Examples of 'nitro groups' in a sentence
Meaning of "nitro groups"
nitro groups - In chemistry, nitro groups are molecules composed of one nitrogen and two oxygen atoms. They are commonly found in compounds such as nitrobenzene and have distinct chemical properties and reactivities that make them important in various industrial and scientific applications
How to use "nitro groups" in a sentence
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nitro groups
Nitro groups are not reduced by aluminium hydride.
Both aromatic and aliphatic nitro groups are reduced to amines.
Substituents may include those as described above as well as nitro groups.
Multiple nitro groups can be present.
As examples of precursor groups cyano groups and nitro groups may be mentioned.
The presence of nitro groups facilitates nucleophilic aromatic substitution.
Examples of these are halogenated initiators and initiators that contain nitro groups.
The nitro groups of the benzaldehyde play a crucial role in these reactions.
In a preferred arrangement the substituted phenol comprises at least two nitro groups.
At least some naturally occurring nitro groups arose by the oxidation of amino groups.
The aromatic nitro compounds may comprise one or more nitro groups.
These methods for reducing nitro groups are well documented in the chemical literature.
Nitro groups present can be hydrogenated to amino groups according to methods known per se.
The reaction of reduction of nitro groups was carried out overnight under hydrogen atmosphere.
Examples of such substituents are halogen, amine or nitro groups.
See also
Unwanted nitro groups attached directly on the polyvinyl backbone are obtained in side reactions.
Its chemical structure consists of four nitro groups attached to one carbon atom.
However, there are alternative methods for reducing nitro groups.
Preferably not more than two nitro groups are present in the compounds of the formula I.
As substituents, especially cyano and nitro groups are used.
Vibrations involving the nitro groups are virtually unchanged upon deuteration of s-trinitrobenzene.
The preferred groups are sulfonyl, carboxyl and nitro groups.
The polycarbonate polymer chains containing the nitro groups are fragmented to yield nitrobisphenol A and urea.
Examples thereof include nitrile, ester and nitro groups.
Deactivating groups such as other nitro groups have an electron-withdrawing effect.
The hydrocarbon may optionally be substituted with 1 or 2 additional nitro groups.
IHEs often combine amino groups and nitro groups in the same molecule.
In other embodiments, cyclic nitro compounds contain two nitro groups.
During this reaction, nitro groups are introduced, and the sulfonic acid group is displaced.
Additionally, SnCl2 is used to selectively reduce aromatic nitro groups to anilines.
The number of nitro groups can vary, but most typically there are 1 or 2 nitro groups.
Possible substituents are for example amide, ester and nitro groups.
Preferred catalysts for the hydrogenation of organic nitro groups comprise those wherein neither L3 is PR3.
Exemplary electron-withdrawing groups include cyano, alkoxycarbonyl and nitro groups.
The reduction of the nitro groups is carried out using SnCl 2, 2H 2 O J.
In general, this reaction comprises a reduction of the nitro groups to amine groups.
A polymer of claim 9 wherein the initiator compound contains one or more nitro groups.
Electrolytic reduction is not realistic in vivo, but nitro groups can be reduced chemically.
The " electron withdrawing group " substituents are preferably halogen atoms, trifluoromethyl or nitro groups.
Allows for the detection of organic molecules containing halogen, nitro groups etc . Photoionization detector, ( PID ).
In still other embodiments, a cyclic nitro compound contains six nitro groups.
Dinitrogen tetroxide could be regarded as two nitro groups (-NO2) bonded together.
In still other embodiments, cyclic nitro compounds contain three or more nitro groups.
Examples of such substituents are alkyl groups, hydroxy groups, halogens, nitro groups and alkenyl groups.
The process of claim 1 wherein the initiator compound contains one or more nitro groups.
Is absent or represents one to three halo, methyl, methoxy or nitro groups.
Examples of substituents include halogen atoms, alkyl groups, and nitro groups.
Preferred substituents include alkyl or alkoxy groups of 1-4 carbons, halogens and nitro groups.
Examples of the substituent include alkyl groups, trifluoromethyl groups, halogen atoms, and nitro groups.
Suitable nitroalkanes have 1 to 6, and preferably 1-4 carbon atoms and contain one or two nitro groups.
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