Examples of 'amine base' in a sentence
Meaning of "amine base"
amine base: a chemical compound that contains an amine group which can act as a base by accepting a proton
How to use "amine base" in a sentence
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amine base
The preferred tertiary amine base is triethylamine.
The cations can be a conjugate acid of an amine base.
Typically the tertiary amine base is triethyl amine.
The third base is an inorganic or tertiary amine base.
The amine base is preferably a cinchona alkaloid or derivative thereof.
The second base is a tertiary amine base.
A representative amine base is triethylamine.
It is preferred that the base is not an amine base.
The base may be a tertiary amine base or an excess of the aniline itself.
The base is preferably an amine base.
In a further aspect the amine base is di-isopropylethylamine.
The polyacrylic acid polymer is neutralized using an amine base.
Amine base such as triethylamine and a suitable solvent e . g.
Z represents a metal or an amine base.
Preferably, the mercaptan and amine base are added as a solution in the reaction solvent.
See also
The reaction can be conducted with or without amine base.
Suitably, at least 3 equivalents of the amine base are used in the instant reaction process.
The transesterification reaction is performed in the presence of an organic amine base.
A suitable base would be sodium hydride or an organic amine base such as diisopropylethylamine.
The ring opening agent is preferably trimethylsilyliodide followed by a tertiary amine base.
Again, an aprotic solvent and a tertiary amine base will generally be used.
A process of claim 5 wherein said alkalizing agent is an organic amine base.
Preferably, the tertiary amine base is a trialkylamine, more preferably triethylamine, diethylisopropylamine or tributylamine.
A preferred ether solvent is dioxan and a preferred tertiary amine base is triethylamine.
Again, the amine base is used to facilitate the vital in situ racemisation process.
This reaction may be carried out in the presence of amine base catalyst.
In order to extract the amine base most completely, the aqueous layer was further extracted.
Treatment of the resulting intermediate with a secondary or tertiary amine base affords the corresponding ketone.
Adding and a tertiary amine base to mixture of step ( a ) to provide the compound of Formula A.
Preferably, triethylamine is used as the amine base.
This reaction is carried out in an organic amine base such as diisopropylethylamine ( DIEA ).
Sodium hydroxide or potassium hydroxide or a tertiary amine base e . g.
The preferred amine base for use in this transformation is N, N - diisopropylethylamine.
Preferably, the amine is a primary or secondary amine base.
Typically, however, the amine base is triethylamine.
In one embodiment, the cations can be a conjugate acid of an amine base.
The phosphorylating reagent is preferably accompanied by an amine base during the addition, preferably pyridine.
The reaction is best performed in the presence of a base, preferably an amine base.
In some cases, it is advantageous to add an amine base such as N-methylmorpholine.
A process as claimed in claim 1, which comprises using triethylamine as a tertiary amine base.
A method according to claim 11 wherein the tertiary amine base is diisopropylethyl amine.
The process of claim 5, wherein the non-aqueous organic or inorganic base is a tertiary amine base.
The addition of triphosgene in the presence of an amine base affords substituted hydantoin A39.
Most typically, the reaction is carried out in the presence of a non-nucleophilic amine base.
The base may be, for example, an amine base such as triethylamine.
A process according to Claim 1 in which triethylamine is the tertiary amine base.
A process according to claim 2 wherein the amine base is N-methylpiperazine.
Diisopropylethyl amine ( also known as Hunig 's Base ) is a particularly preferred hindered amine base.
It is advantageous to use an amine base and, most preferably, to use DBU.
The preferred transition metal halide salt is titanium-chloride and a preferred tertiary amine base is triethylamine.
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