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How many α-hydrogens on your structures. (a) acetone; (b) 2-butanone; (c) diphenylketone; (d) cyclobutanone; (e) 2,2,4,4-tetramethylcyclobutanone; (f) benzophenone.

Accepted Answer

Here are the number of α-hydrogens for each structure:
(a) Acetone: 6
(b) 2-Butanone: 4
(c) Diphenylketone: 0
(d) Cyclobutanone: 4
(e) 2,2,4,4-Tetramethylcyclobutanone: 0
(f) Benzophenone: 0

α-hydrogens are the hydrogen atoms directly attached to the carbon atom adjacent to the carbonyl group (C=O).

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