One-pot synthesis of highly fluorescent polycyclic benzimidazole derivatives
作者:Susanta Kumar Manna、Suresh Kumar Mondal、Atiur Ahmed、Arabinda Mandal、Atanu Jana、Mohammed Ikbal、Shubhankar Samanta、Jayanta K. Ray
DOI:10.1039/c3ra44521f
日期:——
An efficient one pot synthesis of polycyclic benzimidazole derivatives has been developed (up to 90% yield). The protocol is very mild, metal-free, and not restricted to anhydrous conditions. It also demonstrates an example of preferential electrocyclic reaction over Michael reaction. These new benzimidazole derivatives are highlyfluorescent and show a dramatic change with pH; The characteristic bright
Organocatalytic Approach for the Synthesis and Biological Studies of Naphthalene Fluorescent Probe through Hydrogen Transfer Reaction
作者:Madan Sau、Sapana Dubey、Jigyansa Sahoo、Gokarneswar Sahoo、Pragya Trivedi、Avijit Jana、Subhankar Samanta、Tapas Das
DOI:10.1002/ejoc.202201188
日期:2022.12.12
Herein we report an organocatalytic synthesis of highly fluorescent naphthalene derivatives through hydrogen atom transfer featuring neat and mild reaction conditions under air with high substrate tolerance along with atom economy by the unprecedented use of DBU, where oxidation and reduction occurred in one-pot. Synthesized compounds are utilized in photophysical studies, cytotoxic studies and cell