Metathesis of aniline and 1,2-dihydroquinoline derivatives
作者:Paul Evans、Ronald Grigg、Michael Monteith
DOI:10.1016/s0040-4039(99)00993-4
日期:1999.7
Ring closing metathesis of N,N-diallylanilines and a related 1,2-dihydroquinoline, catalysed by Grubbs' catalyst, occurs in good yield at room temperature furnishing 3-pyrrolines and 3-piperidines. DCM and EtOAc are the solvents of choice and interesting substituent effects are identified and discussed.
A convenient one-pot synthesis of N-aryl-3-pyrrolines
作者:Karamil Jayaprakash、Chittoor S. Venkatachalam、Kalpattu K. Balasubramanian
DOI:10.1016/s0040-4039(99)01334-9
日期:1999.8
N-propargylanilines, under one-pot homologation conditions, undergo an in situ cyclisation catalysed by Cu(I) to yield 3-pyrrolines in good yield. (C) 1999 Elsevier Science Ltd. All rights reserved.
Ruthenium-Catalyzed Olefin Metathesis in Ionic Liquids
作者:Rogier C. Buijsman、Elizabeth van Vuuren、Jan Gerard Sterrenburg
DOI:10.1021/ol016769d
日期:2001.11.1
[GRAPHICS]Ionic liquid 1-butyl-3-methylimidazollumhexafluorophosphate ([bmim]PF6) is described as an effective medium for ring-closing metathesis (RCM) using Grubbs catalysts. When [bmim]PF6 Was used as solvent, the RCIVI showed high conversions and a broad substrate tolerance. [bmim]PF6 and the ruthenium catalyst were recycled after extraction of the product in the organic phase for at least three cycles.
[EN] 3-AZABICYCLO [3.1.0] HEXANE VANILLOID RECEPTOR LIGANDS, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND PROCESSES FOR THEIR PREPARATION<br/>[FR] 3-AZABICYCLO[3.1.0]HEXANES LIGANDS DU RÉCEPTEUR VANILLOÏDE, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:GLENMARK PHARMACEUTICALS SA
公开号:WO2008010061A2
公开(公告)日:2008-01-24
[EN] The present invention relates to substituted 3-azabicyclo [3.1.0] hexane derivatives, which are useful as vanilloid receptor ligands, methods of treating diseases, conditions and/or disorders modulated by vanilloid receptors with them, and processes for preparing them. [FR] La présente invention concerne des dérivés substitués de 3-azabicyclo[3.1.0]hexane utilisables en tant que ligands du récepteur vanilloïde, ainsi que des procédés qui les utilisent pour traiter des maladies, des affections et/ou des troubles induits par les récepteurs vanilloïdes et des procédés permettant de les préparer.
Highly efficient Ru(<scp>ii</scp>)–alkylidene based Hoveyda–Grubbs catalysts for ring-closing metathesis reactions
作者:Mariam Y. Al-Enezi、Elizabeth John、Yehia A. Ibrahim、Nouria A. Al-Awadi
DOI:10.1039/d1ra07428h
日期:——
Three novel phosphine-free Ru-alkylidenes (7a–7c) have been synthesized and utilized as efficient catalysts for ring closing metathesis (RCM) reaction. Spectroscopic data, i.e. NMR and HRMS, along with single crystal X-ray diffraction analysis, were used to confirm their chemical structures. The tosylated carbenoid 7b showed the highest efficiency in cyclizing different acyclic diene substrates. RCM
已经合成了三种新型的不含膦的 Ru-亚烷基 ( 7a-7c ),并将其用作闭环复分解 (RCM) 反应的有效催化剂。光谱数据,即NMR 和 HRMS,以及单晶 X 射线衍射分析,用于确认它们的化学结构。甲苯磺酰化的类胡萝卜素7b在环化不同的无环二烯底物方面表现出最高的效率。与众所周知的 Grubbs 相比,仅使用催化量 (0.5–2.0 mol%) 的添加剂催化剂 ( 7b ) 就可以很好地耐受各种(未)取代的N、N-二烯丙基苯胺衍生物的 RCM 和不同大分子二烯的立体选择性 RCM (II) 和 Hoveyda-Grubbs (II) 催化剂。