How do I do this multistep? (only the question is in black; ignore what is written in pencil)

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1 Answer
Ernest Z.
May 27, 2018

How about this?

Explanation:

A. Acetoacetic ester synthesis

Step 1. Attack of enolate on the alkyl halide.

Step 1

Step 2. Acid-catalyzed hydrolysis and decarboxylation of the β-ketoester

Step 2

C. Hydroboration-Oxidation

Hydroboration

D. Oxidation by pyridinium chlorochromate

PCC

E. Intramolecular aldol condensation

Aldol

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