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Wurtz reaction and Allylic bromination by N-Bromosuccinimide
(A) Wurtz reaction - Ethyl bromide on treatment along with metallic sodium forms butane, ethane and ethylene by including free radical mechanism.
(B) Allylic bromination by NBS (N-Bromosuccinimide) - NBS (N-Bromosuccinimide) is a selective brominating agent and it generally brominates the ethylenic compounds in the allylic (CH2 = CH - CH2-) position. This form of reaction including substitution at the alpha carbon atom along with respect to the double bond is known as Allylic replacement. It is as well need for benzylic bromination.
ionic equation by ionelectron method (half reaction)
positive analysis radical
The covalent bond produced by the unequal sharing of electrons among the two atoms is known as polar covalent bond.
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