Efficient catalytic one‐step synthesis of substituted quinoline derivatives using newly synthesized Ru(II) half‐sandwich complexes of the type [Ru(η6‐p‐cymene)Cl(L)] (L = pyrrole‐2‐aldehydehydrazones) under mild conditions is described. The synthesized complexes exhibit excellent catalytic activity towards the coupling of 2‐amino alcohol with functionalized ketones and secondary alcohols in the optimal
Silver-Catalyzed Three-Component Approach to Quinolines Starting from Anilines, Aldehydes, and Alcohols
作者:Xu Zhang、Zhiqiang Wang、Wenmin Liu、Ruixue Sun、Xuefeng Xu、Yanlei Yan
DOI:10.1055/s-0035-1561916
日期:——
A silver-catalyzed sequential formation of two C–C bonds for the construction of a series of polysubstituted quinolines from anilines, aldehydes, and alcohols under mild conditions has been developed. The transformation is effective for a broad range of substrates, including aliphatic alcohols, arylalkanols, cycloalkanols, and ethylene glycol, thereby permitting the expansion of the constituent architectures
Metallic complexes covalently bound to conjugated polymers and electronic devices containing such compositions
申请人:——
公开号:US20040072018A1
公开(公告)日:2004-04-15
The present invention relates to polymeric metal complexes comprising metallic complexes covalently bound to conjugated polymers and luminescent materials containing such polymeric metal complexes. The invention further relates to electronic devices in which the active layer includes such polymeric metal complexes.
C-Alkylation by Phenalenyl-Based Molecule <i>via</i> a Borrowing Hydrogen Pathway
作者:Ananya Banik、Paramita Datta、Swadhin K. Mandal
DOI:10.1021/acs.orglett.3c00223
日期:2023.3.3
The present study demonstrates the first transition-metal-free catalytic C-alkylation via a borrowing hydrogen pathway for the α-alkylation of ketone, synthesis of substituted quinoline, and 9-monoalkylation of fluorene. With applications on diversification of biologically active molecules and gram-scale synthesis, a preliminary investigation of the reaction mechanism has been carried out, suggesting
Ru(II)‐p‐cymene complexes containing hydrazone ligands catalyzed α‐alkylation of ketones and one‐pot synthesis of bioactive quinolines and 3‐(quinolin-2-yl)‐2H‐chromen‐2‐one
scope of the reaction was extended to different aromaticketones and primary alcohols. Onepotsynthesis of several bioactive quinolines was achieved using aromaticketones and amino alcohols as coupling partners in the presence of complex 1 as a catalyst. Further, complex 1 catalyzed the onepotsynthesis of 3-(quinolin-2-yl)-2H-chromen-2-one from 2-aminobenzyl alcohol and 3-acetyl coumarin, which
合成并表征了含有基于水杨醛的腙配体 (L1-L4) 的Ru(II)-芳烃配合物 ( 1-4 )。配合物1的分子结构已通过单晶 X 射线晶体学解析。配体通过 O 和 N 原子与 Ru 中心配位。在苯乙酮与苯甲醇的 α-烷基化反应中测试了所有配合物的催化活性。配合物1在优化条件下表现出更好的活性,转化率为 97%。然后,使用络合物1,将反应范围扩展到不同的芳香酮和伯醇。以芳香酮和氨基醇为偶联剂,在络合物存在下一锅合成多种具有生物活性的喹啉1作为催化剂。此外,络合物1催化了2-氨基苯甲醇和3-乙酰香豆素一锅法合成3-(喹啉-2-基)-2 H -chromen-2-one,为制备该化合物开辟了一条新的合成途径.