In heterogeneous catalysis, the catalyst is in a different phase from the reactants. name: 3,4-Dichloro-1H-pyrrole-2,5-dione, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1193-54-0, name is 3,4-Dichloro-1H-pyrrole-2,5-dione. In an article£¬Which mentioned a new discovery about 1193-54-0
On the Difficulty of Classifying Diels-Alder-Reactions into “Normal” and “Inverse”
The reactivity of the investigated cyclic dienophiles with 9,10-dimethylanthracene (7) decreases in the order maleic anhydride (1), maleic thioanhydride (2), and maleic imide (3).An analogous behaviour is equally found for the derivatives 4-6 which are dichlorinated at the double bond.In both series this can be understood with the model of the frontier orbitals only if besides the energies of these orbitals, the differing frontier orbital densities of the dienophiles and the electrophilicity of the diene are also taken into account.
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Reference£º
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem