Rhodium(III)-Catalyzed C–C Coupling of Arenes with 2-Vinyloxiranes: Synthesis of Allylic Alcohols
作者:Songjie Yu、Xingwei Li
DOI:10.1021/ol5000764
日期:2014.2.21
A rhodium(III)-catalyzed C–C coupling between 2-vinyloxiranes and arenes directed by different chelating groups has been realized via a C–Hactivation pathway. This reaction proceeded under conditions with a low catalyst loading, and allylic alcohols were isolated as the coupling products. A series of benzoazepanes has been synthesized by following this coupling.
Cobalt(III)-Catalyzed C–C Coupling of Arenes with 7-Oxabenzonorbornadiene and 2-Vinyloxirane via C–H Activation
作者:Lingheng Kong、Songjie Yu、Guodong Tang、He Wang、Xukai Zhou、Xingwei Li
DOI:10.1021/acs.orglett.6b01806
日期:2016.8.5
Co(III)-catalyzed mildC–C couplings of arenes with strained rings such as 7-oxabenzonorbornadienes and 2-vinyloxirane have been realized. The transformation is proposed to undergo ortho C–Hactivation, olefin insertion, and subsequent β-oxygen elimination. A broad range of synthetically useful functional groups are compatible, thus providing a new entry to access diversely 2-functionalized indoles
Air-Stable Manganese(I)-Catalyzed C−H Activation for Decarboxylative C−H/C−O Cleavages in Water
作者:Hui Wang、Mélanie M. Lorion、Lutz Ackermann
DOI:10.1002/anie.201702193
日期:2017.5.22
The decarboxylative C−H/C−O functionalization was accomplished by air‐ and water‐tolerant manganese(I) catalysis. The versatile C−H allylation occurred by facile organometallic C−H metalation on indoles, arenes, aminoacids and synthetically meaningful aryl ketimines with ample substrate scope and high levels of chemo‐, site‐ and regio‐selectivity.
脱羧的C / H / O功能化是通过耐空气和耐水的锰(I)催化完成的。通用的CH烯丙基化反应是由吲哚,芳烃,氨基酸和合成上有意义的芳基酮亚胺在分子上容易进行有机金属CH的金属化而形成的,具有足够的底物范围和高水平的化学,位点和区域选择性。