His earliest research on coal tar laid the groundwork for his student Charles Mansfield's practical methods for extracting benzene and toluene and converting them into nitro compounds and amines.
22.
Narcotics are a diverse group of chemicals including : inert gases, aliphatic and aromatic hydrocarbons, chlorinated hydrocarbons, alcohols, ethers, ketones, aldehydes, weak acids and bases, and aliphatic nitro compounds.
23.
Nitration of cinnamaldehyde via acidification of a nitrate salt with H 2 SO 4 also yields the ortho-nitro compound, however it also yields some of the para-nitro compound, which is generally undesired.
24.
Nitration of cinnamaldehyde via acidification of a nitrate salt with H 2 SO 4 also yields the ortho-nitro compound, however it also yields some of the para-nitro compound, which is generally undesired.
25.
While some resulting nitro compounds are shock-and thermally-sensitive explosives, a few are stable enough to be used in munitions and demolition, while others are still more stable and used as pigments in inks and dyes.
26.
Tertiary amines lack an N H proton to form the intermediate enamine . ?-CH-acidic compounds ( nucleophiles ) include carbonyl compounds, nitriles, acetylenes, aliphatic nitro compounds, ?-alkyl-pyridines or imines.
27.
The solubility of picric acid and styphnic acid in water is less than their corresponding mono-and di-nitro compounds, and far less than their non-nitrated percursor phenols, so they may be purified by fractional crystallisation.
28.
Subsequently, Walsh organised trials to ascertain the cause of so many breakages in guns, the testing of powders by the lead cylinder method, the various effects of nitro compounds, and the strain on the barrels of small bores.
29.
A permanganate can oxidize an amine to a nitro compound, an alcohol to a ketone, an aldehyde to a carboxylic acid, a terminal alkene to a carboxylic acid, oxalic acid to carbon dioxide, and an alkene to a diol.
30.
"' Nitropentadecene "', or more precisely ( " E " )-1-nitropentadec-1-ene, is a highly toxic unsaturated nitroalkene, the only aliphatic nitro compound known to be synthesized by insects.
