Interpretation:
For the given reaction, the products and in which predominated product are needed to be determined.
Concept introduction:
Dienes undergoes addition reactions with
The allylic carbocation is formed as an intermediate by the addition of proton in the
The
There are four carbons for addition of proton in a conjugated diene, but addition of proton at C1 and C4 carbons only form the allylic carbocation. The nucleophile can attack two positions of allylic carbocation. If it is C2 carbon, then the it is called 1,2 addition of
Symmetrical diene like butadiene will produce only two products. Because the intermediates allylic carbocation formed are same.
The 1,2-adduct is kinetic product, because of the proximity of C2 carbon to attack by
The 1,4-adduct is
To determine: the products and in which predominated product for the given reaction.

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Chapter 16 Solutions
ORGANIC CHEMISTRY (LL) W/ACCESS
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