In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Copper-Catalyzed Oxalamide-Directed ortho-C-H Amination of Anilines with Alkylamines, published in 2020-07-02, which mentions a compound: 4045-24-3, mainly applied to aniline alkylamine oxalamide copper catalyst amination directing group; aromatic amine preparation, Application of 4045-24-3.
A copper-catalyzed oxalamide-directed ortho-C-H amination of anilines has been developed by using 1 atm of air as the sole oxidant. The protocol shows excellent functional group tolerance, and some heterocyclic amines including indole, benzothiophene, benzothiazole, quinoline, isoquinoline, and quinoxaline could be compatible in the reaction. The late-stage diversification of medicinal drugs demonstrates the synthetic utility of this protocol.
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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem