1140-08-5Relevant academic research and scientific papers
Synthesis of Seven-Membered Azepino[3,2,1- hi]indoles via Rhodium-Catalyzed Regioselective C-H Activation/1,8-Diazabicyclo[5.4.0]undec-7-ene-Catalyzed Intramolecular Amidation of 7-Phenylindoles in One Pot
Yuan, Yumeng,Pan, Guoshuai,Zhang, Xiaofeng,Li, Buhong,Xiang, Shengchang,Huang, Qiufeng
, p. 14701 - 14711 (2019/11/19)
An unprecedented rhodium-catalyzed regioselective C-H activation/1,8-diazabicyclo[5.4.0]undec-7-ene-catalyzed intramolecular amidation of 7-arylindoles with diazomalonates is described that provides a straightforward route to seven-membered azepino[3,2,1-hi]indoles in good to excellent yields in one pot. A wide range of functional groups, including F, OMe, NPh2, SiMe3, Cl, CN, CHO, COMe, CO2Me, CF3, and NO2, were all well-tolerated.
Pyridazine N-Oxides as Precursors of Metallocarbenes: Rhodium-Catalyzed Transannulation with Pyrroles
Kanchupalli, Vinaykumar,Joseph, Desna,Katukojvala, Sreenivas
, p. 5878 - 5881 (2015/12/11)
Pyridazine N-oxides are used for the first time as precursors of metallocarbenes. These nitrogen-rich heterocycles led to the discovery of a novel acceptor and donor-acceptor enalcarbenoids. The synthetic utility of these metallocarbenes was demonstrated in the rhodium-catalyzed denitrogenative transannulation of pyridazine N-oxides with pyrroles to the valuable alkyl, 7-aryl, and 7-styryl indoles. The transannulation strategy was applied to the synthesis of a potent anticancer agent.
