Synthesis and Rhodium(II)-Mediated Cascade Cyclopropanation/Rearrangement/Isomerization of Diazo 2,3,5-Trisubstituted Furans: The Construction of Penta-substituted Aromatic Compounds

Autor: Jianbo Wang, Guisheng Deng, Qin Yang, Jianfang Zhang, Yang Zhu
Rok vydání: 2020
Předmět:
Zdroj: The Journal of Organic Chemistry. 85:2395-2405
ISSN: 1520-6904
0022-3263
Popis: Ag(I)-catalyzed synthesis of diazo-trisubstituted furans starting from diazo-cumulated allenyl ketones has been investigated. The Rh2(OAc)4-catalyzed reaction of the diazo 2,3,5-trisubstituted furans provided penta-substituted aromatics via cascade intermolecular cyclopropanation/rearrangement/isomerization. The cyclopropanation on the furan ring/rearrangement of cyclopropane moiety has been reported. A reasonable mechanism is proposed.
Databáze: OpenAIRE