Rhodium‐Catalyzed Cyclization of Terminal and Internal Allenols: An Atom Economic and Highly Stereoselective Access Towards Tetrahydropyrans
作者:Johannes P. Schmidt、Bernhard Breit
DOI:10.1002/ange.202009166
日期:2020.12.21
AbstractA comprehensive study of a diastereoselective Rh‐catalyzed cyclization of terminal and internal allenols is reported. The methodology allows the atom economic and highly syn‐selective access to synthetically important 2,4‐disubstituted and 2,4,6‐trisubstituted tetrahydropyrans (THP). Furthermore, its utility and versatility are demonstrated by a great functional‐group compatibility and the
摘要报道了末端和内部联烯醇的非对映选择性 Rh 催化环化的综合研究。该方法允许原子经济且高度顺‐选择性获得合成上重要的2,4-二取代和2,4,6-三取代四氢吡喃(THP)。此外,其良好的官能团兼容性和 (−)-centrolobine 的对映选择性全合成证明了其实用性和多功能性。