Synthesis of anti-[2,2] (2,6) azulenophane from 5-methyltropolone

✍ Scribed by Nobuo Kato; Yoshimasa Fukazawa; Shô Itô

• Publisher: Elsevier Science
• Year: 1976
• Tongue: French
• Weight: 224 KB
• Volume: 17
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)93813-9

✦ Synopsis

Transannular interaction between two benzene rings in cyclophanes attracted much attention ond many papers appeared concerning the synthesis of phanes incorporating various benzenoid and heteroaromatic rings (1). Interested in the possible transannulor interaction in 12,2] azuJenophane, in which two dipolar azulene rings ore facing each other, we have completed the synthesis starting from 5-methyltropolone (2),