Advertisements
Advertisements
प्रश्न
Write a short note on Hofmann elimination
Advertisements
उत्तर
When tetraalkylammonium halide is heated with moist silver oxide, it gives quaternary ammonium hydroxide which is a deliquescent crystalline solid, and strongly basic like NaOH or KOH.
Quaternary ammonium hydroxides on strong heating undergo b-elimination to give an alkene, the reaction is called Hofmann elimination. The least substituted alkene is obtained as a major product (in contrast to Saytzeff elimination).
APPEARS IN
संबंधित प्रश्न
Answer in one sentence.
How many moles of methyl bromide are required to convert ethanamine to N, N-dimethyl ethanamine?
Answer the following
What is diazotisation?
Answer the following
Explain carbylamine reaction with suitable examples.
Write a reaction to convert methanamine into ethanamine.
Answer the following
Write a reaction to convert ethylamine into methylamine.
Answer the following.
What is the action of acetic anhydride on ethylamine?
Answer the following.
What is the action of acetic anhydride on triethylamine?
Write the name of the reaction in which aromatic primary amines produce offensive smell.
Write the name of the gas evolved when a primary amine is reacted with nitrous acid.
Write the reactions to bring about the following conversions.
Methyl chloride to Ethanamine
Write the reactions to bring about the following conversions.
Nitroalkane to Alkylamine
Write the reactions to bring about the following conversions.
Alkyl cyanide to Alkylamine
\[\ce{X ->[Sn/HCl] Propan-2-amine}\]
Compound X is ____________.
Acylation of ethanamine to form N-ethylethanamide is an example of ____________ reaction.
Which of the following on heating with chloroform and alcoholic potassium hydroxide yields carbylamine?
Which one of the following methods is NOT used for the synthesis of amines?
\[\ce{Dimethylamine + Benzoyl chloride ->[Pyridine] ?}\]
Product formed is:
Identify reagent 'A' in the following conversion?
\[\ce{N-N Dimethyl aniline ->[A][273-278 K] 4-nitroso-N-N-dimethylaniline}\]
When propanamide is treated with bromine and alcoholic NaOH, it gives ______.
Select the compound which on treatment with nitrous acid liberates nitrogen.
Write the reaction of Acetyl chloride on triethylamine.
Convert Methyl iodide to methyl isocyanide
Which from following amines forms corresponding alcohol liberating dinitrogen when treated with mixture of NaNO2(aq) and HCI?
Above reaction is known as ______.
