109809-52-1Relevant articles and documents
2-aminopyridinium ions activate nitroalkenes through hydrogen bonding
Takenaka, Norito,Sarangthem, Robindro Singh,Seerla, Sreehari Kumar
, p. 2819 - 2822 (2007)
2-Aminopyridinium ions were found to activate nitroalkenes toward conjugate addition of heteroaromatic compounds with low catalyst loadings and the Diels Alder reaction with the periselectivity opposite to that observed with metal Lewis acids, raising the
H-bonding organocatalysed Friedel-Crafts alkylation of aromatic and heteroaromatic systems with nitroolefins
Dessole, Gabriella,Herrera, Raquel P.,Ricci, Alfredo
, p. 2374 - 2378 (2004)
Catalytic amounts (10 mol%) of bis-arylureas and -thioureas promote the Friedel-Crafts alkylation with nitroolefins of aromatic and heteroaromatic N-containing derivatives. A sizeable improvement of the yields is noticed on running the reactions in the ab
Water-soluble (salicyladimine)2Cu complex as an efficient and renewable catalyst for Michael addition of indoles to nitroolefins in water
Jiang, Haojie,Zhang, Jie,Xie, Jianwei,Liu, Ping,Xue, Mei
, p. 211 - 216 (2017)
An efficient and environmentally friendly protocol has been demonstrated for water-soluble (salicyladimine)2Cu complex-catalyzed Michael addition of indoles to nitroolefins in water at 30 °C. A variety of substituted indoles and β-nitrostyrenes could be worked well to provide the title products in 81–97% yields. Moreover, the catalyst can be reused directly at least for four times without significantly decreasing activity.
Efficient michael addition of indoles using bismuthyl perchlorate as catalyst
Mohammadpoor-Baltork, Iraj,Reza Memarian, Hamid,Reza Khosropour, Ahmad,Nikoofar, Kobra
, p. 1837 - 1843 (2006)
An efficient method for Michael addition of indoles hasbeen developed using bismuthyl perchlorate (BiOClO4·xH2O) as catalyst. The reaction proceeds to give 3-substituted indoles excellently stirring indoles and Michael acceptors in acetonitrile in the presence of the catalyst at room temperature or in much shorter reaction times under sonication at ambient temperature.{A figure is presented}.
Sulfamic acid-catalyzed Michael addition of indoles and pyrrole to electron-deficient nitroolefins under solvent-free condition
An, Li-Tao,Zou, Jian-Ping,Zhang, Li-Li,Zhang, Yong
, p. 4297 - 4300 (2007)
Sulfamic acid (SA) effectively catalyze the Michael addition of indoles and pyrrole to nitroolefins under solvent-free condition to afford the corresponding Michael adducts in good to excellent yields.
Mild and Regioselective Three-component Heteroarylation-Nitration of Alkenes with Imidazo[1,2-a]pyridines and tert-Butyl Nitrite
Liu, Ping,Sun, Peipei,Xie, Shentong,Zhang, Jie
supporting information, (2020/05/25)
An efficient and regioselective three-component heteroarylation-nitration of alkenes with imidazo[1,2-a]pyridines and tert-butyl nitrite has been developed. The process tolerants a variety of functional groups under mild conditions in the absence of catalysts and additives to give nitro functionalized imidazo[1,2-a]pyridine derivatives in moderate to good yields. The reaction is also applicable for some other aza-heterocycles. (Figure presented.).
Design of a Primary-Amide-Functionalized Highly Efficient and Recyclable Hydrogen-Bond-Donating Heterogeneous Catalyst for the Friedel-Crafts Alkylation of Indoles with β-Nitrostyrenes
Markad, Datta,Mandal, Sanjay K.
, p. 3165 - 3173 (2019/03/26)
A primary-amide-functionalized metal organic framework, {[Zn2(2-BQBG)(BDC)2]·10H2O}n (1) (in which 2-BQBG = 2,2′-(butane-1,4-diylbis((quinolin-2-ylmethyl)azanediyl))diacetamide and BDC = 1,4-benzenedicarboxylate
