Regioselective catalytic conversion of hydrocarbons to versatile synthetic reagents via C-H bond functionalization
申请人:Johnson Samuel A.
公开号:US20110282087A1
公开(公告)日:2011-11-17
The present invention provides a novel and improved method of functionalizing a C—H bond of an arene compound comprising the step of reacting an organometallic compound having a group 14 element with the arene compound having at least one hydrogen bonded to a carbon in the presence of a catalyst.
Copper Iodide-Mediated Synthesis of α-Diimine Ligands from Bis(imidoyl chlorides) and Arylstannanes
作者:Thien Lieu、Olafs Daugulis
DOI:10.1021/acs.organomet.2c00264
日期:2022.11.28
were prepared by means of an operationally simple copper iodide-mediated Stille-type coupling between polyfluoro(chloro)aryl tributylstannanes and bis(imidoyl chlorides). Reactions proceed in commercial grade N, N-dimethylformamide (DMF) solvent at 70 °C and require no additives or bases. Couplings are successful for aryl stannanes possessing two or more fluoro or chloro substituents on the aromatic ring
芳基取代的 α-二亚胺是通过操作简单的碘化铜介导的多氟(氯)芳基三丁基锡烷和双(亚胺酰氯)之间的 Stille 型偶联制备的。反应在商业级N,N-二甲基甲酰胺 (DMF) 溶剂中在 70 °C 下进行,不需要添加剂或碱。对于芳环上具有两个或多个氟或氯取代基的芳基锡烷,偶联是成功的。产品以中等到良好的收率获得。这种方法允许简单合成可能用于烯烃聚合以及其他催化转化的 α-二亚胺配体。
Copper-catalyzed arylstannylation of arynes in a sequence
作者:Hideya Tanaka、Hitoshi Kuriki、Teruhiko Kubo、Itaru Osaka、Hiroto Yoshida
DOI:10.1039/c9cc02738f
日期:——
Copper-catalyzed arylstannylation of arynes has been developed. This transformation enables variously substituted ortho-stannylbiaryls and teraryls to be constructed straightforwardly. An electron-deficient tin center is the key, and thus the single or dual insertion of arynes into arylstannanes is precisely controllable by simply changing the equivalence of aryne precursors.
Catalytic C−H Bond Stannylation: A New Regioselective Pathway to C−Sn Bonds via C−H Bond Functionalization
作者:Meghan E. Doster、Jillian A. Hatnean、Tamara Jeftic、Sunjay Modi、Samuel A. Johnson
DOI:10.1021/ja105588v
日期:2010.9.1
ubiquitous Stille coupling reaction utilizes Sn-C bonds and is of great utility to organic chemists. Unlike the B-C bonds used in the Miyaura-Suzuki coupling reaction, which are readily obtained via direct borylation of C-H bonds, routes to organotin compounds via direct C-H bond functionalization are lacking. Here we report that the nickel-catalyzed reaction of fluorinatedarenes and pyridines with vinyl