en deciding between 1,2-addition, 1,4-addition and the major reaction pathway, there's ually an obvious correct answer. True

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Chapter1: Chemical Foundations
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When deciding between 1,2-addition, 1,4-addition and the major reaction pathway, there's
usually an obvious correct answer.
True
False
Transcribed Image Text:When deciding between 1,2-addition, 1,4-addition and the major reaction pathway, there's usually an obvious correct answer. True False
Consider the mechanism for 1,2 and 1,4 addition reactions. If the cation intermediate is the same
in energy on the reaction coordinate diagram, how do different products form selectively?
Alkene stability dictates the reaction.
Reaction conditions control which product is formed.
The transition state: once the new bonds start to form, the cations are no longer in resonance
and the transition states become different in energy.
Activation energy distinguishes the products.
Transcribed Image Text:Consider the mechanism for 1,2 and 1,4 addition reactions. If the cation intermediate is the same in energy on the reaction coordinate diagram, how do different products form selectively? Alkene stability dictates the reaction. Reaction conditions control which product is formed. The transition state: once the new bonds start to form, the cations are no longer in resonance and the transition states become different in energy. Activation energy distinguishes the products.
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