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in carbocation there is rearrangement possible but in carbanions it is not ;why

aayush kaul , 13 Years ago
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SAGAR SINGH - IIT DELHI

Last Activity: 13 Years ago

Dear student,

Carbocation rearrangements are more common than the carbanion or radical counterparts. This observation can be explained on the basis of Huckel's law. A cyclic carbocationic transition state is aromatic and stabilized because it holds 2 electrons. In an anionic transition state on the other hand 4 electrons are present thus antiaromatic and destabilized. A radical transition state is neither stabilized or destabilized.

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