मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write a short note on Hofmann elimination

Advertisements
Advertisements

प्रश्न

Write a short note on Hofmann elimination

टीपा लिहा
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).

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2018-2019 (March) Set 1

संबंधित प्रश्‍न

Which one of the following compounds does not react with acetyl chloride?


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?


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 diethylamine?


Answer the following.

What is the action of acetic anhydride on triethylamine?


Answer the following

Write diazotisation reaction of aniline?


Write the name of the reaction in which aromatic primary amines produce offensive smell.


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 ____________.


\[\ce{X ->[LiAlH4 in ether] Y ->[C2H5Br] Z -> Triethylamine}\]

X and Z are ____________ respectively.


Which group from following decreases the basic strength in substituted aniline?


Which one of the following methods is NOT used for the synthesis of amines?


Identify reagent 'A' in the following conversion?

\[\ce{N-N Dimethyl aniline ->[A][273-278 K] 4-nitroso-N-N-dimethylaniline}\]


Which of the following amines liberates nitrogen gas when treated with nitrous acid?


Select the compound which on treatment with nitrous acid liberates nitrogen.


Which of the following compounds gives a dye test?


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 ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×