Diels–Alder Reaction of 2-Ethenyl-1,3,3-trimethylcyclohexene with 4H-Chromen-4-ones: A Convergent Approach to ABCD Tetracyclic Core of Marine Diterpenoids Related to Puupehenone and Kampanols

✍ Scribed by Rajesh M. Kamble; M. M. V. Ramana

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: German
• Weight: 243 KB
• Volume: 94
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.201000188

✦ Synopsis

A rapid assembly of the tetracyclic core of marine diterpenoids related to puupehenone and kampanols by DielsÀAlder reaction of 2-ethenyl-1,3,3-trimethylcyclohexene with 4H-chromen-4-one (¼ 4H-1-benzopyran-4-one) dienophiles is described.