BACKGROUND Principle: In the first step alcohol group of benzoin is oxidized to ketone group forming benzil in presence of concentrated nitric acid. Nitration of aromatic ring is not occurring as sulphuric acid is totally absent in the whole process. In the second step on treatment with hydroxide ion molecular rearrangement occurs to 1,2-diketone forming … Read more
BACKGROUND Principle: Here in first step electrophilic aromatic substitution (nitration) of nitronium ion is occurring towords para position of acetanilide more than ortho position due to steric reasons. Nitronium ion is the electrophile generates from fuming nitric acid in presence of fuming sulphuric acid. In the second step p-nitroaniline is prepared from p-nitro acetanilide due … Read more
Acetanilide from aniline mechanism, preparation of acetanilide from aniline practical pdf, synthesis of acetanilide from aniline and acetyl chloride, why glacial acetic acid is used in preparation of acetanilide from aniline, theoretical yield of acetanilide from aniline BACKGROUND Principle: Acetanilide is synthesized from aniline by acetylating it with acetic anhydride in presence of glacial acetic … Read more
Synthesis of aspirin procedure, synthesis of aspirin mechanism, aspirin lab report pdf, salicylic acid + acetic anhydride = aspirin + acetic acid balanced equation, synthesis of acetylsalicylic acid lab report, synthesis of aspirin lab report discussion, acetylation of salicylic acid BACKGROUND Principle: Synthesis of aspirin from salicylic acid occurs by acetylation process in acidic medium. Salicylic … Read more
BACKGROUND Principle: Synthesis of aspirin from salicylic acid occurs by acetylation process in acidic medium. Salicylic acid interacts with acetic anhydride in presence of few drops of concentrated sulphuric acid to produce aspirin and a molecule of acetic acid. The purpose of adding sulphuric acid (catalyst) is to aid and augent the process of detaching … Read more
Synthesis of 7-hydroxy-4-methylcoumarin slideshare, synthesis of 7-hydroxy 4-methyl coumarin from resorcinol, synthesis of 7-hydroxy-4-methylcoumarin lab report, 7-hydroxy-4-methylcoumarin wikipedia, mechanism of synthesis of 7-hydroxy-4-methylcoumarin, 7-hydroxy-4-methylcoumarin uses, molecular weight of 7 hydroxy 4 methyl coumarin, 7-hydroxy-4-methylcoumarin melting point, BACKGROUND Principle: General synthesis of coumarins involves the interaction of a phenol with a β-ketoester in presence of an … Read more
BACKGROUND Principle: Base catalyzed reaction between benzyl and urea is used for synthesis of phenytoin. The reaction is proceeding via intramolecular cyclization to form an intermediate heterocylic pinacol, which on acidification yield hydantoin (phenytoin) as a result of 1,2-diphenyl shift in pinacol rearrangement reaction.1 Aim: To prepare phenytoin from benzil and urea. Reaction: Mechanism: Use: … Read more
BACKGROUND Principle: Sulphanilamide can beprepared by taking acetanilide and treating it with excess of chlorosulphonic acid, which gives p-acetamidobenzenesulphonyl chloride which readily converted into corresponding p-acetamidobenzenesulphonamides upon reaction with ammonia or ammonium carbonate. The acetamido groups can easily undergo acid catalyzed hydrolysis reaction to form p-aminobenzene sulphonamide (sulphanilamide).1 Aim: To prepare sulphanilamide from acetanilide. Reactions: … Read more
Synthesis of paracetamol, synthesis of paracetamol from phenol, synthesis of paracetamol pdf, synthesis of paracetamol pdf download, paracetamol synthesis mechanism, BACKGROUND Principle: The synthesis of the amide essentially just requires running the reaction under certain temperature conditions with an appropriate catalyst. Paracetamol is prepared from p- aminophenol by acetylating it with acetic anhydride in … Read more
BACKGROUND Principle: In the first step catalytic reduction of nitrobenzene is occurring forming N-phenylhydroxylamine in presence of zinc and ammonium chloride with sufficient water. In the second step rearrangement is occurring which involves the conversion of an N- phenylhydroxylamine into the corresponding 4-aminophenol through treatment with an aqueous mineral acid such as sulfuric acid (Bamberger … Read more
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