An aromatic ring containing this functional group is formed in the first step of the Houben- Hoesch reaction.
An aromatic ring containing this functional group is formed in the first step of the Houben- Hoesch reaction. A derivative of this functional group containing a para-methoxy-phenyl or PMP group reacts with a carbonyl and proline in an asymmetric form of one reaction. Pyridoxal phosphate, also known as the active form of vitamin B6, links to enzymes by forming this functional group. This functional group reacts with m-CPBA to form ox-az-iri-dines. This functional group is formed in the first step of the Mannich reaction. A cyanide anion nucleophilically attacks this functional group in the Strecker synthesis. Enamines tautomerize to form these compounds, which are reduced using sodium cyanoborohydride in "reductive amination" of carbonyls to form amines. Schiff bases are a form of, for 10 points, what nitrogenous analogue of a carbonyl that consists of a carbon double-bonded to a nitrogen? 
An aromatic ring containing this functional group is formed in the first step of the Houben- Hoesch reaction.
imine (ih-meen) [or iminium ion, accept  Schiff base before mention, accept "aldimine" and "ketimine" (keet-ih-meen) but do NOT accept or prompt on "ketamine" (keh- tuh-meen), do NOT accept or prompt on "amines" or "imides;" you may wish to have players spell the answer if you are unable to determine their answer]