cycloalk-5-en-1-ols proceed with complete regio- and stereoselectivity to yield cis-2,6-dialkyl-3,5-oxygenated tetrahydropyrans and thus assemble in two steps the key structural unit present in marine syn-trans-fused polyether toxins.
2,3-环
氧环烷基-5-
烯-1-醇的环化/溶剂化反应具有完全的区域选择性和立体选择性,生成顺式
2,6-二烷基-3,5-
氧化的
四氢吡喃,因此分两步组装关键结构存在于海洋顺反融合聚醚毒素中的单元。