Organohalogenite-Catalyzed Spiroketalization: Enantioselective Synthesis of Bisbenzannulated Spiroketal Cores
作者:Jijun Xue、Hongrui Zhang、Tian Tian、Keshu Yin、Dongxue Liu、Xianxing Jiang、Ying Li、Xiaojie Jin、Xiaojun Yao
DOI:10.1002/adsc.201500390
日期:2016.2.4
found and used for the enantioselective synthesis of bisbenzannulated spiroketals, the bioactive core of rubromycins, with high levels of enantioselectivity (up to 98% ee) via an organohalogenite‐mediated asymmetric intramolecular aromatic spiroketalization. This is the first organocatalytic method for the construction of optically pure bisbenzannulated spiroketals.
发现了一种新的以分子结构为中心的芳香族螺环缩酮化策略,并用于对苯二氮杂的螺环缩酮(红霉素的生物活性核心)的对映选择性合成,通过有机卤素介导的不对称分子内分子具有高水平的对映选择性(高达98%ee)。芳香族酮基化。这是构造光学纯的双苯并氮杂螺环酮的第一种有机催化方法。