Organic Chemistry (8th Edition)

Published by Pearson
ISBN 10: 0321768418
ISBN 13: 978-0-32176-841-4

Chapter 8 - Reactions of Alkenes - Problems - Page 357: Problem 8-23 a

Answer

The major product of this reaction would be butane. It would be a sin-addition.

Work Step by Step

In the presence of $H_2$ and Pt as a catalyst the addition of hydrogen happens across the double bond. Since the $H_2$ attacks from one side the addition is syn-addtion.
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