Titania-Supported Iridium Subnanoclusters as an Efficient Heterogeneous Catalyst for Direct Synthesis of Quinolines from Nitroarenes and Aliphatic Alcohols
作者:Lin He、Jian-Qiang Wang、Ya Gong、Yong-Mei Liu、Yong Cao、He-Yong He、Kang-Nian Fan
DOI:10.1002/anie.201104089
日期:2011.10.17
A versatile heterogeneous catalyst consisting of sub‐nanosized iridium clusters deposited on titania (Ir/TiO2‐NCs) promotes the direct tandem synthesis of quinoline derivatives from readily available nitroarenes and aliphaticalcohols under mild and additive‐free conditions (see scheme). The process tolerates the presence of various reactive functional groups and is highly selective.
一种通用的多相催化剂,由沉积在二氧化钛上的亚纳米级铱簇(Ir / TiO 2 -NCs)组成,可促进在温和且无添加剂的条件下,由易得的硝基芳烃和脂肪族醇直接串联合成喹啉衍生物。该方法可耐受各种反应性官能团的存在,并且具有很高的选择性。
Assembly of Substituted 2-Alkylquinolines by a Sequential Palladium-Catalyzed CN and CC Bond Formation
作者:Yoshio Matsubara、Saori Hirakawa、Yoshihiro Yamaguchi、Zen-ichi Yoshida
DOI:10.1002/anie.201102076
日期:2011.8.8
Diversity: A range of substituted 2‐alkylquinolines can be prepared in a general and efficient synthetic approach that employs mild reaction conditions (see scheme). The synthesis is based on a sequential palladium‐catalyzed CN and CCbondformation, followed by palladium‐catalyzed aromatization, and results in the formation of the desired compounds in one step.
Ruthenium-catalyzed formal alkyl group transfer: Synthesis of quinolines from nitroarenes and alkylammonium halides
作者:Chan Sik Cho、Na Young Lee、Tae-Jeong Kim、Sang Chul Shim
DOI:10.1002/jhet.5570410320
日期:2004.5
Nitroarenes are reductively cyclized with an array of tetraalkylammonium halides and trialkylarnmonium chlorides in the presence of a catalytic amount of a ruthenium catalyst along with tin(II) chloride dihydrate at 180° to afford the corresponding quinolines in moderate to good yields. The addition of tin(II) chloride dihydrate is necessary for the effective formation of quinolines and toluene is
The synthesis of quinoline derivatives by cyclocondensation of anilines with 1,2‐ethanediol, 1,2‐propanediol, and 1,2‐butanediol in the presence of iron‐containing catalysts was performed for the first time.
Oxygen-implanted MoS<sub>2</sub> nanosheets promoting quinoline synthesis from nitroarenes and aliphatic alcohols <i>via</i> an integrated oxidation transfer hydrogenation–cyclization mechanism
作者:Chaofeng Zhang、Zhuyan Gao、Puning Ren、Jianmin Lu、Zhipeng Huang、Kaiyi Su、Shichao Zhang、Junju Mu、Feng Wang
DOI:10.1039/d1gc04058h
日期:——
with oxygen-implanting modification (O-MoS2) can work as a multifunctional catalyst to achieve the one-potquinolinesynthesisfrom basic nitroarenes and aliphatic alcohols. Different from common knowledge that the application of MoS2-based catalysts and above quinolinesynthesis need anaerobic conditions, we conduct the heterogeneous catalysis under an unusual air atmosphere. Catalyst characterization
我们在此报告了具有氧注入修饰的MoS 2 (O-MoS 2 )可以作为多功能催化剂来实现从碱性硝基芳烃和脂肪醇的一锅法合成喹啉。不同于众所周知的MoS 2基催化剂的应用及以上喹啉合成需要厌氧条件,我们在不寻常的空气气氛下进行多相催化。催化剂表征和实验结果表明,嵌入在 MoS 2骨架中的 MoO x簇,而不是配位不饱和 Mo 位点 (CUS Mo),主导了喹啉的生成。通过颠覆 MoS 上 O 2吸附的催化认识x可以使用一种有效的方法来原位修复 O-MoS 2中的 MoO x结构通过用额外的 H* 抑制不需要的 MoO x消除来保护 O-MoS 2催化剂,从而使基于 MoS 2的催化剂失活,我们创新地引入了 O 2成喹啉合成。坚固的 O-MoS 2无需再生即可连续使用 10 次,从硝基苯和乙醇中提取 2-甲基喹啉的收率可达 69-75%。此外,与传统的转移氢化-缩合机理不同,在O-MoS 2上