These include tobacco-specific nitrosamines (TSNAs), carbonyl compounds
, metals, volatile organic compounds (VOCs), and phenolic compounds.
In a previous study, the occurrence of carbonyl compounds
(formaldehyde, acetaldehyde, acrolein, furfural and EC) was reported in all stages of vinification, including grapes and the respective wines (FERREIRA et al., 2018).
Schiff bases 1-17 were synthesized by condensation of 1-aminoanthracene-9,10-dione with variety of aromatic and aliphatic carbonyl compounds
using reported catalytic method (Fareed et al., 2013).
However, the isomers in low molecular carbonyl compounds
such as acetone/propionaldehyde and butanone/butyraldehyde were difficult to analyze by the APCI-MS/MS due to the same molecular mass.
More than 100 volatile flavour compounds have been detected in yoghurt and these include carbonyl compounds
, alcohols, acids, esters, hydrocarbons, aromatic compounds, sulfur-containing compounds, and heterocyclic compounds [11 - 14].
Application of the Swern oxidation to the manipulation of highly reactive carbonyl compounds
, Journal of organic chemistry, 50(12): 2198-2200.
A class of carbonyl compounds
is called [alpha],[beta]-unsaturated carbonyls, also referred to as electrophilic carbonyls.
The highly significant difference (pless than 0.01) was recorded for the content of phenols, carbonyl compounds
, cyanides, dissolved oxygen, biological oxygen demand, total soluble salts, total dissolved salts, nitrates and sulphates, whereas, the concentration of magnesium, potassium and oil and grease differed significantly (pless than 0.05) with respect to the sampling points on average basis.
MGO and glyoxal (GO) are reactive carbonyl compounds
that are by-products of auto-oxidation of glucose, lipid peroxidation and protein glycation, a process where protein and glucose interact, interfering with the function of protein in the body.
This reaction takes place between carbonyl compounds
and active methylene compounds for the production of carbon-carbon bond, and it is considered as one of the most important methods to produce functionalized alkenes.
(2006) demonstrated that volatile 3MH and 4MMP could be formed from other carbonyl compounds
In most cases these precursors have been prepared from carbonyl compounds
via reductive alkylation of protected hydrazines [3-5] (Scheme 1, A).
are known to instigate harmful chemical reactions) and nitrogen produced by glycation.
From the generals of structure and bonding and functional groups, stereochemistry,and reactivity to the specifics of alkynes, alkenes, benzenes, carbonyl compounds
et al., it's all here.