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प्रश्न
What are ambident nucleophiles? Explain with an example.
What do you mean by ambident nucleophiles? Explain with an example.
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उत्तर
Ambident nucleophiles attack alkyl halides through two distinct atoms. This occurs due to the presence of two nucleophilic centres resulting from resonance structures in the ion. For example, the lone pair of electrons on N in the NO2 ion makes it nucleophilic, while oxygen’s negative charge works as a nucleophile.
Thus, NO2 can attack the O or N atoms, making it ambidentate.
\[\ce{RX + Ag - O - N = O -> \underset{Nitroalkane}{R - NO2}}\]
\[\ce{RX + KNO2 -> \underset{Alkyl nitrate}{R - O - N = O}}\]
संबंधित प्रश्न
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(a) 2- Bromo-2 methylbutane
(b) 1 -Bromo-2,2-dimethylpropane
(c) 1 - Bromo - 3 -methylbutane
(d) 1 - Bromo- 2 -methylpropane
What is the action of the following on ethyl bromide?
silver acetate
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Same molecular formula but different structures: A : : Non superimposable mirror images: B
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\[\ce{CH3CH2CH2CH3 -> CH3CH2CH2CH2Cl + CH3CH2CHClCH3}\]
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The product formed during SN1 reaction is a racemic mixture.
Among the following compounds I - IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3 (iii) AgNO3?
 |
 |
 |
 |
| I | II | III | IV |
In SN1 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is ______.
