17057-04-4, Name is 4-(2,5-Dioxo-2,5-dihydro-pyrrol-1-yl)-benzoicacid, belongs to pyrrolines compound, is a common compound. SDS of cas: 17057-04-4In an article, once mentioned the new application about 17057-04-4.
In Situ vinylpyrrole synthesis. Diels-alder reactions with maleimides to give tetrahydroindoles
(Chemical Equation Presented) A series of 108 tetrahydroindoles has been prepared by a one-pot synthesis from 2-alkylpyrroles, cyclic ketones, maleimides, and an acid catalyst. A 5-vinylpyrrole is formed by an acid-catalyzed condensation of a 2-alkyl-substituted pyrrole with a ketone, which is subsequently trapped in situ by a maleimide in a predominantly endo-addition Diels-Alder reaction. Isomerization of the double bond into the pyrrole ring gives a tetrahydroindole with predominant cis-fusion of the cycloalkane ring.
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Reference£º
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem