Question
____ contain both a double bond on an adjacent carbon, and themselves have a nitrogen-containing group.
Answer
Enamines contain both a double bond on an adjacent carbon, and themselves have a nitrogen-containing group.
Note: Imines and related compounds can undergo tautomerization to form enamines.
Note: Primary amines undergo condensation reactions with aldehydes and ketones to imines; secondary
amines condense to enamines.
Note: Upon exposure to an amine, aldehydes and ketones initially form hemiaminals, the nitrogen analogs of hemiacetals. In a subsequent, slower step, hemiaminals of primary amines lose water to form a carbon–nitrogen double bond. This function is called an imine (an older name is Schiff* base) and is the nitrogen analog of a carbonyl group.
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A ____ has two alkyl groups bonded to the carbonyl.
____ has one alkyl group and one hydrogen bonded to a carbonyl.
Aryl is any functional group or substituent derived from ____ .
____ is any functional group or substituent derived from an aromatic ring .
____ are named by replacing the – e at the end of the alkane name with the suffix – al .
Aldehydes are named by replacing the ____.