Superacidic low temperature cyclization of terpenylphenylsulfones

✍ Scribed by Veaceslav Kulciţki; Nicon Ungur; Pavel F. Vlad

• Book ID: 104209152
• Publisher: Elsevier Science
• Year: 1998
• Tongue: French
• Weight: 630 KB
• Volume: 54
• Category: Article
• ISSN: 0040-4020
• DOI: 10.1016/s0040-4020(98)83049-4

✦ Synopsis

The superacidic cyclization of aliphatic and partially cyclized C10-C2o terpenyiphenylsulfones proceeds structure-selectively and stereospecifically, affording ~-or mixtures of ¢t-and T-isomers of completely cyclized terpenylphenylsuifones. The configuration of the phenylsulfonylmethylene group in the cyclized products is predetermined by the configuration of the allylic double bond in the starting compounds.