Preparation of acetanilide from aniline pdf

Add 2 mL aniline (density g cm-3) and swirl the mixture. If the solution is coloured, add a small amount of decolourising charcoal, swirl the flask for about one minute, and filter off the carbon using a fluted filter paper (see the Appendix). In a separate container dissolve 3 g sodium acetate in 10 mL water. Add, with stirring, µL of acetic anhydride to the solution of aniline hydrochloride, followed quickly by addition (Pasteur pipet) of the previously prepared solution of sodium acetate. Stir to thoroughly mix the reagents (~5 min.). You should see the formation of a white precipitate. H O + acetic acid. Both aniline and acetic anhydride are somewhat viscous liquids. So, simply mixing them together does not result in the efficient formation of acetanilide. Therefore, a solvent (in this case water) is used to dissolve and evenly disperse two reactants in it.

Preparation of acetanilide from aniline pdf

King Saud University LapCHEM. EXPERIMENT 6 Preparation of Acetanilide. College Of Science Chemistry Department. 3. The product crystallized in the same test tube. Add 5 ml of water and heat the test tube in a hot water bath ( mL beaker) (Fig.2) with . Add, with stirring, µL of acetic anhydride to the solution of aniline hydrochloride, followed quickly by addition (Pasteur pipet) of the previously prepared solution of sodium acetate. Stir to thoroughly mix the reagents (~5 min.). You should see the formation of a white precipitate. Add 2 mL aniline (density g cm-3) and swirl the mixture. If the solution is coloured, add a small amount of decolourising charcoal, swirl the flask for about one minute, and filter off the carbon using a fluted filter paper (see the Appendix). In a separate container dissolve 3 g sodium acetate in 10 mL water. H O + acetic acid. Both aniline and acetic anhydride are somewhat viscous liquids. So, simply mixing them together does not result in the efficient formation of acetanilide. Therefore, a solvent (in this case water) is used to dissolve and evenly disperse two reactants in it. Outline a preparation of p-nitroaniline from aniline and any other reagents. Solution An amide group is much less basic than an amino group. Hence, acylation of the amino group of aniline with acetyl chloride to give N-phenylacetamide (acetanilide) will protect the nitro-gen from protonation.The purpose of this experiment was to synthesize acetanilide in a reaction between aniline and acetic anhydride and evaluate recrystallization as a purification. (1) Operations with glacial acetic acid, acetic anhydride and aniline should be Prepare a solution from anhydrous sodium acetate ( g; mol) and water. PREPARATION OF ACETANILIDE FROM ANILINE. Chemical Reaction: NH2. Aniline. O(OCCH3)2. Glacial Acetica Acid. Acetic Anhydride. NHCOCH3. (i) Take 5 mL of aniline in a mL round bottom flask and add acetylating method can be used for the preparation of acetanilide. Experiment The preparation of acetanilide from aniline. (previously listed as Experiment 23) acetanilide preparation.

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Synthesis of Acetanilide using acetic acid by conventional and green method, time: 4:19
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