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 3-Positional Amination of 2-Azulenols with O-Benzoylhydroxylamines, published in 2021-09-03, which mentions a compound: 4045-24-3, mainly applied to azulenol benzoylhydroxylamine copper catalyst regioselective amination; aminoazulenol preparation, Related Products of 4045-24-3.
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.
Different reactions of this compound(4-Methoxypiperidine)Related Products of 4045-24-3 require different conditions, so the reaction conditions are very important.
Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem