Cooperative Lewis Acid/Cp*Co
<sup>III</sup>
Catalyzed C−H Bond Activation for the Synthesis of Isoquinolin‐3‐ones
作者:Ju Hyun Kim、Steffen Greßies、Frank Glorius
DOI:10.1002/anie.201601003
日期:2016.4.25
A facile route toward the synthesis of isoquinolin‐3‐ones through a cooperative B(C6F5)3‐ and Cp*CoIII‐catalyzed C−H bond activation of imines with diazo compounds is presented. The inclusion of a catalytic amount of B(C6F5)3 results in a highly efficient reaction, thus enabling unstable NH imines to serve as substrates.
提出了一种通过协同的B(C 6 F 5)3-和Cp * Co III催化的重氮化合物亚胺的CH键活化合成异喹啉-3-酮的简便方法。包含催化量的B(C 6 F 5)3导致高效反应,从而使不稳定的NH亚胺成为底物。
Redox‐Neutral Manganese(I)‐Catalyzed C−H Activation: Traceless Directing Group Enabled Regioselective Annulation
作者:Qingquan Lu、Steffen Greßies、Sara Cembellín、Felix J. R. Klauck、Constantin G. Daniliuc、Frank Glorius
DOI:10.1002/anie.201707396
日期:2017.10.2
groups (TDGs) are used to promote the redox‐neutral MnI‐catalyzed regioselectivesynthesis of N‐heterocycles. Alkyne coupling partners bearing a traceless directing group, which serves as both the chelator and internal oxidant, were used to control the regioselectivity of the annulation reactions. This operationally simple approach is highly effective with previously challenging unsymmetrical alkyne