Question

Which of the following statement is correct regarding the following reaction?

• A. Major product is endocyclic alkene formed according to Saytzeff
• B. Major product is exocyclic alkene formed according to Saytzeff
• C. Major product is exocyclic alkene formed according to Hofmann
• D. Major product is endocyclic alkene formed according to Hofmann

Answer 1

The correct option is C Major product is exocyclic alkene formed according to Hofmann

Generally, Hofmann product is the major product when bulky base is used or when the leaving group in E2 is poor.
Here, bulky base $t-Bu{O}^{-}$${}^{+}K$ is used so it gives exocyclic alkene.