在{Ru(acac)2 }平台上(acac =乙酰丙酮酸)可以说明α-二亚胺类似物,二/四氢双异喹啉(L1-2H / L2-4H)和联咪唑并吡啶(L3)的不同反应谱。在与{Ru(acac)2 }配位时提高Lewis酸度,以及对配体主链进行微调,导致L1-2H / L2-4H氧化脱氢,生成金属化的双异喹啉(BIQ)和未开发的C-C偶联/亲核攻击辅助L3处的开环反应可重排为修饰的金属化酰胺化物功能。在[Ru II / III(acac)2(L1-2H)] n +(1 n +中,将包含胺官能团的预制L1-4H原位转化为亚胺,n= 0.1),然后脱氢以产生[Ru II / III(acac)2(BIQ)] n +(2 n +,n= 0.1)。包含二亚胺(L2-4H)配体的类似络合物[Ru II(acac)2(L2-4H)] n +(3 n +,n = 0,1)也参与了类似的脱氢过程,从而生成2 n
N , N '-Bis(pyridin-2-ylmethyl)oxalamide (BPMO) 被发现是 Cu 催化的恶唑烷酮和伯胺和仲胺在室温下与(杂)芳基碘化物的N-芳基化的合适促进剂。芳基碘化物和芳基溴化物之间达到了优异的化学选择性,并且广泛的官能团可以耐受反应条件,从而导致形成多种多样的N-芳基化产物。
Assembly of α‐(Hetero)aryl Nitriles via Copper‐Catalyzed Coupling Reactions with (Hetero)aryl Chlorides and Bromides
作者:Ying Chen、Lanting Xu、Yongwen Jiang、Dawei Ma
DOI:10.1002/anie.202014638
日期:2021.3.22
conditions, affording α‐(hetero)arylacetonitriles via one‐pot decarboxylation. Additionally, the CuBr/oxalic diamide catalyzed coupling of (hetero)aryl bromides with α‐alkyl‐substituted ethyl cyanoacetates proceeds smoothly at 60 °C, leading to the formation of α‐alkyl (hetero)arylacetonitriles after decarboxylation. The method features a general substrate scope and is compatible with various functionalities
Self-assembly of an organometallic side-by-side double helix
作者:Christopher S. A. Fraser、Dana J. Eisler、Michael C. Jennings、Richard J. Puddephatt
DOI:10.1039/b203183c
日期:2002.5.17
The first polymeric organometallic double helix has been synthesized by self-assembly through hydrogen bonding by using a biomimetic strategy and a new side-by-side structural motif.
Cu/Oxalic Diamide-Catalyzed Coupling of Terminal Alkynes with Aryl Halides
作者:Ying Chen、Sailuo Li、Lanting Xu、Dawei Ma
DOI:10.1021/acs.joc.2c02882
日期:2023.3.3
6-Dimethylphenyl)-N2-(pyridin-2-ylmethyl)oxalamide (DMPPO) was revealed to be a more effective ligand for copper-catalyzedcouplingreaction of (hetero)aryl halides with 1-alkynes than previously reported ones. Only 3 mol % CuCl and DMPPO are required to make the coupling complete at 100 °C (for bromides) and 80 °C (for iodides). Both (hetero)aryl and alkyl substituted 1-alkynes worked well under these conditions
N 1 -(2,6-二甲基苯基)- N 2 -(吡啶-2-基甲基)草酰胺 (DMPPO) 被发现是铜催化的(杂)芳基卤化物与 1-炔烃偶联反应的更有效配体以前报道过的。仅需 3 mol% CuCl 和 DMPPO 即可在 100 °C(溴化物)和 80 °C(碘化物)下完成偶联。(杂)芳基和烷基取代的 1-炔烃在这些条件下都表现良好,导致内部炔烃的形成具有很大的多样性。
Copper‐Catalyzed α‐Arylation of Nitroalkanes with (Hetero)aryl Bromides/Iodides
作者:Jianqiang Huang、Taian Li、Xiaobiao Lu、Dawei Ma
DOI:10.1002/anie.202315994
日期:2024.2.12
(hetero)aryl/alkenyl halides (Br, I) is described here. The method relies on using some newly developed oxalamide ligands, and gives coupling products in great diversity. Since the coupling products can be conveniently transformed into the corresponding α-(hetero)aryl amines, ketones, carboxylic acids and aldehydes, our method provides a highly competitive approach for preparing these compounds from readily
OXALIC ACID MONOAMIDE LIGAND, AND USES THEREOF IN COUPLING REACTION OF COPPER-CATALYZED ARYL HALOGEN SUBSTITUTE
申请人:Shanghai Institute of Organic Chemistry, Chinese
Academy of Sciences
公开号:EP3326715A1
公开(公告)日:2018-05-30
The present invention provides oxalic amide ligands and uses thereof in copper-catalyzed coupling reaction of aryl halides. Specifically, the present invention provides a use of a compound represented by formula I, wherein definitions of each group are described in the specification. The compound represented by formula I can be used as a ligand in copper-catalyzed coupling reaction of aryl halides for the formation of C-N, C-O and C-S bonds.
本发明提供了草酸酰胺配体及其在铜催化的芳基卤化物偶联反应中的用途。具体而言,本发明提供了一种由式 I 代表的化合物的用途,其中各基团的定义在说明书中有所描述。式 I 所代表的化合物可用作铜催化的芳基卤化物偶联反应中的配体,用于形成 C-N、C-O 和 C-S 键。