What happens when acetophenone reacts with NaOH?

In this typical iodoform reaction, acetophenone (a methyl ketone) is treated with aqueous NaOH and I2 to produce sodium benzoate and iodoform. The yellow precipitate confirms the presence of the methyl ketone moiety in acetophenone.

What does br2 and NaOH do?

Mechanism. The reaction of bromine with sodium hydroxide forms sodium hypobromite in situ, which transforms the primary amide into an intermediate isocyanate. The bromoamide anion rearranges as the R group attached to the carbonyl carbon migrates to nitrogen at the same time the bromide ion leaves, giving an isocyanate …

What happens when acetophenone is treated with bromine in acidic medium?

When acetophenone is treated with bromine in the acidic medium it leads to the formation of a compound called m-Bromoacetophenone. As a ketone is reacted with halogen this process is called halogenation of acetophenone. The product obtained is m-Bromoacetophenone which is obtained by combination type reaction.

What is claisen Schmidt reaction?

The Claisen-Schmidt condensation reaction is an organic reaction in which a ketone or an aldehyde holding an α-hydrogen reacts with an aromatic carbonyl compound which does not have any α-hydrogens. This reaction is named after the chemists J.G. Schmidt and Rainer Ludwig Claisen.

What happens when Br2 reacts with hot and conc NaOH?

a Br2 reacts with hot and strong NaOH solution to give NaBr and H2O.

What happens when bromine reacts with NaOH?

Bromine liquid reacts with sodium hydroxide to form a salt of sodium bromide, sodium bromate(I) and water. The reaction is less reactive compared with chlorine.

What happens when bromine is passed through hot and conc NaOH?

Bromine reacts with cold and dilute NaOH solution and hot and concentrated NaOH solution. 2-methyl-2-phenyl propanamide when reacted with bromine and NaOH forms.

What is the difference between aldol and Claisen?

The key difference between aldol condensation and Claisen condensation is that aldol condensation describes the addition of enolates to aldehydes or ketones, whereas Claisen condensation describes the addition of enolates to esters. Claisen condensation progresses with an aldol condensation as a part of it.

How is cinnamic acid formed by using Perkin reaction?

Cinnamic acid derivatives The Perkin reaction is an organic reaction developed by English chemist William Henry Perkin that is used to make cinnamic acids. It gives an α,β-unsaturated aromatic acid by the aldol condensation of an aromatic aldehyde and an acid anhydride, in the presence of an alkali salt of the acid.

Is acetophenone polar or nonpolar?

The structure of acetophenone is shown below: Due to the presence of a polar carbonyl group, acetophenone possesses a dipole moment, which remains directed towards the oxygen atom in the carbonyl group as shown below: Hence, acetophenone is a polar molecule.

What is the reaction between acetophenone and BR and NaOH?

Acetophenone is a methyl ketone. The addition of Br and NaOH sets up the conditions for the haloform reaction. This reaction turns a methyl ketone into haloform and an acid (or its conjugate base). In this case, the following reaction would occur: I’ve taken some liberties…

What happens when you add Br2 and NaOH to methyl ketone?

The addition of Br 2 and NaOH sets up the conditions for the haloform reaction. This reaction turns a methyl ketone into haloform and an acid (or its conjugate base). In this case, the following reaction would occur: I’ve taken some liberties with this reaction.

What happens when acetophenone reacts with Br2 in presence of AlCl3?

Acetophenone reacts with Br 2 in presence of anhydrous AlCl 3 to give m-Bromo Acetophenone. This video explains the Methods of preparation, Important reactions of Alde… This video explains the Methods of preparation, Important reactions of Alde…

How many NaOH and Br2 are needed to make benzoic acid?

It takes three NaOH and Br2 molecules to do this reaction and the product is almost certainly the benzoate ion rather than benzoic acid itself. Most often, the solution is acidified with HCl to produce the final benzoic acid product. What happens when benzaldehyde reacts with acetone in the presence of diluted NaOH?