Examples of 'alkyl substituents' in a sentence
Meaning of "alkyl substituents"
Alkyl substituents: In organic chemistry, alkyl substituents are groups of atoms derived from alkane hydrocarbons by removing one hydrogen atom
How to use "alkyl substituents" in a sentence
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alkyl substituents
A wide variety of alkyl substituents have been investigated.
Alkyl substituents may optionally be present on the ring.
Particularly preferred alkyl substituents are hydroxyl groups.
Any alkyl substituents may be optionally substituted.
This rearrangement is also possible with alkyl substituents.
The alkyl substituents may be unsubstituted or substituted.
This imposes constraints on preferred alkyl substituents of such oils.
Branched alkyl substituents are particularly suitable.
The alkylphenyl groups may contain up to three alkyl substituents.
More preferred alkyl substituents are halo and aryl.
Examples of sterically large substituents are secondary or tertiary alkyl substituents.
Particularly preferred alkyl substituents are methyl and trifluoromethyl.
A more preferred alkylaryl compound contains one or two alkyl substituents.
Preferred alkyl substituents are hydroxy groups.
Mixtures of alkyl phenols with different alkyl substituents may be used.
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Examples of alkyl substituents are as described above.
Phenol and alkylated phenols having up to three alkyl substituents are preferred.
Up to four alkyl substituents may optionally be present on the ring.
Preferably the phenol carries one or more optionally substituted alkyl substituents.
Preferably alkyl substituents are unsubstituted.
The starting alkyl phenol may contain one or more alkyl substituents.
The alkyl substituents include cycloalkyl groups such as cyclohexyl groups.
Effects of alkyl substituents.
The alkyl substituents on the heteroaryl groups may be unsubstituted or substituted.
A displacement reaction is carried out for adding cyclopropylacetylene group to alkyl substituents.
The alkyl substituents on the alkaryl groups may be unsubstituted or substituted.
There may be one or more linear or branched alkyl substituents on the phenol rings.
The two alkyl substituents on each aryl group may be the same or different.
An unsubstituted amino group or one substituted with one or two alkyl substituents is preferred.
Only amino acids with alkyl substituents have been copolymerized in this manner.
References to dialkylamino groups include amino groups where the alkyl substituents are different.
The alkyl substituents generally contain from about one to about six carbon atoms.
Heteroaryl substituents are unsubstituted or substituted as discussed above for heteroaryl and alkyl substituents.
The alkyl substituents preferably contain from about one to about six carbon atoms.
An unsubstituted amino group or one substituted with one or more alkyl substituents is preferred.
The position of specific alkyl substituents can optionally be specifically designated using the same nomenclature.
The cyclic oligosaccharides are preferably substituted only by the unsubstituted alkyl substituents mentioned hereinabove.
Alkyl substituents may have additional amino groups that provide more than one reactive nitrogen center.
Each of the alkylated styrenes or vinyl naphthalenes may contain one or more alkyl substituents.
Preferably, the three alkyl substituents are identical.
The cyclic oligosaccharides for use herein must have one or more unsubstituted alkyl substituents.
Alkyl substituents include methyl, ethyl or propyl groups.
In certain embodiments, alkyl substituents may be lower alkyl substituents.
Alkyl substituents may be halogenated, particularly perchlorinated and perfluorinated.
In addition, diastereomers may exist depending upon branching of alkyl substituents.
Preferred alkyl substituents are methyl, ethyl and propyl.
In the compound on the right, the diene is homoannular with 4 alkyl substituents.
The alkyl substituents may be linear, branched or cyclic.
However, in this case also it is preferable to use extractants bearing alkyl substituents.
In certain aspects, alkyl substituents may be lower alkyl substituents.
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Substituents at the meta position influence regioselectivity
A wide variety of alkyl substituents have been investigated
The substituents and their positions are indicated
Examples of using Alkyl
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An alkyl mercaptane is used as chain modifying agent
Formally they are alkyl esters of nitrous acid
Alkyl nitrates are employed as reagents in organic synthesis
