Works matching DE "CINCHONA alkaloids"

Results: 215

SYNTHESIS, SPECTOSCOPIC, THERMAL, AND MOPHOLOGICAL STUDIES OF METAL-BASED COMPLEXES DERIVED FROM THE REACTION OF CINCHONINE WITH MANGANESE(II), NICKEL(II), AND ZINC(II) IONS.

Published in:

Bulletin of the Chemical Society of Ethiopia, 2025, v. 39, n. 6, p. 1095, doi. 10.4314/bcse.v39i6.6

By:

Refat, Moamen S.;
Adam, Abdel Majid A.;
Mohsen, Q.;
Alsuhaibani, Amnah Mohammed

Publication type:

Article

Recent Advances in the Enantioselective Organocatalytic [4+2] Cycloadditions.

Published in:

Molecules, 2025, v. 30, n. 9, p. 1978, doi. 10.3390/molecules30091978

By:

Bauer, Tomasz

Publication type:

Article

The Quinine Odyssey: A Barometer of the State of Organic Synthesis Over Centuries.

Published in:

Chemistry - A European Journal, 2024, v. 30, n. 69, p. 1, doi. 10.1002/chem.202403021

By:

Bissember, Alex C.

Publication type:

Article

H‐Bond Donor‐Directed Switch of Diastereoselectivity in the Enantioselective Intramolecular Aza‐Henry Reaction of Ketimines.

Published in:

Chemistry - A European Journal, 2024, v. 30, n. 63, p. 1, doi. 10.1002/chem.202402488

By:

Tian, Jun‐Song;
Yi‐Gong;
Wu, Zhong‐Wei;
Yu, Jin‐Sheng;
Zhou, Jian

Publication type:

Article

Construction of Enantiomerically Enriched Diazo Compounds Using Diazo Esters as Nucleophiles: Chiral Lewis Base Catalysis.

Published in:

Angewandte Chemie, 2013, v. 125, n. 24, p. 6408, doi. 10.1002/ange.201301509

By:

Mao, Haibin;
Lin, Aijun;
Shi, Yan;
Mao, Zhijie;
Zhu, Xuebin;
Li, Weipeng;
Hu, Hongwen;
Cheng, Yixiang;
Zhu, Chengjian

Publication type:

Article

Preparation of ordered macroporous molecularly imprinted polymers and their applications in purifying cinchona alkaloids from cinchona extract.

Published in:

Polymer International, 2021, v. 70, n. 9, p. 1344, doi. 10.1002/pi.6205

By:

Zhang, Zhi‐Yuan;
Rui, Li‐Li;
Lin, Ya‐Li;
Zhang, Hui‐Dan;
Ou, Ji‐Ming;
He, Jian‐Feng;
Wu, Quan‐Zhou

Publication type:

Article

High-performance liquid chromatographic separation of unusual β-amino acid enantiomers in different chromatographic modes on Cinchona alkaloid-based zwitterionic chiral stationary phases.

Published in:

Amino Acids, 2015, v. 47, n. 11, p. 2279, doi. 10.1007/s00726-015-2006-1

By:

Ilisz, István;
Grecsó, Nóra;
Papoušek, Roman;
Pataj, Zoltán;
Barták, Petr;
Lázár, László;
Fülöp, Ferenc;
Lindner, Wolfgang;
Péter, Antal

Publication type:

Article

Site‐Selective Synthetic Modifications of the Cinchona Alkaloids.

Published in:

Asian Journal of Organic Chemistry, 2024, v. 13, n. 12, p. 1, doi. 10.1002/ajoc.202400397

By:

Player, Finlay P.;
Foley, Daniel J.

Publication type:

Article

Chiral Modification of Ferrite Nanoparticles for Oxidative Kinetic Resolution of Benzoins.

Published in:

Asian Journal of Organic Chemistry, 2023, v. 12, n. 8, p. 1, doi. 10.1002/ajoc.202300325

By:

Gupta, Pranshu K.;
Kumar, Neeraj;
Majumder, Abir B.;
Pandey, Manisha;
Goverdhan R. P, Vasu;
Ranganath, Kalluri V. S.

Publication type:

Article

Asymmetric Construction of All‐Carbon Quaternary Stereocenters via Organocatalytic α‐Hydroxymethylation of Malonic Diesters Using Aqueous Formaldehyde.

Published in:

Asian Journal of Organic Chemistry, 2022, v. 11, n. 8, p. 1, doi. 10.1002/ajoc.202200101

By:

Kanemitsu, Takuya;
Ozasa, Eisuke;
Murase, Yuria;
Sakaue, Susumu;
Miyazaki, Michiko;
Nagata, Kazuhiro;
Itoh, Takashi

Publication type:

Article

Cinchona Derivatives as Bifunctional H‐bonding Organocatalysts in Asymmetric Vinylogous Conjugate Addition Reactions.

Published in:

Asian Journal of Organic Chemistry, 2022, v. 11, n. 2, p. 1, doi. 10.1002/ajoc.202100053

By:

Joshi, Harshit;
Singh, Vinod K.

Publication type:

Article

Organocatalytic Enantioselective Michael Addition of Pyrazol‐5‐ones to β‐Silylmethylene Malonates: Synthesis of Chiral Organosilanes Under Metal‐ free Conditions.

Published in:

Asian Journal of Organic Chemistry, 2021, v. 10, n. 5, p. 1173, doi. 10.1002/ajoc.202100120

By:

Chowdhury, Raghunath;
Dubey, Akhil K.;
Ghosh, Sunil K.

Publication type:

Article

Bifunctional Cinchona Alkaloid Catalyzed Vinylogous Michael Reaction of 3–Alkylideneoxindole with 4‐Oxo‐enoates: A Route to Chiral γ‐Keto Alkylideneoxindole Esters.

Published in:

Asian Journal of Organic Chemistry, 2020, v. 9, n. 10, p. 1576, doi. 10.1002/ajoc.202000227

By:

Kumar, Rajesh;
Jaiswal, Manish K.;
Singh, Ravi P.

Publication type:

Article

Asymmetric Amination of 3-(2-Oxoindolin-3-ylidene)butanoates Catalyzed by a Cinchona-Derived Alkaloid.

Published in:

Asian Journal of Organic Chemistry, 2015, v. 4, n. 10, p. 1044, doi. 10.1002/ajoc.201500299

By:

ZhENg, ChEN;
ChEN, WEN ‐ Xue;
ChEN, FEN ‐ Er

Publication type:

Article

Organocatalytic Enantioselective Friedel-Crafts Reaction of 1-Naphthols with Isatins and an Unexpected Spontaneous Dehydration Process.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 480, doi. 10.1002/ajoc.201300170

By:

Wu, Deyan;
Zhang, XuwEN;
Xu, Yong;
Xue, Yingfei;
Li, Jian;
Wang, Wei;
Zhu, Jin

Publication type:

Article

Organocatalytic Enantio- and Diastereoselective Assembly of Thiazolidine Scaffolds by Formal [3+2] Annulation.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 387, doi. 10.1002/ajoc.201400025

By:

Qian, Hui;
Sun, Jianwei

Publication type:

Article

Asymmetric Synthesis of Efavirenz via Organocatalyzed Enantioselective Trifluoromethylation.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 449, doi. 10.1002/ajoc.201402016

By:

Okusu, Satoshi;
Kawai, Hiroyuki;
Yasuda, Yoshimasa;
Sugita, Yutaka;
Kitayama, Takashi;
Tokunaga, Etsuko;
Shibata, Norio

Publication type:

Article

Cover Picture: Selective Bromination of sp3 CH Bonds by Organophotoredox Catalysis (Asian J. Org. Chem. 4/2014).

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 317, doi. 10.1002/ajoc.201490006

By:

Kee, Choon Wee;
Chan, Ke Min;
Wong, Ming Wah;
Tan, Choon ‐ Hong

Publication type:

Article

Stereoselective Addition of 1,3-Diketones to β-Nitroacrylates Catalyzed by Chiral Metal-Free Bifunctional Catalysts.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 416, doi. 10.1002/ajoc.201300246

By:

Massolo, Elisabetta;
BENaglia, Maurizio;
Palmieri, Alessandro;
CelENtano, Giuseppe

Publication type:

Article

Cinchona Alkaloids as Organocatalysts in Enantioselective Halofunctionalization of Alkenes and Alkynes.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 366, doi. 10.1002/ajoc.201400030

By:

ZhENg, Suqing;
SchiENebeck, Casi M.;
Zhang, Wei;
Wang, Hao ‐ Yuan;
Tang, Weiping

Publication type:

Article

Efficient base-free asymmetric one-pot synthesis of spiro[indoline-3,3′-pyrrolizin]-2-one derivatives catalyzed by chiral organocatalyst.

Published in:

Research on Chemical Intermediates, 2021, v. 47, n. 3, p. 895, doi. 10.1007/s11164-020-04303-8

By:

Chithiraikumar, Chinnadurai;
Ponmuthu, Kottala Vijaya;
Harikrishnan, Muniyasamy;
Malini, Nelson;
Sepperumal, Murugesan;
Siva, Ayyanar

Publication type:

Article

Production of l-menthyl acetate through kinetic resolution by Candida cylindracea lipase: effects of alkaloids as additives.

Published in:

Research on Chemical Intermediates, 2018, v. 44, n. 11, p. 6847, doi. 10.1007/s11164-018-3525-7

By:

Belkacemi, Fatima Zohra;
Merabet-Khelassi, Mounia;
Aribi-Zouioueche, Louisa;
Riant, Olivier

Publication type:

Article

Effect of Methyl-substitution of the Quinoline Ring of Cinchona Alkaloids on the Performance as a Modifier for the Enantioselective Hydrogenation of (E)-2,3-di(4-methoxyphenyl)propenoic Acid Over Pd/C: Kinetic Analysis.

Published in:

Catalysis Letters, 2021, v. 151, n. 3, p. 863, doi. 10.1007/s10562-020-03351-4

By:

Nakatsuji, Makoto;
Kubota, Takeshi;
Fujita, Morifumi;
Okamoto, Yasuaki;
Sugimura, Takashi

Publication type:

Article

Heterogeneous Enantioselective Hydrogenation of Aromatic Ketones Catalyzed by Rh Nanoparticles Immobilized in Ionic Liquid.

Published in:

Catalysis Letters, 2019, v. 149, n. 7, p. 1975, doi. 10.1007/s10562-019-02768-w

By:

Jiang, He-yan;
Cheng, Hong-mei;
Bian, Feng-xia

Publication type:

Article

Effect of Microwave Irradiation on the Catalytic Activity of Palladium Supported Catalysts in the One-Step Isomerisation of Cinchona Alkaloids to Δ-Isobases.

Published in:

Catalysis Letters, 2017, v. 147, n. 11, p. 2835, doi. 10.1007/s10562-017-2169-3

By:

Lipińska, Teodozja;
Borowska, Dominika;
Swędra, Natalia;
Trochim, Katarzyna

Publication type:

Article

Catalytic Performance of Silica Supported Cinchona Alkaloids as Heterogeneous Catalysts for Asymmetric Michael Reaction.

Published in:

Catalysis Letters, 2014, v. 144, n. 10, p. 1681, doi. 10.1007/s10562-014-1322-5

By:

Zhao, Wenshan;
Zhang, Yanli;
Qu, Chengke;
Zhang, Lei;
Wang, Jing;
Cui, Yuanchen

Publication type:

Article

Carboxymethylcellulose Supported Cinchonine as a Recyclable Catalyst for Asymmetric Michael Reaction.

Published in:

Catalysis Letters, 2012, v. 142, n. 11, p. 1405, doi. 10.1007/s10562-012-0915-0

By:

Yang, Lili;
Zhou, Dapeng;
Qu, Chengke;
Cui, Yuanchen

Publication type:

Article

Heterogeneous Enantioselective Hydrogenation in a Continuous-flow Fixed-bed Reactor System: Hydrogenation of Activated Ketones and Their Binary Mixtures on Pt-Alumina-Cinchona Alkaloid Catalysts.

Published in:

Catalysis Letters, 2012, v. 142, n. 7, p. 889, doi. 10.1007/s10562-012-0846-9

By:

Szőllősi, György;
Makra, Zsolt;
Fekete, Mónika;
Fülöp, Ferenc;
Bartók, Mihály

Publication type:

Article

Pt-doped Ru nanoparticles loaded on 'black gold' plasmonic nanoreactors as air stable reduction catalysts.

Published in:

Nature Communications, 2024, v. 15, n. 1, p. 1, doi. 10.1038/s41467-024-44954-4

By:

Sharma, Gunjan;
Verma, Rishi;
Masuda, Shinya;
Badawy, Khaled Mohamed;
Singh, Nirpendra;
Tsukuda, Tatsuya;
Polshettiwar, Vivek

Publication type:

Article

Unidirectional rotation of micromotors on water powered by pH-controlled disassembly of chiral molecular crystals.

Published in:

Nature Communications, 2023, v. 14, n. 1, p. 1, doi. 10.1038/s41467-023-38308-9

By:

Carmeli, Itai;
Bounioux, Celine M.;
Mickel, Philip;
Richardson, Mark B.;
Templeman, Yael;
Scofield, Joel M. P.;
Qiao, Greg G.;
Rosen, Brian Ashley;
Yusupov, Yelena;
Meshi, Louisa;
Voelcker, Nicolas H.;
Diéguez, Oswaldo;
Miloh, Touvia;
Král, Petr;
Cohen, Hagai;
Richter, Shachar E.

Publication type:

Article

Highly.

Published in:

Journal of Heterocyclic Chemistry, 2013, v. 50, n. 5, p. 1078, doi. 10.1002/jhet.1512

By:

Xiong, Fei;
Xiong, Fang ‐ Jun;
Chen, Wen ‐ Xue;
Jia, Hui ‐ Qing;
Chen, Fen ‐ Er

Publication type:

Article

N‐Fluoro Ammonium Salts of Cinchona Alkaloids in Enantioselective Electrophilic Fluorination.

Published in:

Chemical Record, 2023, v. 23, n. 9, p. 1, doi. 10.1002/tcr.202300096

By:

Shibata, Norio;
Cahard, Dominique

Publication type:

Article

(Thio)urea Containing Chiral Ammonium Salt Catalysts.

Published in:

Chemical Record, 2023, v. 23, n. 7, p. 1, doi. 10.1002/tcr.202200198

By:

Waser, Mario;
Winter, Michael;
Mairhofer, Christopher

Publication type:

Article

From Three‐ to Six‐Membered Heterocycles Bearing a Quaternary Stereocenter: an Asymmetric Organocatalytic Approach.

Published in:

Chemical Record, 2023, v. 23, n. 5, p. 1, doi. 10.1002/tcr.202300066

By:

Lattanzi, Alessandra

Publication type:

Article

Huisgen 3 + n Dipolar Cycloaddition Reactions: An Accessible and Useful Tool in Modern Organic and Heterocycle Synthesis.

Published in:

Molecules, 2023, v. 28, n. 15, p. 5692, doi. 10.3390/molecules28155692

By:

Mangalagiu, Ionel I.

Publication type:

Article

Construction of N-Doped Carbon-Modified Ni/SiO 2 Catalyst Promoting Cinnamaldehyde Selective Hydrogenation.

Published in:

Molecules, 2023, v. 28, n. 10, p. 4136, doi. 10.3390/molecules28104136

By:

Ren, Yongwang;
Xu, Huizhong;
Han, Beibei;
Xu, Jing

Publication type:

Article

Enantioseparation of 3-Hydroxycarboxylic Acids via Diastereomeric Salt Formation by 2-Amino-1,2-diphenylethanol (ADPE) and Cinchonidine.

Published in:

Molecules, 2023, v. 28, n. 1, p. 114, doi. 10.3390/molecules28010114

By:

Chandrasekaran, Srinivas;
Tambo, Masaki;
Yamazaki, Yuta;
Muramatsu, Tatsuro;
Kanda, Yusuke;
Hirose, Takuji;
Kodama, Koichi

Publication type:

Article

Efficacy of Selenourea Organocatalysts in Asymmetric Michael Reactions under Standard and Solvent-Free Conditions.

Published in:

Molecules, 2021, v. 26, n. 23, p. 7303, doi. 10.3390/molecules26237303

By:

Zielińska-Błajet, Mariola;
Mała, Żaneta A.;
Kowalczyk, Rafał

Publication type:

Article

Synthesis and Applications of Carbohydrate-Based Organocatalysts.

Published in:

Molecules, 2021, v. 26, n. 23, p. 7291, doi. 10.3390/molecules26237291

By:

Wojaczyńska, Elżbieta;
Steppeler, Franz;
Iwan, Dominika;
Scherrmann, Marie-Christine;
Marra, Alberto

Publication type:

Article

New Members of the Cinchona Alkaloids Family: Assembly of the Triazole Heterocycle at the 6′ Position.

Published in:

Molecules, 2021, v. 26, n. 11, p. 3357, doi. 10.3390/molecules26113357

By:

Maftei, Catalin Vasile;
Franz, Martin Heiko;
Kleeberg, Christian;
Neda, Ion

Publication type:

Article

COVID-19, Chloroquine Repurposing, and Cardiac Safety Concern: Chirality Might Help.

Published in:

Molecules, 2020, v. 25, n. 8, p. 1834, doi. 10.3390/molecules25081834

By:

Lentini, Giovanni;
Cavalluzzi, Maria Maddalena;
Habtemariam, Solomon;
Muñoz-Torrero, Diego

Publication type:

Article

Hybrids of Cinchona Alkaloids and Bile Acids as Antiparasitic Agents Against Trypanosoma cruzi.

Published in:

Molecules, 2019, v. 24, n. 17, p. 3168, doi. 10.3390/molecules24173168

By:

Musikant, Daniel;
Leverrier, Aurélie;
Bernal, Diana;
Ferri, Gabriel;
Palermo, Jorge A.;
Edreira, Martin M.

Publication type:

Article

Amine-Catalyzed Decarboxylative Aldol Reaction of β-Ketocarboxylic Acids with Trifluoropyruvates.

Published in:

Molecules, 2019, v. 24, n. 15, p. 2773, doi. 10.3390/molecules24152773

By:

Kawanishi, Ryouta;
Hattori, Shinya;
Iwasa, Seiji;
Shibatomi, Kazutaka;
Shibata, Norio

Publication type:

Article

Diastereodivergent and Enantioselective [4+2] Annulations of γ-Butenolides with Cyclic 1-Azadienes.

Published in:

Molecules, 2015, v. 20, n. 8, p. 13642, doi. 10.3390/molecules200813642

By:

Chao Li;
Kun Jiang;
Ying-Chun Chen

Publication type:

Article

Comparison of the Separation Performances of Cinchona Alkaloid-Based Zwitterionic Stationary Phases in the Enantioseparation of β2- and β3-Amino Acids.

Published in:

Molecules, 2015, v. 20, n. 1, p. 70, doi. 10.3390/molecules20010070

By:

Ilisz, István;
Grecsó, Nóra;
Misicka, Aleksandra;
Tymecka, Dagmara;
Lázár, László;
Lindner, Wolfgang;
Péter, Antal

Publication type:

Article

Synthesis of Chiral Chalcone Derivatives Catalyzed by the Chiral Cinchona Alkaloid Squaramide.

Published in:

Molecules, 2014, v. 19, n. 12, p. 19491, doi. 10.3390/molecules191219491

By:

Dandan Xie;
Ying Xie;
Yan Ding;
Jian Wu;
Deyu Hu

Publication type:

Article

Cinchona Alkaloid Derivative-Catalyzed Enantioselective Synthesis via a Mannich-Type Reaction and Antifungal Activity of β-Amino Esters Bearing Benzoheterocycle Moieties.

Published in:

Molecules, 2014, v. 19, n. 4, p. 3955, doi. 10.3390/molecules19043955

By:

Han Xiao;
Fang Wu;
Li Shi;
Zhiwei Chen;
Shihu Su;
Chenghao Tang;
Hongtao Wang;
Zhining Li;
Meichuan Li;
Qingcai Shi

Publication type:

Article

One-Pot Synthesis of Novel Chiral β-Amino Acid Derivatives by Enantioselective Mannich Reactions Catalyzed by Squaramide Cinchona Alkaloids.

Published in:

Molecules, 2013, v. 18, n. 6, p. 6142, doi. 10.3390/molecules18066142

By:

Kankan Zhang;
Xueping Liang;
Ming He;
Jian Wu;
Yuping Zhang;
Wei Xue;
Linhong Jin;
Song Yang;
Deyu Hu

Publication type:

Article

Synthesis of Main-Chain Chiral Quaternary Ammonium Polymers for Asymmetric Catalysis Using Quaternization Polymerization.

Published in:

Molecules, 2012, v. 17, n. 6, p. 1, doi. 10.3390/molecules17067569

By:

Haraguchi, Naoki;
Ahamed, Parbhej;
Parvez, Md. Masud;
Itsuno, Shinichi

Publication type:

Article

1,3-dipolar cycloaddition of diazomethane to quinoid derivatives of pyrido[1,2- a]benzimidazole.

Published in:

Russian Journal of Organic Chemistry, 2017, v. 53, n. 2, p. 231, doi. 10.1134/S1070428017020154

By:

Slabko, O.;
Ageenko, N.;
Denisenko, V.;
Kaminskii, V.

Publication type:

Article