Examples of 'triflic' in a sentence
Meaning of "triflic"
triflic (adjective): Referring to a compound or chemical substance that contains trifluoromethyl and trifluoromethoxy groups. It is commonly used in organic synthesis
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- Related to trifluoromethanesulfonic acid or its derivatives
How to use "triflic" in a sentence
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triflic
Triflic acid is one of the strongest acids.
Only a catalytic amount of triflic acid is needed.
Triflic acid is often used.
An effective amount of a triflic acid equilibration catalyst was used.
Triflic acid methyl ester.
The source of the triflic acid is not critical.
Triflic acid and ammonium triflate also can be employed.
Triflates may be prepared by acylation of hydroxy pyrroles with triflic anhydride.
Addition of triflic acid to polar solvents can be dangerously exothermic.
The initiators are generally protonic acids such as sulfuric acid or triflic acid.
The triflic acid is thus separated from the trifluoromethylacetic acid.
Preferred catalyst include triflic acid and acid ion exchange resins.
Triflic acid reacts exothermically with alcohols to produce ethers and olefins.
The preferred synthesis utilizes DMAP as the base and triflic anhydride as the activating agent.
Triflic acid is widely used especially as a catalyst and a precursor in organic chemistry.
See also
Example 2 demonstrates the effectiveness of triflic acid.
If the triflic acid was present as scavenger the product can be precipitated without neutralization.
Preferably, the acid catalyst used is triflic acid.
The salts of triflic acid are then dispersed on the support according to known methods.
The process as defined by claim 1, comprising the preparation of triflic anhydride.
Triflic acid catalyzes the addition reaction between the carboxylic acid and the dicyclopentadiene.
Additionally, hydrogen chloride triflic acid or sulfuric acid may be used.
Triflic acid is a hygroscopic, colorless liquid at room temperature.
A composition according to claim 1, wherein the triflating agent is triflic anhydride.
Note that triflic acid ( HTf ) can sometimes be referred to as trifluoromethanesulfonic acid.
Reacting the compound of formula 3 with triflic anhydride to produce the compound of formula 4.
When triflic acid is used, the temperature may be controlled to minimize side reactions.
In addition, the presence of free triflic acid can easily result in corrosion phenomena.
Allyldimethylsilyl triflate 2 may be prepared by a protiodesilylation reaction between diallyldimethylsilane and triflic acid.
The dicyclopentadiene, triflic acid, and acetic acid are combined in any desired order.
Examples of strong organic acid promoters that may be used are triflic acid, p-toluenesulfonic acid.
Examples of strong organic acids are triflic acid and trihaloacetic acids, in particular trichloroacetic acid.
Preferred acid anhydrides are acetic anhydride, propionic anhydride, trifluoroacetic anhydride and triflic anhydride.
Suitable activating reagents include triflic anhydride, mesyl anhydride, methanesulfonylchloride phoshorus trichloride, and phosphorus tribromide.
The preferred acids are sulfur-comprising organic acids, in particular triflic acid and methanesulfonic acid.
Triflic acid ( 50 g ) was slowly added vía the addition funnel to the resulting stirred slurry.
Reacting a molecule of formula, with triflic anhydride to produce a molecule of Formula VII,.
At least one hydrofluoric, hydrochloric, hydrobromic or triflic acid.
Reacting a molecule of Formula VI, with triflic anhydride to produce a molecule of Formula VII, and.
The process of claim 20 wherein the catalyst is triflic acid.
Lutidine was charged once about 15 % of triflic anhydride solution had been added.
As indicated above, according to one embodiment, the catalyst is triflic acid.
Reacting a C7 hydroxyl of the first intermediate with triflic anhydride to produce a second intermediate ;.
The process according to claim 1, wherein the catalyst is triflic acid.
In a second step ( 2 ), triflic azide acts as a nucleophile in a substitution reaction with the amino group.
This example illustrates the preparation of the triflic acid modified Y-zeolite.
Additional triflic acid was added dropwise to adjust the pH to 2.4.
Deprotection of 5e to 5f followed by reaction with triflic anhydride provides the triflate 5g.
Triflic anhydride is then slowly added to the solution 115.
The process according to claim 14, wherein the triflating agent is triflic anhydride.
