References
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- The rate of the Diels-Alder reaction is determined by the lowest HOMO-LUMO energy seperation attainable by the reacting diene/dienophile components HOMOdiene- LUMOdienophile or LUMOdiene-HOMOdienophile of the (4+2) cycloaddition. Factors which are responsible for lowering the magnitude of this energy separation accelerate the rate of the Diels-Alder reaction. The inverse electron demand (LUMOdiene controlled) Diels-Alder reaction employs an electron-deficient diene (decreased LUMOdiene)/ electron rich dienophile (increased dienophile).
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