26. Synthesis of Cyclopropanecarboxylic Acid

There are a couple of ways how you can accomplish this synthesis. The “classic” procedure from the 1944 Organic Synthesis uses a nitrile to close up the three-membered ring.

The next version is what we would normally expect to see on the test nowadays using the malonic ester synthesis approach.

malonic ester synthesis approach to synthesis of cyclopropanecarboxylic acid
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