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Q. Which of the following will give Hofmann alkene?

Haloalkanes and Haloarenes

Solution:

Hofmann elimination gives less-substituted alkene
1. Cope reaction
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b. In case of bulky base, Hofmann alkene is formed
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c. In case of RF (poor leaving group), whether the
base is bulky or non-bulky, Hofmann alkene is
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(I) is more stable due to extended conjugation with $(=)$ bond of Ph-ring