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Which one of each pair undergoes S_(N)I reaction readily and why? (ii) CH_(3)0CH_(2)Cl, CH_(3)OCH_(2)CH_(2)Cl. |
Answer» SOLUTION :The PRIMARY carbocation obtained from the C-Cl BOND cleavage of the first compound is considerably stabilised by resonance. Because of this, it undergoes `S_(N)1` reation readily.  The second compound is expected to produce a very unstable carbocation which cannot be stabilized by resonance (`-OCH_(3)` group is not directly attached to the `alpha`-carbon) and for this REASON, it does not undergo `S_(N)1` REACTION. |
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