Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 138984-26-6, is researched, SMILESS is C12=O[Rh+2]3(O=C4[N-]5CCCCC4)([N-]6C(CCCCC6)=O7)[N-](CCCCC8)C8=O[Rh+2]357[N-]1CCCCC2, Molecular C24H40N4O4Rh2Journal, Journal of the American Chemical Society called Control of chemoselectivity in catalytic carbenoid reactions. Dirhodium(II) ligand effects on relative reactivities, Author is Padwa, Albert; Austin, David J.; Hornbuckle, Susan F.; Semones, Mark A.; Doyle, Michael P.; Protopopova, Marina N., the main research direction is chemoselectivity catalysis carbenoid reaction; rhodium ligand effect chemoselectivity; aromatic substitution chemoselectivity rhodium ligand; cyclopropanation chemoselectivity rhodium ligand; insertion carbon hydrogen chemoselectivity rhodium ligand; cycloaddition aromatic chemoselectivity rhodium ligand; carbon ylide chemoselectivity rhodium ligand; indenone dihydroalkenyl; bicyclohexanone aryl; cyclopentanone dimethylpropenyl; azabicycloundecatrienone tertbutyl; pyrrolidinone aryltertbutyldihydro; oxabicyclooctenecarboxylate oxo; oxatricyclononanone methyl.COA of Formula: C24H40N4O4Rh2.
Chemoselectivity in dirhodium(II) catalyzed intramol. carbenoid reactions of diazo carbonyl compounds is controlled by the ligands of the catalyst. Changing the dirhodium(II) ligands from the strongly electron withdrawing perfluorobutyrate to carboxamides causes a complete reversal in product selectivity from aromatic substitution to cyclopropanation, from carbon-hydrogen insertion to cyclopropanation, from aromatic cycloaddition to carbon-hydrogen insertion, and from aromatic substitution to carbonyl ylide formation. Results obtained with ten α-diazo carbonyl compounds in four different competitive reactions demonstrate that with rhodium(II) perfluorobutyrate, only the former transformation occurs, whereas with rhodium(II) caprolactam or acetamide only the latter transformation is observed With rhodium(II) acetate as the catalyst, mixtures of products from these competitive processes were obtained. The exceptionally high chemoselectivity obtained in these competitive intramol. reactions is due to the inherent electron demand from ligands of the rhodium(II) carbene intermediate.
This literature about this compound(138984-26-6)COA of Formula: C24H40N4O4Rh2has given us a lot of inspiration, and I hope that the research on this compound(Dirhodium(II) tetrakis(caprolactam)) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI