For 10 points, identify this 4+2 cycloaddition reaction wherein conjugated diene reacts with a dienophile to produce a cyclohexene system, named for its two German discoverers.
When it occurs with 1,1-diarylethylene it is called the Wagner-Jauregg (yow-reg) reaction, although other benzenoid compounds usually do not undergo this reaction, while the aza modification of it can be used when either of two reactants contain imines. Lewis acids can be used to control the quantities of endo and exo products produced in this reaction which requires an overlap of the HOMO and LUMO. For 10 points, identify this 4+2 cycloaddition reaction wherein conjugated diene reacts with a dienophile to produce a cyclohexene system, named for its two German discoverers.
When it occurs with 1,1-diarylethylene it is called the Wagner-Jauregg (yow-reg) reaction, although other benzenoid compounds usually do not undergo this reaction, while the aza modification of it can be used when either of two reactants contain imines.
{Diels-Alder} reaction