Examples of 'trifluoroacetic anhydride' in a sentence
Meaning of "trifluoroacetic anhydride"
trifluoroacetic anhydride: Trifluoroacetic anhydride is a chemical compound commonly used in organic synthesis as an acylating agent and derivatization reagent
How to use "trifluoroacetic anhydride" in a sentence
Basic
Advanced
trifluoroacetic anhydride
The trifluoroacetic anhydride is added at a controlled rate.
Process for the preparation of trifluoroacetic anhydride.
Trifluoroacetic anhydride is preferably used as dehydrating agent.
The latter is dehydrated in presence of trifluoroacetic anhydride.
Trifluoroacetic anhydride was added continuously to the receiver vessel.
More preferable examples include trifluoroacetic anhydride.
Of trifluoroacetic anhydride are added dropwise.
The proteins are treated with trifluoroacetic anhydride.
From trifluoroacetic anhydride.
The preferred acid chloride or anhydride is trifluoroacetic anhydride.
The preferred conditions are trifluoroacetic anhydride and trifluoroacetic acid at refluxing temperatures.
The amide is then dehydrated using trifluoroacetic anhydride.
Trifluoroacetic anhydride may be prepared from trifluoroacetic acid by dehydrating with excess α-halogenated acid chlorides.
An exotherm occurs as the excess trifluoroacetic anhydride is hydrolyzed.
Swern oxidation involves the activation of dimethylsulfoxide using triethylamine and oxalylchloride or trifluoroacetic anhydride.
See also
The reaction is carried out with trifluoroacetic anhydride in trifluoroacetic acid.
This patent application does not describe any example of preparation of trifluoroacetic anhydride.
The preferable conditions are pyridine and trifluoroacetic anhydride in dichloromethane at room temperature.
The nitro group of intermediate C is provided by reaction with ammonium nitrate in trifluoroacetic anhydride.
Reaction with a disubstituted alkyne with trifluoroacetic anhydride can give a mixture of regioisomers.
Also, triethylamine is used in an amount double as much of that of trifluoroacetic anhydride.
Cyclization of 3 in a mixture of trifluoroacetic anhydride and trifluoroacetic acid produces compound 4.
Preferable examples include trifluoroacetic acid and trifluoroacetic anhydride.
Of trifluoroacetic anhydride ( TFAA ) are added drop by drop by a dropping funnel.
A preferred dehydrating agent is trifluoroacetic anhydride.
Trifluoroacetic anhydride ( 5 equivalents ) was added at a rate to maintain a gentle reflux.
Trifluoroacetyl chloride or trifluoroacetic anhydride.
The yield of trifluoroacetic anhydride based on the trifluoroacetic acid consumed was 88 %.
The reagent is a suitable dehydrating agent such as trifluoroacetic anhydride.
Trifluoroacetic anhydride ( 1mâ„“ ) was added dropwise and the resulting mixture was stirred far 1h.
The amine is preferably protected as the amide with trifluoroacetic anhydride.
Trifluoroacetic anhydride ( TFAA ) is the acid anhydride of trifluoroacetic acid.
Examples of the dehydrating agent include trifluoroacetic anhydride and the like.
Trifluoroacetic anhydride - sodium iodide mixture ( TFAA-I ) reacts with nitrones with the release of iodine.
The secondary aliphatic nitrogen of the oligonucleoside is protected with trifluoroacetic anhydride and triethylamine.
Excess trifluoroacetic anhydride ( TFAA ) was added.
Preferably, acetic anhydride or trifluoroacetic anhydride is used.
Suitable dehydrating agents include, for example, sulphur trioxide-dioxane complex, oxalyl chloride and trifluoroacetic anhydride.
Examples of suitable reagents include, such as trifluoroacetic anhydride and acetic anhydride.
Trifluoroacetic anhydride ( 2 ml ) was added neat.
In one embodiment, the acylating reagent is trifluoroacetic anhydride.
This solution is added to trifluoroacetic anhydride ( 1.5 mL ) cooled in an ice bath.
Acid anhydrides include trichloroacetic anhydride, trifluoroacetic anhydride.
A second portion of trifluoroacetic anhydride ( 0.5 g ) was added dropwise under vigorous stirring.
In one embodiment, the cyclising agent is trifluoroacetic anhydride.
Trifluoroacetic anhydride ( 6.8ml ) was then added dropwise under an atmosphere of nitrogen.
Particularly preferred is urea-hydrogen peroxide complex and trifluoroacetic anhydride.
Acylation of the amine functionality with trifluoroacetic anhydride afforded the corresponding amides 36.
For example, in some embodiments the alcohol activating reagent is trifluoroacetic anhydride.
Furthermore, 20g of dichloromethane and 10g of trifluoroacetic anhydride were added and stirred at room temperature.
You'll also be interested in:
Examples of using Trifluoroacetic
Show more
The trifluoroacetic acid used is a commercial product
Oxidation of trifluoroethanol yields trifluoroacetaldehyde or trifluoroacetic acid
Trifluoroacetic acid forms an azeotropic mixture in water
Examples of using Anhydride
Show more
Control of acetic anhydride and potassium permanganate
A second layer containing a maleic anhydride copolymer
This simple acid anhydride is a colourless liquid
