How to Deal with Annulation in Organic Chemistry – Part 1

Annulation (or annelation) is a chemical reaction in which a new ring is constructed on a molecule.


Annulation may give rise to a partial loss in aromaticity.

Question:

Predict the major product(s) of the following reaction:



Click to enlarge image

Solution infographic:



Click to enlarge image

Sounds like annihilation❓ Let Chemaficionado know at mychemistryhomework@gmail.com❗

References:

(1)    Wikipedia Contributors. Annulation. Wikipedia.

‌(2)    Chouhan, M. S. Advanced Problems in Organic Chemistry for JEE, 11th Ed.

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