H8‐BINOL‐Derived Chiral η6‐Benzene Ligands: New Opportunities for the Ruthenium‐Catalyzed Asymmetric C−H Activation
作者:Junxuan Li、Guodong Wang、Weicong Guo、Jijun Jiang、Jun Wang
DOI:10.1002/anie.202405782
日期:——
A class of (S)-H8-BINOL-derived chiral η6-benzene ligands has been developed, which can coordinate with ruthenium(II) highly site-selectively.The related chiral ruthenium(II) catalysts proved highly effective for the asymmetric C−H activation of N-sulfonyl ketimines with alkynes, affording a series of chiral spirocyclic sultams in up to 99 % yield with up to >99 % ee.
我们开发了一类( S )-H 8 -BINOL衍生的手性η 6 -苯配体,它可以高度位点选择性地与钌(II)配位。相关的手性钌(II)催化剂被证明对于不对称反应非常有效用炔烃对 N-磺酰基酮亚胺进行 C−H 活化,得到一系列手性螺环磺内酰胺,产率高达 99%,ee 高达 >99%。