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The compound below is treated with N-bromosuccinimide (NBS) in the presence of light. Draw both resonance structures for the
Review Topics] [References) The compound below is treated with N-bromosuccinimide (NBS) in the presence of light. Draw both r
The compound below is treated with N-bromosuccinimide (NBS) in the presence of light. Draw both resonance structures for the
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Answer #1

N-bromosuccinamide (NBS) is a suitable source for bromide radical in presence of light.

This bromide radical can convinently replce the weakset C—H bond of the alkene. Now the allylic C—H bond is the weakest bond in the alkene compound since the allylic radical is most stable by resonce stabilization.

The products in each case and the mechanism are shown below.

a C-H bonds are agrivatent as shown in the above. O UBT NBS) Oxxon CX-e, we x +BeFO Both ch and c-42 are allylic. But after radical formation from call, it produces, 2 radical while che produced i radical

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