1.(Elements & Compounds) any organic compound containing the group -CHO. Aldehydes are oxidized to carboxylic acids and take part in many addition reactions 2.(Chemistry) (modifier) consisting of, containing, or concerned with the group -CHO:aldehyde group or radical. ...
According to the present invention, an aromatic aldehydes by the oxidation of aromatic acids include the use of molecular oxygen in an aromatic aldehyde or alkaline medium molecular oxygen-containing gas is oxidized in the presence of a catalyst. 所述制备方法的特征在于氧化在有效量的钯和/或铂型...
Aldehydes are formed by partial oxidation of primary alcohols and form carboxylic acids when they are further oxidized. The common name for an aldehyde is often derived from the name of the acid it forms; the IUPAC name is usually derived from the name of the alcohol from which it is ...
These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react ...
Aldehydes can be reduced to alcohols or oxidized to carboxylic acids, and undergo a variety of addition and condensation reactions, for example, addition of cyanide in the cyanohydrin synthesis, or condensation with another aldehyde in aldol reactions. History The name may be derived from the ...
. A recent report indicates that MoO2(Etcysteine)2catalyzes the oxidation of PhCHO by O2, which is relatively slow even at 60°. Since product analysis was not reported, it is not certain that PhCHO is oxidized to PhCOOH. The ligand may be oxidized to diethylcystine, since it is well ...
Chemical properties White to brown or blue-gray needle crystal (crystallization in ether); sweet woody fragrance, fragrant grass aroma and strong flavor of vanilla blue; oxidized into odorless 3,4-dimethoxybenzoic acid (veratric acid) in the air; Melting point 43~45℃; Insoluble in cold water...
Toxic benzene metabolites are produced locally in the BM due to its expression of cytochrome p450 enzymes (e.g., CYP2E1 and CYP1B1). Benzene metabolites are also oxidized by peroxidases and converted to several biologically reactive quinones. Peroxidase and/or phenoxy radical–mediated oxidation of...
Alcohol is first converted into acetaldehyde by ADH and cytochrome p450 2E1 (CYP2E1) via oxidative degradation, and the acetaldehyde is then oxidized to non-toxic acetate by ALDH and the coenzyme NAD or NADP for excretion [1]. The further conversion of reactive aldehyde by ALDH family ...
An enzyme fraction which oxidizes lactaldehyde to lactic acid has been purified from goat liver. This enzyme was found to be identical with the cytosolic aldehyde dehydrogenase. Lactaldehyde was found to be primarily oxidized by this enzyme. Almost 90% of the total lactaldehyde-oxidizing activity ...