Examples of 'p-toluenesulfonic acid' in a sentence
Meaning of "p-toluenesulfonic acid"
P-toluenesulfonic acid is an organic compound that is commonly used as a strong organic acid in various chemical reactions and industrial processes. It is derived from toluene and possesses acidic properties, making it useful in catalysis and as a reagent in organic synthesis. P-toluenesulfonic acid is employed in pharmaceutical, agricultural, and chemical manufacturing sectors
How to use "p-toluenesulfonic acid" in a sentence
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p-toluenesulfonic acid
The catalytic amount of p-toluenesulfonic acid was added.
The p-toluenesulfonic acid can be in the form of anhydride or hydrate.
Preference is given to using p-toluenesulfonic acid monohydrate.
The p-toluenesulfonic acid may be added in the form of a p-toluenesulfonic acid monohydrate.
A catalytic amount of p-toluenesulfonic acid were added thereto.
Mention may in particular be made of sulfuric acid or p-toluenesulfonic acid.
Preferred are p-toluenesulfonic acid and acetic acid.
The acid used therein includes p-toluenesulfonic acid.
It is preferably p-toluenesulfonic acid because it can be purified to a particularly high level.
The most preferred acid is p-toluenesulfonic acid.
Alternatively, p-toluenesulfonic acid or an acidic ion exchange resin can be used as the catalyst.
The dehydrating agent may be p-toluenesulfonic acid.
Dissolving p-toluenesulfonic acid in a second solvent or combination of solvents to form a second solution ; and.
Examples of the acid include p-toluenesulfonic acid.
P-Toluenesulfonic acid may be used either in anhydrous form or in the form of hydrates.
See also
The acid used herein is p-toluenesulfonic acid.
The p-toluenesulfonic acid was purified by a Dean and Stark method using benzene as the solvent.
Methanesulfonic acid or p-toluenesulfonic acid is preferable.
The preferred catalyst in practicing the invention is p-toluenesulfonic acid.
Preferred conditions are p-toluenesulfonic acid in toluene at a refluxing temperature.
A particularly suitable catalyst is p-toluenesulfonic acid.
Preferred acids are p-toluenesulfonic acid and boron trifluoride.
Also preferred is use of hydrogen chloride and p-toluenesulfonic acid.
The preferred is p-toluenesulfonic acid monohydrate.
A preferred acid catalyst for the reaction is p-toluenesulfonic acid.
Because of this use of p-toluenesulfonic acid is avoided in industrial processes.
This is preferably conducted in the presence of p-toluenesulfonic acid in toluene.
P-Toluenesulfonic acid is preferably used.
This was dissolved in acetone and p-toluenesulfonic acid was added.
Among them, p-toluenesulfonic acid is more preferable.
A preferred catalyst is p-toluenesulfonic acid.
P-toluenesulfonic acid of the following formula,.
Examples of an acid catalyst include p-toluenesulfonic acid or methanesulfonic acid.
The resultant mixture was heated to reflux along with a catalytic amount of p-toluenesulfonic acid.
A small amount of an acid such as p-toluenesulfonic acid may be advantageously added.
As such, its absorption does not overlap the absorption of p-toluenesulfonic acid.
Preferably hydrochloric acid and p-toluenesulfonic acid are used in accordance with the invention.
The acid may be an organic acid such as p-toluenesulfonic acid.
Among these compounds, the use of p-toluenesulfonic acid esters or benzenesulfonic acid esters is preferred.
Examples of the catalyst which can be used include p-toluenesulfonic acid.
Tyrosine benzyl ester as its p-toluenesulfonic acid salt was obtained from Sigma Chemical Company.
Preferred are organic acids with more preference given to p-toluenesulfonic acid.
Among them, p-toluenesulfonic acid is preferred.
Examples of the acid include sulfuric acid and p-toluenesulfonic acid.
The product, as a p-toluenesulfonic acid salt, is isolated by filtration.
It is also beneficial to add a small amount of an acid such as p-toluenesulfonic acid.
An additional 50 mg of p-toluenesulfonic acid monohydrate and 4 mL of dimethoxymethane was added.
To accelerate the reaction, an acidic catalyst such as p-toluenesulfonic acid can be used.
Of these, p-toluenesulfonic acid is preferred.
Favored acidic reagents are mineral acids, p-toluenesulfonic acid and silica gel.
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