A monolith immobilised iridium Cp* catalyst for hydrogen transfer reactions under flow conditions
作者:Maria Victoria Rojo、Lucie Guetzoyan、Ian. R. Baxendale
DOI:10.1039/c4ob02376e
日期:——
An immobilised iridium hydrogen transfer catalyst has been developed for use in flow based processing by incorporation of a ligand into a porous polymeric monolithic flow reactor.
一种固定的铱氢转移催化剂已经开发出来,用于流动式加工,通过将配体纳入多孔聚合物单体流动反应器中。
Phosphine‐NHC Manganese Hydrogenation Catalyst Exhibiting a Non‐Classical Metal‐Ligand Cooperative H
<sub>2</sub>
Activation Mode
作者:Ruqaya Buhaibeh、Oleg A. Filippov、Antoine Bruneau‐Voisine、Jérémy Willot、Carine Duhayon、Dmitry A. Valyaev、Noël Lugan、Yves Canac、Jean‐Baptiste Sortais
DOI:10.1002/anie.201901169
日期:2019.5.13
phosphonium ylide complex fac‐[Mn(CO)3(κ2P,C‐Ph2P=CHNHC)] (6 b) as key intermediate able to activate H2 via a non‐classical mode of metal‐ligand cooperation implying a formal λ5‐P–λ3‐P phosphorus valence change. Complex 2 is shown to be one of the most efficient pre‐catalysts for ketone hydrogenation in the MnI series reported to date (TON up to 6200).
3-Arylcarbonyl-1H-indoles useful as therapeutic agents
申请人:STERLING WINTHROP INC.
公开号:EP0444451A2
公开(公告)日:1991-09-04
2-R₂-R₄-substituted-3-R₃-CO-1-[(C-attached-N-heteryl)-(Alk)n]-1H-indoles useful as analgesic, anti-rheumatic, anti-inflammatory or anti-glaucoma agents.
Synthesis of β-heteroaryl propionates via trapping of carbocations with π-nucleophiles
作者:Tsung-hao Fu、Amy Bonaparte、Stephen F. Martin
DOI:10.1016/j.tetlet.2009.02.018
日期:2009.7
A variety of heterocyclic alcohols and acetates were Coupled with silyl ketene acetals and other pi-nucleophiles in the presence of trimethylsilyl trifluoromethanesulfonate to provide an array Of Substituted beta-heteroaryl propionates, including those with contiguous quaternary centers, as well as vinylogs thereof. This reaction also proceeds with high diastereoselectivity when the pi-nucleophile bears a chiral auxiliary. (C) 2009 Elsevier Ltd. All rights reserved.