Interpretation:
The carbocation that will be formed upon loss of leaving group will be resonance-stabilized or not has to be identified.
Concept Introduction:
The compound that is been attacked by nucleophile is known as electrophile. Usually electrophile is referred as substrates. Valency of carbon atom is four. Therefore, carbon atom has four bonds. Hence, apart from the bond that is with the leaving group, the carbon atom contains three other bonds also.
Out of the three bonds that are present apart from the leaving group, if one is an alkyl group, then the substrate is known as “primary”. If there are two alkyl groups, then the substrate is known as “secondary”. If there are three alkyl groups, then the substrate is known as “tertiary”. This is represented as shown below,
In
In
In simple words, we can say that, if the substrate is a primary or secondary one, then the reaction will proceed through
The major reason for
In case if a double bond is near the leaving group, then the carbocation that will form has to be drawn and it has to be checked for resonance stabilization.
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