‡ These authors contributed equally Dedicated to Professor Dieter Enders Abstract A cationic ruthenium(II)-complex enabled unprecedented C–H methylations on indoles and pyrroles. The versatile catalyst proved to be widely applicable and delivered the methylated heteroarenes with excellent levels of positional selectivity and ample substrate scope. The robustness of the catalysts was reflected by the
作者:Weiping Liu、Sven C. Richter、Yujiao Zhang、Lutz Ackermann
DOI:10.1002/anie.201601560
日期:2016.6.27
The first manganese(I)‐catalyzed C−H allylations with ample scope were achieved by carboxylate assistance. The highly selective C−H/C−O functionalizations proved viable with densely substituted allyl carbonates, and the organometallic C−H allylation strategy set the stage for expedient late‐stage diversification with excellent levels of positional selectivity.
通过羧酸盐的辅助作用,第一个锰(I)催化的CH烯丙基化作用范围很大。事实证明,高选择性的C / H / C-O功能化可用于稠密取代的碳酸烯丙酯,有机金属的C-H烯丙基化策略可为后期分散化提供有利的条件,并具有出色的位置选择性。
A Water-Soluble Rhenium(I) Catalyst for the Regio- and Stereoselective C(sp<sup>2</sup>)–H Alkenylation of <i>N</i>-Pyridyl-/<i>N</i>-Pyrimidylindole and the N–H Alkenylation of <i>N</i>-Pyrimidylaniline Derivatives with Ynamides
作者:Sundaramoorthi Sarathkumar、Veerababurao Kavala、Ching- Fa Yao
DOI:10.1021/acs.orglett.0c04068
日期:2021.3.19
A water-soluble and low-valent rhenium(I) catalyst for the C2 alkenylation of N-pyridyl/N-pyrimidylindole derivatives with ynamides under mild conditions using water as the solvent has been described. The reaction of N-pyridyl/N-pyrimidyl indole with the ynamide afforded the C2-Z-selective alkenylation derivative as the sole product, and the reactions of N-pyrimidylanilines delivered the corresponding
A general and efficient Cp*CoIII-catalyzed C2-thiolation and C2,C3-dithiolation of indole derivatives has been achieved employing N-(aryl/alkylthio)succinimide as a thiolating reagent.
A highly selective Mn(I)-catalyzed alkenylation of arenes and heteroarenes with 1,3-diynes is described. The reported transformation overcomes regio-, chemo-, and stereoselectivity challenges associated with the use of these coupling partners. Both symmetrical and unsymmetrical diynes can be applied in this protocol, affording single isomers not only in the synthesis of 1,3-enynes but also in the one-step