In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A convenient catalytic asymmetric conjugate addition reaction to enones using alkylzirconium reagents, published in 2013-10-01, which mentions a compound: 415918-91-1, Name is (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, Molecular C36H30NO2P, Recommanded Product: 415918-91-1.
Alkylzirconium reagents undergo highly enantioselective copper-catalyzed 1,4-addition reaction to cyclic enones. These reactions use alkylmetal species generated in situ from alkenes and the Schwartz reagent, and do not require premade organometallic reagents. The reactions have been performed on practical synthetic scales (2.5 mmol) and a scale-up to 10 mmol is demonstrated. The reactions proceed at room temperature, in a variety of solvents, and tolerate many functional groups.
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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics