Both endo- and exo-attack occur in the LUMO during this reaction, in which one of the reactants must be able to take on the cisoid conformation; if it remains stuck in the transoid conformation, the reaction cannot occur. Res
Both endo- and exo-attack occur in the LUMO during this reaction, in which one of the reactants must be able to take on the cisoid conformation; if it remains stuck in the transoid conformation, the reaction cannot occur. Resulting from sigma-overlap of two pi orbitals, it can be viewed more generally as a [4+2] reaction because one reactant has 4 pi electrons and the other has 2 pi electrons. In its first use, its discoverers produced 1, 2, 3, 6-tetrahydrophthalic anhydride by reacting maleic anhydride with butadiene. FTP, name this reaction in which a certain kind of diene is reacted with a dienophile to produce an unsaturated six-membered ring, which earned its namesakes the 1950 Nobel Prize in Chemistry.
Both endo- and exo-attack occur in the LUMO during this reaction, in which one of the reactants must be able to take on the cisoid conformation; if it remains stuck in the transoid conformation, the reaction cannot occur.
Diels-Alder reaction