Li, Meng; Wang, Dong-Hui published the article 《Copper-Catalyzed 3-Positional Amination of 2-Azulenols with O-Benzoylhydroxylamines》. Keywords: azulenol benzoylhydroxylamine copper catalyst regioselective amination; aminoazulenol preparation.They researched the compound: 4-Methoxypiperidine( cas:4045-24-3 ).Safety of 4-Methoxypiperidine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:4045-24-3) here.
A copper-catalyzed ortho-selective amination of 2-azulenols with O-benzoylhydroxylamines (RR’N-OBz) to synthesize ortho-aminoazulenols was reported. A wide range of functional groups on amines were compatible, furnishing the corresponding amino-azulene derivatives in moderate to good yields. The further synthetic elaboration using 3-amino-2-azulenols as starting materials was demonstrated.
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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem