1. 1,3-diester is less acidic than a 1,3-ketoester, which is less acidic than an

Question

1. 1,3-diester is less acidic than a 1,3-ketoester, which is less acidic than an 1,3-diketone due to increased electron donation by the -OR group of the ester.

2. Claisen reactions use a stoichiometric amount of base and do not polymerize, unlike aldol reactions that use a catalytic amount of base and can polymerize.

3. Beta-hydroxy ketones can be formed by thiazolium catalysis with aldehydes.

4. Aliphatic heterocycles typically act like normal ethers, amines, and thioethers unless there is a large amount of ring strain.

Explanation / Answer

1. True 2. False 3. True 4. True

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