The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Dirhodium(II) tetrakis(caprolactam)( cas:138984-26-6 ) is researched.Computed Properties of C24H40N4O4Rh2.Wang, Hong-Tu; Lu, Chong-Dao published the article 《Synthesis of 3,4-dihydropyrrolo[2,1-a]isoquinolines based on [3+2] cycloaddition initiated by Rh2(cap)4-catalyzed oxidation》 about this compound( cas:138984-26-6 ) in Tetrahedron Letters. Keywords: azomethine ylide dipolarophile rhodium catalyzed oxidation dipolar cycloaddition; hydropyrroloisoquinoline preparation. Let’s learn more about this compound (cas:138984-26-6).
Azomethine ylides were efficiently generated via Rh2(cap)4-catalyzed oxidation (cap = caprolactamate) of tetrahydroisoquinolines in the presence of base. The ylides were trapped in situ via [3+2] cycloaddition with dipolarophiles and were subjected to oxidative aromatization, facilitated by N-bromosuccinimide, to provide 3,4-dihydropyrrolo[2,1-a]isoquinolines in moderate to excellent yields.
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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI