refluxing उदाहरण वाक्य

उदाहरण वाक्य

1. These diketones then give dialkoxydiimines 3 by treatment with dimethyl sulfate in refluxing toluene, or with triethyloxonium tetrafluoroborate in refluxing chloroform / hexamethylphosphoramide.
2. 2-Furoyl chloride was prepared in 1924 by Gelissen by refluxing 2-furoic acid in excess thionyl chloride on a water bath.
3. Anhydrous t-butanol is obtained by further refluxing and distilling from magnesium activated with iodine, or alkali metals such as sodium or potassium.
4. 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.
5. Reactions of this type require refluxing solvents such as benzene, dioxane, or acetonitrile with P 4 S 10 dissociating into P 2 S 5.
6. Patients who suffer from laryngopharyngeal reflux, or LPR, are more likely to experience symptoms as a result of stomach acid refluxing into the larynx.
7. For reactants lacking electron-donating groups on the benzene ring, phosphorus pentoxide ( P 2 O 5 ) in refluxing POCl 3 is most effective.
8. Likewise, the NaBH 4-MeOH system, formed by the addition of methanol to sodium borohydride in refluxing THF, reduces esters to the corresponding alcohols.
9. 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.
10. 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.