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.
Multifunctional Catalysis of Heteropoly Acid: One-Pot Synthesis of Quinolines from Nitroarene and Various Aldehydes in the Presence of Hydrazine
作者:Rahim Hekmatshoar、Sodeh Sajadi、Samaheh Sadjadi、Majid M. Heravi、Yahya S. Beheshtiha、Fatemeh F. Bamoharram
DOI:10.1002/jccs.200800177
日期:2008.12
12-Molybdophosphoric acid catalyzed transfer hydrogenation of nitroarene by hydrazine in a homogeneous phase. This catalytic system was applicable to one-potquinolinessynthesis in the presence of variousaldehydes in water. This method provides a new and efficient protocol in terms of mild reaction conditions, clean reaction profiles, small quantity of catalyst, and simple work-up procedure.
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.