Stereocontrolled Assembly of Cis <i>or</i> Trans Angularly Substituted Hydrindenes by the Unactivated Intramolecular Diels−Alder Reaction
作者:Douglass F. Taber、Ying Song
DOI:10.1021/jo9610974
日期:1996.1.1
We here report that through the choice of the proper substituents, it is possible to make the unactivated intramolecular Diels-Alder reaction proceed to give either the cis angularly-substituted hydrindene 12b or the trans product 19a.
未激活的分子内Diels-Alder反应已成为构建多环天然产物的有力工具。然而,在这些环化中控制非对映选择性的因素尚未完全了解。我们在此报告,通过选择适当的取代基,可以使未活化的分子内Diels-Alder反应进行,以得到顺式角取代的茚12b或反式产物19a。