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 Directing Group Enhanced Carbonylative Ring Expansions of Amino-Substituted Cyclopropanes: Rhodium-Catalyzed Multicomponent Synthesis of N-Heterobicyclic Enones, published in 2013-04-03, which mentions a compound: 175136-62-6, mainly applied to alkyne tethered aminocyclopropane rhodium catalyzed directed carbonylative ring expansion; heterobicyclic enone regioselective preparation, COA of Formula: C24H9F18P.
Aminocyclopropanes equipped with suitable N-directing groups undergo efficient and regioselective Rh-catalyzed carbonylative C-C bond activation. Trapping of the resultant metallacycles with tethered alkynes provides an atom-economic entry to diverse N-heterobicyclic enones. These studies provide a blueprint for myriad N-heterocyclic methodologies.
There are many compounds similar to this compound(175136-62-6)COA of Formula: C24H9F18P. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.
Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem