Summary Reactions of Ketones and Aldehydes

Reactions of ketones and aldehydes at their a positions This large group of reactions is covered in Chapter 22. 

Clemmensen reduction The deoxygenation of a ketone or aldehyde by treatment with zinc amalgam and dilute HCl. (p. 854) 

McLafferty rearrangement In mass spectrometry, the loss of an alkene fragment by a cyclic rearrangement of a carbonyl compound having y hydrogens, (p. 814) nitrile A compound containing the cyano group, C = N. (p. 824) 

Tollens test A test for aldehydes. Adding the Tollens reagent, a silver-ammonia complex [Ag(NH3)2 OH], gives a carboxylate salt aixl a silver mirror on the inside of a glass container. (p. 852) 

Wittig reaction Reaction of an aldehyde or ketone with a phosphorus ylide to form an alkene. One of the most versatile syntheses of alkenes. (p. 832) 

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Mechanism 18-7 Wolff-Kishner Reduction 864 Summary Reactions of Ketones and Aldehydes 865 Essential Terms 868 Study Problems 870... 

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