A novel intramolecular arene–alkene photocycloaddition in 2-alkenyl naphtha-4-chromanones—a short route to functionalised multicyclic systems

✍ Scribed by Govind P. Kalena; Padmanava Pradhan; Vedavati S. Puranik; Asoke Banerji

• Publisher: Elsevier Science
• Year: 2003
• Tongue: French
• Weight: 132 KB
• Volume: 44
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(03)00230-2

✦ Synopsis

On irradiation, 2-methyl-2-ethenyl naphtha-4-chromanone 1 undergoes an unusual intramolecular arene-alkene photocyclisation, followed by rearrangements to give a [5.3.1.0 6,1 ]benzotricycloundecene, 5.