Efficient and novel one-pot synthesis of polycycles bearing cyclols by FeCl3-promoted [2 + 2] cycloaddition: application to cannabicyclol, cannabicyclovarin, and ranhuadujuanine A
摘要:
利用 FeCl3 促进的 [2 + 2] 环加成反应,从容易获得的具有多种取代基的苯并吡喃中开发出简单易行的合成路线,用于制备具有生物学意义的环醇多环。作为该方法的例子,大麻二环醇、大麻二环素和ranhuadujuanine A 的一步合成以良好的产率完成。
EDDA-catalyzed rapid synthetic routes for biologically interesting polycycles bearing citrans and chalcones: the first total synthesis of sumadain A
作者:Xue Wang、Yong Rok Lee
DOI:10.1016/j.tet.2009.10.045
日期:2009.12
An efficient and concise syntheticroute for biologically interesting polycycles bearing citran and chalcone nuclei was developed starting from a variety of trihydroxybenzenes with substituents on the ring. The key strategies involved an ethylenediamine diacetate-catalyzed cyclization by a domino aldol-type/electrocyclization/H-shift/hetero Diels–Alder reaction of trihydroxybenzenes and citral or trans
Efficient and General Preparation of Pyranostilbenes: First Total Synthesis of Artocarbene and Pawhuskin B
作者:Yong Lee、Byung Park、Won Lyoo
DOI:10.1055/s-0029-1216842
日期:2009.7
the reaction of pinosylvin with the appropriate α,β-unsaturated aldehyde catalyzed by ethylenediamine diacetate. As an application of this methodology, biologically active natural products artocarbene and pawhuskin B were synthesized by a convergent sequence from commercially available aldehydes. heterocycles - alkenes - phenols - artocarbene - pawhuskin B
Efficient and novel one-pot synthesis of polycycles bearing cyclols by FeCl3-promoted [2 + 2] cycloaddition: application to cannabicyclol, cannabicyclovarin, and ranhuadujuanine A
作者:Xin Li、Yong Rok Lee
DOI:10.1039/c3ob42110d
日期:——
Simple and facile synthetic routes for the preparation of biologically interesting cyclol bearing polycycles were developed using FeCl3-promoted [2 + 2] cycloaddition from readily available benzopyrans possessing a variety of substituents. As examples of this methodology, one-step syntheses of cannabicyclol, cannabicyclovarin, and ranhuadujuanine A were accomplished in good yield.
利用 FeCl3 促进的 [2 + 2] 环加成反应,从容易获得的具有多种取代基的苯并吡喃中开发出简单易行的合成路线,用于制备具有生物学意义的环醇多环。作为该方法的例子,大麻二环醇、大麻二环素和ranhuadujuanine A 的一步合成以良好的产率完成。