Abstract
6-Ethoxycarbonyl-5-hydroxy-benzo[a]carbazoles were prepared from ethyl 3-(1-methyl-1H-indol-3-yl)-3-oxopropanoates in two steps: the first step involved α-arylation of the indicated starting materials via Ullmann–Hurtley reaction; in the key second step, the thus formed coupling products underwent oxidative photocyclization to afford the benzo[a]carbazole ring. The present photocyclization features the use of CuBr2 to prompt the transformations, which could not be realized under the conventional conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.