What is the major product for the following Heck Reaction?
A) I
B) II
C) III
D) IV

Name: What is the major product for the following Heck Reaction? A) I B) II C) III D) IV
Brand: Quizplus
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Question

What is the major product for the following Heck Reaction?  
A) I 
B) II 
C) III 
D) IV

Quizplus · Accepted Answer

The major product of the Heck reaction is III because the aryl group adds to the alkene at the less hindered side, leading to the formation of a more stable trans product. I and II are minor products that result from cis addition, while IV is not formed due to steric hindrance.

What Is the Major Product for the Following Heck Reaction