Chiral Heterodisulfoxide Ligands in Rhodium-Catalyzed Asymmetric 1,4-Addition of Arylboronic Acids to Chromenones
作者:Fuzhong Han、Guihua Chen、Xiangyang Zhang、Jian Liao
DOI:10.1002/ejoc.201100387
日期:2011.6
A new family of benzene-based chiral heterodisulfoxide ligands L1-L5 was synthesized in a single step. These disulfoxide ligands were applied in the rhodium-catalyzed asymmetric 1,4-addition of arylboronic acids to chromenones. The addition of diverse arylboronic acids to chromenones proceeds smoothly in up to 70% yield with up to 95% ee.
一个新的苯基手性杂二亚砜配体 L1-L5 是一步合成的。这些二亚砜配体用于铑催化的芳基硼酸与色酮的不对称 1,4-加成反应。将各种芳基硼酸添加到色酮中的过程可以顺利进行,产率高达 70%,ee 高达 95%。