Abstract
AbstractA general concise method for the synthesis phenanthridin‐6(5H)‐ones via photoinduced intramolecular annulation of N‐phenylbenzamides was developed. Under argon atmosphere and room temperature, phenanthridin‐6(5H)‐ones were obtained via irradiation N‐phenylbenzamides with a 280 nm UV lamp in the presence of methanesulfonic acid in toluene. The mechanism is illustrated and believed to proceed in the order of amides tautomerization, 6π‐electric cyclization, [1,5]‐H shift, amide‐imidine tautomerization, keto‐enol tautomerism and evolution hydrogen.magnified image
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
