refluxing वाक्य
उदाहरण वाक्य
मोबाइल
- With pyridine as a base and solvent, refluxing conditions are required.
- Typically, the reaction is carried out at less than refluxing temperatures.
- An example of this would be the synthesis of porphyrins in refluxing propionic acid.
- Therefore, many surgeons prefer the refluxing type which is simpler and apparently carries a lesser degree of complications.
- An alternate route involves refluxing ethanol with phosphorus and bromine; phosphorus tribromide is generated " in situ ".
- Iodolactonization of 9 and subsequent treatment with DBU in refluxing benzene gives rise to the bicyclic lacytone in 78 % yield.
- Many people experience a burning sensation in their chest occasionally, caused by stomach acids refluxing into the esophagus, normally called heartburn.
- It may be prepared through a Diels-Alder reaction by refluxing tetraphenylcyclopentadienone and diphenylacetylene in benzophenone or other high-temperature solvent.
- It has the chemical formula C 3 H 7 Cl and is prepared by refluxing isopropyl alcohol with concentrated hydrochloric acid and zinc chloride.
- These diketones then give dialkoxydiimines 3 by treatment with dimethyl sulfate in refluxing toluene, or with triethyloxonium tetrafluoroborate in refluxing chloroform / hexamethylphosphoramide.
- These diketones then give dialkoxydiimines 3 by treatment with dimethyl sulfate in refluxing toluene, or with triethyloxonium tetrafluoroborate in refluxing chloroform / hexamethylphosphoramide.
- 2-Furoyl chloride was prepared in 1924 by Gelissen by refluxing 2-furoic acid in excess thionyl chloride on a water bath.
- Anhydrous t-butanol is obtained by further refluxing and distilling from magnesium activated with iodine, or alkali metals such as sodium or potassium.
- The reaction takes place in refluxing benzene at 80 �C or at room temperature in the presence of Sodium sulfate which activates iminium ion formation.
- Reactions of this type require refluxing solvents such as benzene, dioxane, or acetonitrile with P 4 S 10 dissociating into P 2 S 5.
- Patients who suffer from laryngopharyngeal reflux, or LPR, are more likely to experience symptoms as a result of stomach acid refluxing into the larynx.
- For reactants lacking electron-donating groups on the benzene ring, phosphorus pentoxide ( P 2 O 5 ) in refluxing POCl 3 is most effective.
- Likewise, the NaBH 4-MeOH system, formed by the addition of methanol to sodium borohydride in refluxing THF, reduces esters to the corresponding alcohols.
- The Bischler Napieralski reaction is carried out in refluxing acidic conditions and requires a Tf 2 O and polyphosphoric acid ( PPA ) have been used with phenethylcarbamates.
- There is the option of a refluxing or a non-refluxing type, and the two ureters can be joined into the intestinal segment either together or separately.
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