Recommanded Product: 58656-04-5. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Tricyclohexylphosphonium tetrafluoroborate, is researched, Molecular C18H34BF4P, CAS is 58656-04-5, about PCy3-Catalyzed Ring Expansion of Aziridinofullerenes with CO2 and Aryl Isocyanates: Evidence for a Two Consecutive Nucleophilic Substitution Pathway on the Fullerene Cage. Author is Takeda, Youhei; Kawai, Hajime; Minakata, Satoshi.
A PCy3-catalyzed ring-expansion reaction of aziridine-fused fullerenes (aziridinofullerenes) through the insertion of CO2 and aryl isocyanates is disclosed. The reaction allows for CO2 fixation by aziridinofullerenes, producing oxazolidinone-fused fullerenes (oxazolidinofullerenes) in high yields, whereas treatment with aryl isocyanates led to a new fullerene family – imidazolidinone-fused fullerenes (imidazolidinofullerenes) – in good to high yields [e.g., aziridinofullerene I → oxazolidinofullerene II (86%) under conditions of in situ generation of PCy3 from its HBF4 salt and 30 atm CO2]. Furthermore, a mechanistically related unprecedented fullerenyl phosphonium salt was successfully isolated. Using the isolated salt, mechanistic studies were also investigated.
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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem