic acid has been studied as an intermediate step in the multi-step transformation of bio-sourced glycerol into methylmethacrylate. The reaction involves the dehydration of 1,2-propanediol into propionaldehyde, which occurs in the presence of acid active sites, and a second step of oxidation of the aldehyde to the carboxylic acid. The two reactions were carried out using
Mercury-photosensitized dehydrodimerization reactions with cyclic ethers
作者:O Genkinger、J Bargon
DOI:10.1016/0040-4039(96)01536-5
日期:1996.9
Mercury-photoinduced radical reactions with cyclic diethers lead to the expected bicyclic products. In addition, new non-symmetric dimerization products are obtained as byproducts of this reaction. The generation of these new species can be explained through selective radical-induced rearrangement (β-scission).
Photochemically initiated reactions of substituted 1,3-dioxolanes and 1,3-oxathiolanes in CFCl3
作者:J.W. Hartgerink、L.C.J. van Der Laan、J.B.F.N. Engberts、Th.J. de Boer
DOI:10.1016/s0040-4020(01)91643-6
日期:1971.1
from the substrate to give intermediate cyclic (thio)acetal radicals which can be trapped efficiently by 2-nitroso-2-methylpropane in inert solvents. The resulting nitroxides are identified by their ESR hfs-constants. No ring-opened (thio)ester radicals could be trapped. The course of photolysis of optically active 2RS,4R-(−)-2-methyl-4-phenyl-1,3-dioxolane and other (racemic) 2,4-disubstituted-1,3-dioxolanes