PROBLEM TO BE SOLVED: To provide a method of selectively manufacturing an aldehyde, a ketone, and a carboxylic acid and an ester from an alcohol, which is friendly to the environment, using supercritical carbon dioxide using no organic medium.川波 肇...
In advance, benzaldehydes are oxidized by peroxynitrite through a mechanism formed by three competitive pathways: a radical attack, peracid oxidation, and a nucleophilic attack in acidic media that ends in a Cannizzaro reaction type, described in acidic media for the first time in this work. A ...
Aldehydes are the result of partial oxidation and the moniker given to them is often derived from the name of the acid it forms. They are used in the manufacture of synthetic resins and for the creation of dyestuffs, flavorings, perfumes, and other chemicals. Some are utilized as preservative...
ChemInform abstract: glycerol oxidation using gold-containing catalysts To address these challenges, the most common catalysts used for the oxidation of glycerol are based on supported metal nanoparticles. The first significant ... Hutchings,G John - 《Cheminform》 被引量: 0发表: 2015年 Development ...
A method is described for the synthesis of α,α-dichloroaldehydes, free from monochloroaldehyde, by chlorination of aldehydes or alcohols in dimethylformamide at 40–90°C. Results are reported for: (yield %) propanal (90), butanal (78), pentanal (78), 3-methylbutanal (90), propanol (64...
A one-pot procedure for the oxidative amidation of aldehydes via the in situ generation of reactive nitrile imine (NI) intermediates has been developed. Distinct from our progenitor processes, mechanistic and control experiments revealed that the NI undergoes rapid oxidation to an acyl diazene species...
In addition, this series of products are rich in functionality for further transformations that were enormously demonstrated48–52. In our cases, the initially obtained allylic allene adducts could be easily transformed in order to determine the ste- reochemical configurations. Upon treatment of 3a ...
Carbon six aldehydes are the first-formed volatile compounds upon pathogen or herbivore attack. Thus, it is assumed that C6-aldehydes might be involved in plant-plant communication. When Arabidopsis was exposed to (E)-2-hexenal vapor, upregulation of some defense genes, lignification of cell ...
Sulphoxide or sulphone analogues can be prepared by oxidation of the basic compounds with the proper number of equivalents of peroxide or peracid. The compounds in which n is 2 are prepared by the scheme the compound IV being the same as in the first scheme above and the steps V to IX ...
To explore the synthetic utility of this atroposelective formal C–C bond insertion, a gram-scale reaction was first carried out, leading to the desired product5ain 85% yield with 92% ee (Fig.4). Furthermore, the axially chiral naphthylpyrrole5acan readily undergo various transformations to acc...