Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Organic Letters called Cobalt(III)-Catalyzed [4 + 2] Annulation of N-Chlorobenzamides with Maleimides, Author is Muniraj, Nachimuthu; Prabhu, Kandikere Ramaiah, which mentions a compound: 4144-22-3, SMILESS is O=C(C=C1)N(C(C)(C)C)C1=O, Molecular C8H11NO2, Application of 4144-22-3.
A Co(III)-catalyzed novel [4 + 2] annulation of N-chlorobenzamides with maleimides has been reported. Mostly, maleimides are known to furnish the Michael-type or 1,1-type cyclized products while treating with amides. In this reaction, maleimides furnished [4 + 2] annulated products in good yields at room temperature while being treated with the internal oxidizing N-chlorobenzamide as a directing group. The developed methodol. is compatible with a variety of functional groups. The [4 + 2] annulated products obtained are featured in some biol. active mols.
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Reference:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics