5-Adamantylated 1,2,4-Trioxanes: Adamantane Position is Crucial for Antiparasitic Activity
作者:Axel Griesbeck、Viktor Schlundt
DOI:10.1055/s-0030-1261225
日期:2011.10
Allylic alcohols with 1′- and 2′-adamantanyl functionalization, available by reaction of 3-methylcrotonaldehyde with 1- and 2-bromoadamantane, respectively, were reacted with singlet oxygen under solution conditions with high diastereoselectivities to give the β-hydroperoxy alcohols. Lewis acid catalyzed peroxyacetalization of the β-hydroperoxy alcohols resulted in two sets of 1,2,4-trioxanes. The
通过3-甲基巴豆醛分别与1-和2-溴金刚烷反应获得的具有1'-和2'-金刚烷基官能化的烯丙醇在高非对映选择性的溶液条件下与单线态氧反应,得到β-氢过氧醇。路易斯酸催化β-氢过氧醇的过氧缩醛化反应,得到两组1,2,4-三恶烷。在单线态氧合和路易斯酸处理后,烯丙醇11递送了重排产物-应变较小的伯氢过氧化物。 单线态氧-烯反应-过氧化物-过缩醛化-三恶烷