How would you carry out the triiodomethane reaction on a sample of an aldehyde or ketone?

Using iodine and sodium hydroxide solution Iodine solution is added to a small amount of aldehyde or ketone, followed by just enough sodium hydroxide solution to remove the colour of the iodine. If nothing happens in the cold, it may be necessary to warm the mixture very gently.

Does propanone give a positive iodoform test?

(i) Propanone gives iodoform test while propanol does not give this test.

Does propanone give Haloform reaction?

This compound does not have 3 alpha Hydrogen atoms and does not fulfil the criteria for the haloform reaction. So, it cannot undergo the haloform reaction. Moreover, it is a methyl ketone, which makes it very suitable for the haloform reaction.

What reacts with triiodomethane?

Ethanal is the only aldehyde to give the triiodomethane (iodoform) reaction. If “R”is a hydrocarbon group, then you have a ketone. Lots of ketones give this reaction, but those that do all have a methyl group on one side of the carbon-oxygen double bond. These are known as methyl ketones.

What happens when propanone is treated with i2 and NaOH?

It is also known as propanone or dimethyl ketone and it is the smallest and the simplest ketone. When it reacts with iodine in presence of NaOH, it forms iodoform.

Does butanone give iodoform test?

The substrate you have provided (2-butanol) would indeed give a positive test. The iodoform test is performed in presence of iodine and potassium or sodium hydroxide, which first oxidizes the aforesaid compound to 2-Butanone. Thus 2-Butanone responds to iodoform test successfully.

Does c6h5cho give haloform reaction?

Therefore, the compound C6H5COC2H5 cannot undergo haloform reaction.

Which of the following alcohols would give a positive triiodomethane reaction?

Ethanol is the only primary alcohol to give the triiodomethane (iodoform) reaction. If “R” is a hydrocarbon group, then you have a secondary alcohol.

What is propanone formula?

C3H6OAcetone / Formula

Is acetone and propanone the same?

Acetone, commonly known as Propanone, is a colourless liquid used in the production of plastics and other industrial products. Acetone formula (or Propanone) is given here both in organic form and in structural form.

What is triiodomethane reaction with aldehydes and ketones?

THE TRIIODOMETHANE (IODOFORM) REACTION WITH ALDEHYDES AND KETONES This page looks at how the triiodomethane (iodoform) reaction can be used to identify the presence of a CH3CO group in aldehydes and ketones.

What is triiodomethane (iodoform) reaction?

triiodomethane (iodoform) reaction with aldehydes and ketones The use of the triiodomethane (iodoform) reaction to test for the presence of a methyl group in aldehydes and ketones THE TRIIODOMETHANE (IODOFORM) REACTION WITH ALDEHYDES AND KETONES

What gives the triiodomethane reaction with ethanol?

Ethanal is the onlyaldehyde to give the triiodomethane (iodoform) reaction. If “R”is a hydrocarbon group, then you have a ketone. Lots of ketones give this reaction, but those that do all have a methyl group on one side of the carbon-oxygen double bond.

What are the reagents used in the triiodomethane reaction?

Equations for the triiodomethane (iodoform) reaction We will take the reagents as being iodine and sodium hydroxide solution. The first stage involves substitution of all three hydrogens in the methyl group by iodine atoms.