Examples of 'trifluoromethyl group' in a sentence
Meaning of "trifluoromethyl group"
trifluoromethyl group - In organic chemistry, this phrase refers to a specific functional group consisting of three fluorine atoms bonded to a carbon atom
How to use "trifluoromethyl group" in a sentence
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trifluoromethyl group
A particularly preferred haloalkyl group is a trifluoromethyl group.
A methyl group and trifluoromethyl group are particularly preferable.
The haloalkyl group may include a trifluoromethyl group.
A trifluoromethyl group is preferred.
The most preferred haloalkyl group is a trifluoromethyl group.
In particular, the trifluoromethyl group is more preferable.
Examples thereof include a difluoromethyl group and a trifluoromethyl group.
The perfluoroalkyl group includes trifluoromethyl group and pentafluoroethyl group.
The above haloalkyl group is specifically exemplified by trifluoromethyl group.
Preferably the alkyl group comprises a trifluoromethyl group for instance in the terminal position.
A process for the preparation of compounds containing a difluoromethylene or trifluoromethyl group.
Is preferably a trifluoromethyl group.
It is a strong carboxylic acid due to the influence of the electronegative trifluoromethyl group.
Among these groups, a trifluoromethyl group is preferred.
Several drugs and agrochemicals contain only one fluorine center or one trifluoromethyl group.
See also
Especially, the trifluoromethyl group is preferable.
Preferred examples are a halogen atom such as chlorine and a haloalkyl group such as trifluoromethyl group.
Among them, trifluoromethyl group is preferable.
It may be in particular a trifluoromethyl group.
Of the latter, the trifluoromethyl group or the pentafluoroethyl group is preferred.
There is other embodiment in which a trifluoromethyl group is preferred.
A methyl group and a trifluoromethyl group are preferred, and a methyl group is still more preferred.
In which R f has the meaning given previously but preferably represents a trifluoromethyl group.
In an alternative embodiment, the di - or trifluoromethyl group is present on a separate segment.
R ¹ is preferably a hydrogen atom or a methyl, methylthio or trifluoromethyl group.
For example, a difluoromethyl group, a trifluoromethyl group or apentafluoroethyl group may be mentioned.
R ₇ preferably represents a hydrogen atom or an alkyl or trifluoromethyl group.
Among the organofluorides, the trifluoromethyl group is the most important motif used.
R ₄ preferably represents a hydrogen or chlorine atom or a trifluoromethyl group.
The fluoromethyl, difluoromethyl and trifluoromethyl groups are most preferred, especially the trifluoromethyl group.
Is more preferably a methyl group, a trifluoromethyl group.
After iodination, the trifluoromethyl group can be introduced using a strong base and ethyl trifluoroacetate.
By way of example, mention may in particular be made of the trifluoromethyl group.
The trifluoromethyl group occurs in certain pharmaceuticals, drugs, and abiotically synthesized natural fluorocarbon based compounds.
A halogenated lower alkyl group, trifluoromethyl group is preferred.
A preferred perhalognated alkyl moiety is a pentafluoroethyl, or especially a difluoro - or a trifluoromethyl group.
An additional stabilization is achieved by the trifluoromethyl group as a strong electron-withdrawing group.
R ₆ preferably represents a hydrogen or fluorine atom or an alkyl, alkoxy or trifluoromethyl group.
A halogen atom, especially a chlorine atom, and a trifluoromethyl group are the suitable substituents for the meta-substituent.
As substituents of the heterocyclic group, preference is given to a methyl group or a trifluoromethyl group.
Specifically, those wherein R1 is a trifluoromethyl group are particularly preferable.
Specific examples include a fluoromethyl group, a difluoromethyl group and a trifluoromethyl group.
Specifically, the compounds wherein R1 is a trifluoromethyl group are particularly preferable.
For example, there may be mentioned a chloromethyl group, a chloroethyl group and a trifluoromethyl group.
R3 is preferably a hydroxyl group, a trifluoromethyl group or a hydrogen atom.
For example, a methyl group in a fluorine-substituted alkyl residue can be present as a trifluoromethyl group.
Preferably, it is trifluoromethyl group.
Preferred examples of the halogenoalkyl group include fluoromethyl group, difluoromethyl group and trifluoromethyl group.
Is more preferably a methyl group, a trifluoromethyl group and the like.
Preferred compounds of general formula ( I ) are those wherein R ¹ represents a trihalomethyl and more preferably a trifluoromethyl group.
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Process for the preparation of trifluoromethyl iodide
Any excess trifluoromethyl bromide can be recycled
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