Examples of 'heating under reflux' in a sentence
Meaning of "heating under reflux"
heating under reflux - This phrase might be related to a scientific or chemical process involving the application of heat under controlled conditions, typically in a laboratory setting. Reflux usually refers to the process of heating a liquid and allowing the vapor to condense and return to the original container
How to use "heating under reflux" in a sentence
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heating under reflux
After heating under reflux overnight the solution was allowed to cool.
The reaction is conducted by cooling with water or by heating under reflux.
Heating under reflux is continued until all of the phosphorus pentasulphide has disappeared.
The solution was stirred with heating under reflux for two hours.
The resultant crude wet carvedilol is dissolved in ethyl acetate by heating under reflux.
The hydrolysis is generally carried out by heating under reflux in concentrated hydrochloric acid.
Heating under reflux was maintained for about 3h.
The reaction is more preferably carried out while heating under reflux.
The reaction mixture is continued heating under reflux throughout the entire formaldehyde solution addition period.
Both steps of this transformation may conveniently be accomplished by heating under reflux in toluene.
The heating under reflux was continued for 4 hours.
The mixture was subjected to heating under reflux for 2 days.
Heating under reflux was continued for 2 h in preheated oil bath.
The mixture was stirred with heating under reflux for 1 hour.
After heating under reflux for an hour, methanol was added dropwise.
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The mixture was stirred with heating under reflux for 2 hours.
After heating under reflux for 4 hours and cooling a precipitate appears.
In general, we find it convenient to effect the reaction whilst heating under reflux.
After two hours of heating under reflux of the ethanol, evaporate to dryness.
Dichloromethane was evaporated, followed by adding methanol and heating under reflux for 5 hours.
This salt may be purified by heating under reflux in 3 liters of benzene for 4 hours.
Heating under reflux was continued for 4 hours followed by cooling in a refrigerator for 1 hour.
When the addition is complete, heating under reflux is carried out for 5 minutes.
After heating under reflux for 3h, the solvent was concentrated in vacuo to a brown foam.
Methanol was added to the reaction mixture, followed by heating under reflux for 1 hour.
Heating under reflux in first suitable solvent, cooling and isolating desired polymorph ; or.
The resulting mixture was then stirred whilst heating under reflux for 1 hour.
Heating under reflux was continued for 20 minutes then the mixture cooled to ambient temperature.
Then, the reaction solution was stirred with heating under reflux for three hours.
After heating under reflux for 3 h to conduct the iodination, the reaction liquid was concentrated.
The mixture was stirred under a nitrogen atmosphere while heating under reflux for 4 hours.
After heating under reflux for 4 hours, the product is concentrated then crystallised in isopropyl ether.
The mixture was subjected to heating under reflux for 21 hours.
After heating under reflux for 1 hour the mixture was cooled and the solution concentrated.
The mixture was stirred with heating under reflux for 30 minutes.
After heating under reflux overnight, 50 ml of diethyl ether are added.
Further 20 mg of methyl iodide was added, followed by another hour 's heating under reflux.
After completion of the addition, the heating under reflux conditions is maintained for a further 2 hours.
This reaction may be carried out for 2 to 3 hrs with heating under reflux.
After heating under reflux for 2 h, the mixture became homogeneous.
Ethanol ( 2 mL ) was added to the resulting residue which was dissolved with heating under reflux.
After heating under reflux for 3 hours, the mixture is concentrated in vacuo.
A 20 % sodium hydroxide aqueous solution was added to the precipitate, followed by heating under reflux overnight.
After heating under reflux for 7 hours, the reaction mixture is cooled.
After the addition of zinc acetate has ended, heating under reflux is continued for 10 hours.
After heating under reflux for 1h, a white solid precipitated out of solution.
After dissolution, the mixture was additional stirred at heating under reflux for 2 hours and 40 minutes.
Upon heating under reflux for 24 hrs . the mixture became homogeneous.
Thereafter, the reaction solution was stirred with heating under reflux for nine hours and 30 minutes.
After heating under reflux for 5 hours, there is no longer any methanol formed.
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