35173-74-1Relevant academic research and scientific papers
Lewis acid-catalyzed reactions in protic media. Lanthanide-catalyzed reactions of indoles with aldehydes or ketones
Chen, Depu,Yu, Libing,Wang, Peng George
, p. 4467 - 4470 (1996)
Lanthanide triflates were found to be effective catalysts for reactions of indoles with aldehydes or ketones in aqueous solution.
Trinuclear Lanthanide Coordination Clusters: Single-Molecule-Magnet Behavior and Catalytic Activity in the Friedel-Crafts Alkylation Reaction
Sarkar, Arijit,Gómez-García, Carlos J.,Benmansour, Samia,Nayek, Hari Pada
, p. 974 - 980 (2019)
A new multidentate ligand (H3L) was synthesized by the condensation reaction of 4-tert-butyl-2,6-diformylphenol and 2-amino-4-nitrophenol. The reaction of the ligand with hydrated lanthanide nitrate produced two isostructural trinuclear coordin
Highly enantioselective Friedel-Crafts reaction of indoles with imines by a chiral phosphoric acid
Kang, Qiang,Zhao, Zhuo-An,You, Shu-Li
, p. 1484 - 1485 (2007)
Highly enantioselective Friedel-Crafts reactions of indoles with imines catalyzed by a chiral phosphoric acid are developed, affording the 3-indolyl methanamine derivatives with up to >99% ee for a wide range of substrates. Copyright
A mild and environmentally friendly scandium(III) trifluoromethanesulfonate-catalyzed synthesis of bis(3′-indolyl)alkanes and bis(3′-indolyl)-1-deoxyalditols
Sato, Shingo,Sato, Toshihiro
, p. 2251 - 2255 (2005)
Bis(3′-indolyl)alkanes and bis(3′-indolyl) derivatives containing a 1-deoxyalditol moiety were synthesized in the presence of 5 mol % of scandium(III) trifluoromethanesulfonate [Sc(OTf)3] in CH 3CN or EtOH-H2O mixture as a
Novel method for synthesis of unsymmetrical bis(indolyl)alkanes catalyzed by ceric ammonium nitrate (CAN) under ultrasonic irradiation
Zeng, Xiao-Fei,Ji, Shun-Jun,Wang, Shun-Yi
, p. 10235 - 10241 (2005)
The reaction of indole with (1H-indol-3-yl)(alkyl) methanol was catalyzed efficiently by ceric ammonium nitrate under ultrasonic irradiation to afford the unsymmetrical bis(indolyl)alkane in good to excellent yields.
N-H...π(indole) intermolecular interactions in 3,3′-benzylidenediindole
Krishna,Velmurugan,Babu,Perumal
, p. 75 - 78 (1999)
In molecules of the title compound, C23H18N2, two indole systems and one phenyl ring are connected through a common C atom. The two indole substituents are mutually orthogonal. We have identified two N - H...π(indole) inte
Solvent-free indoles addition to carbonyl compounds promoted by CeCl 3·7H2O-NaI-SiO2: An efficient method for the synthesis of streptindole
Bartoli, Giuseppe,Bosco, Marcella,Foglia, Gioia,Giuliani, Arianna,Marcantoni, Enrico,Sambri, Letizia
, p. 895 - 900 (2004)
Efficient electrophilic substitution reactions of indoles with various carbonyl compounds proceed easily in solvent-free conditions using CeCl 3·7H2O-NaI-SiO2. system promoter, to afford the corresponding bis(1H-indol-3-yl
Metal–Organic Layers Hierarchically Integrate Three Synergistic Active Sites for Tandem Catalysis
Quan, Yangjian,Lan, Guangxu,Shi, Wenjie,Xu, Ziwan,Fan, Yingjie,You, Eric,Jiang, Xiaomin,Wang, Cheng,Lin, Wenbin
, p. 3115 - 3120 (2020/12/09)
We report the design of a bifunctional metal–organic layer (MOL), Hf12-Ru-Co, composed of [Ru(DBB)(bpy)2]2+ [DBB-Ru, DBB=4,4′-di(4-benzoato)-2,2′-bipyridine; bpy=2,2′-bipyridine] connecting ligand as a photosensitizer and Co(dmgH)2(PPA)Cl (PPA-Co, dmgH=dimethylglyoxime; PPA=4-pyridinepropionic acid) on the Hf12 secondary building unit (SBU) as a hydrogen-transfer catalyst. Hf12-Ru-Co efficiently catalyzed acceptorless dehydrogenation of indolines and tetrahydroquinolines to afford indoles and quinolones. We extended this strategy to prepare Hf12-Ru-Co-OTf MOL with a [Ru(DBB)(bpy)2]2+ photosensitizer and Hf12 SBU capped with triflate as strong Lewis acids and PPA-Co as a hydrogen transfer catalyst. With three synergistic active sites, Hf12-Ru-Co-OTf competently catalyzed dehydrogenative tandem transformations of indolines with alkenes or aldehydes to afford 3-alkylindoles and bisindolylmethanes with turnover numbers of up to 500 and 460, respectively, illustrating the potential use of MOLs in constructing novel multifunctional heterogeneous catalysts.
Application of alkaloid arundine and derivatives thereof in prevention and control of plant viruses and pathogenic bacteria
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Paragraph 0011; 0014-0015; 0025, (2021/07/01)
The invention relates to an application of alkaloid arundine and derivatives thereof in control of plant virus pathogens. It is found that arundine and derivatives I-1 to I-25 thereof show good anti-plant virus pathogen activity for the first time, and can well inhibit 14 plant germs including tobacco mosaic virus (TMV), cucumber fusarium wilt, peanut brown spot, apple ring spot, wheat sheath blight, corn bipolaris maydis, watermelon anthracnose, fusarium moniliforme, tomato early blight, wheat gibberellic disease, rice blast, phytophthora capsici, sclerotium of rape, cucumber gray mold and rice sheath blight.
Triarylmethyl Cation-Catalyzed Three-Component Coupling for the Synthesis of Unsymmetrical Bisindolylmethanes
Bardelski, Kevin,Brindle, Cheyenne S.,Chen, Zhenghua,Guarino-Hotz, Melissa,Jones, Vanessa A.,Lucas, Kelly,Patterson, William J.
supporting information, p. 6737 - 6742 (2021/12/31)
An efficient synthesis of unsymmetrical bisindolylmethanes has been accomplished using triarylmethyl cations to catalyze the reaction of N-arylimines with two different indoles. Optimization of the organocatalyst by tuning cation stability allows for excellent single addition selectivity when coupled with p-nitrophenyl imines. The optimal catalyst is commercially available, and the reaction minimizes waste and environmental impact by employing a one-to-one ratio of starting materials. The intermediates can be isolated or used in situ in a one-pot two-step reaction to generate unsymmetrical bisindolylmethanes in high yields. The reaction tolerates a broad range of imines with the highest yields observed for electron-poor and neutral imines. A wide range of indole nucleophiles are also successfully employed allowing for the creation of a large variety of unsymmetrical bisindolylmethanes.
