Search Results - "Kanta De, Chandra"

Homologation of the Fischer Indolization: A Quinoline Synthesis via Homo‐Diaza‐Cope Rearrangement by Gerosa, Gabriela Guillermina, Schwengers, Sebastian Armin, Maji, Rajat, De, Chandra Kanta, List, Benjamin

“…We disclose a new Brønsted acid promoted quinoline synthesis, proceeding via homo‐diaza‐Cope rearrangement of N‐aryl‐N′‐cyclopropyl hydrazines. Our strategy…”
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Strong and Confined Acids Control Five Stereogenic Centers in Catalytic Asymmetric Diels–Alder Reactions of Cyclohexadienones with Cyclopentadiene by Ghosh, Santanu, Das, Sayantani, De, Chandra Kanta, Yepes, Diana, Neese, Frank, Bistoni, Giovanni, Leutzsch, Markus, List, Benjamin

“…We describe a highly enantioselective Diels–Alder reaction of cross‐conjugated cyclohexadienones with cyclopentadiene, in which five stereocenters are…”
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Strong and Confined Acids Enable a Catalytic Asymmetric Nazarov Cyclization of Simple Divinyl Ketones by Ouyang, Jie, Kennemur, Jennifer L, De, Chandra Kanta, Farès, Christophe, List, Benjamin

“…We report a catalytic asymmetric Nazarov cyclization of simple, acylic, alkyl-substituted divinyl ketones using our recently disclosed strong and confined…”
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Approaching sub-ppm-level asymmetric organocatalysis of a highly challenging and scalable carbon–carbon bond forming reaction by Bae, Han Yong, Höfler, Denis, Kaib, Philip S. J., Kasaplar, Pinar, De, Chandra Kanta, Döhring, Arno, Lee, Sunggi, Kaupmees, Karl, Leito, Ivo, List, Benjamin

“…The chemical synthesis of organic molecules involves, at its very essence, the creation of carbon–carbon bonds. In this context, the aldol reaction is among…”
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Catalytic enantiocontrol over a non-classical carbocation by Properzi, Roberta, Kaib, Philip S. J., Leutzsch, Markus, Pupo, Gabriele, Mitra, Raja, De, Chandra Kanta, Song, Lijuan, Schreiner, Peter R., List, Benjamin

“…Carbocations can be categorized into classical carbenium ions and non-classical carbonium ions. These intermediates are ubiquitous in reactions of both…”
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The Smelling Principle of Vetiver Oil, Unveiled by Chemical Synthesis by Ouyang, Jie, Bae, Hanyong, Jordi, Samuel, Dao, Quang Minh, Dossenbach, Sandro, Dehn, Stefanie, Lingnau, Julia B., Kanta De, Chandra, Kraft, Philip, List, Benjamin

“…Vetiver oil, produced on a multiton‐scale from the roots of vetiver grass, is one of the finest and most popular perfumery materials, appearing in over a third…”
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A dual-catalysis approach to the kinetic resolution of 1,2-diaryl-1,2-diaminoethanes by Min, Chang, Mittal, Nisha, De, Chandra Kanta, Seidel, Daniel

“…The kinetic resolution of racemic C(2)-symmetric 1,2-diaryl-1,2-diaminoethanes was accomplished for the first time through application of a dual-catalysis…”
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Asymmetric counteranion-directed photoredox catalysis by Das, Sayantani, Zhu, Chendan, Demirbas, Derya, Bill, Eckhard, De, Chandra Kanta, List, Benjamin

“…Photoredox catalysis enables distinctive and broadly applicable chemical reactions, but controlling their selectivity has proven to be difficult. The pursuit…”
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Catalytic Asymmetric Dearomatizing Redox Cross Coupling of Ketones with Aryl Hydrazines Giving 1,4-Diketones by Huang, Shenlin, Kötzner, Lisa, De, Chandra Kanta, List, Benjamin

“…An asymmetric Brønsted acid catalyzed dearomatizing redox cross coupling reaction has been realized, in which aryl hydrazines react with ketones to deliver…”
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Catalytic Enantioselective Desymmetrization of meso-Diamines: A Dual Small-Molecule Catalysis Approach by De, Chandra Kanta, Seidel, Daniel

“…The desymmetrization of meso-diamines was accomplished via enantioselective monobenzoylation facilitated by the cooperative action of two small-molecule…”
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Organocatalytic stereoselective cyanosilylation of small ketones by Zhou, Hui, Zhou, Yu, Bae, Han Yong, Leutzsch, Markus, Li, Yihang, De, Chandra Kanta, Cheng, Gui-Juan, List, Benjamin

“…Enzymatic stereoselectivity has typically been unrivalled by most chemical catalysts, especially in the conversion of small substrates. According to the…”
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A Dual-Catalysis Approach to the Asymmetric Steglich Rearrangement and Catalytic Enantioselective Addition of O-Acylated Azlactones to Isoquinolines by De, Chandra Kanta, Mittal, Nisha, Seidel, Daniel

“…A dual-catalysis approach, namely the combination of an achiral nucleophilic catalyst and a chiral anion-binding catalyst, was applied to the Steglich…”
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Taming secondary benzylic cations in catalytic asymmetric SN1 reactions by Singh, Vikas Kumar, Zhu, Chendan, Chandra Kanta De, Leutzsch, Markus, Baldinelli, Lorenzo, Mitra, Raja, Bistoni, Giovanni, List, Benjamin

“…Editor’s summaryNucleophilic substitution reactions are widely used to form bonds to carbon. In many cases, the reactions occur with precisely predictable…”
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Merging Nucleophilic and Hydrogen Bonding Catalysis: An Anion Binding Approach to the Kinetic Resolution of Amines by De, Chandra Kanta, Klauber, Eric G, Seidel, Daniel

“…A new concept for asymmetric nucleophilic catalysis is presented. Acyl pyridinium salts derived from 4-(dimethylamino)pyridine (DMAP) and benzoic anhydride are…”
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Nitrated Confined Imidodiphosphates Enable a Catalytic Asymmetric Oxa-Pictet–Spengler Reaction by Das, Sayantani, Liu, Luping, Zheng, Yiying, Alachraf, M. Wasim, Thiel, Walter, De, Chandra Kanta, List, Benjamin

“…The development of a highly enantioselective catalytic oxa-Pictet–Spengler reaction has proven a great challenge for chemical synthesis. We now report the…”
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Merging Nucleophilic and Hydrogen Bonding Catalysis: An Anion Binding Approach to the Kinetic Resolution of Propargylic Amines by Klauber, Eric G., De, Chandra Kanta, Shah, Tejas K., Seidel, Daniel

“…An efficient kinetic resolution of primary propargylic amines with s-factors of up to 56 is reported. The strategy is based on a dual catalytic approach,…”
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Asymmetric Catalysis of the Carbonyl-Amine Condensation: Kinetic Resolution of Primary Amines by Das, Sayantani, Majumdar, Nilanjana, De, Chandra Kanta, Kundu, Dipti Sankar, Döhring, Arno, Garczynski, Anika, List, Benjamin

“…A Brønsted acid catalyzed kinetic resolution of primary amines is described that is based on the condensation between an amine and a carbonyl compound…”
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Frontispiece: The Smelling Principle of Vetiver Oil, Unveiled by Chemical Synthesis by Ouyang, Jie, Bae, Hanyong, Jordi, Samuel, Dao, Quang Minh, Dossenbach, Sandro, Dehn, Stefanie, Lingnau, Julia B., Kanta De, Chandra, Kraft, Philip, List, Benjamin

“…Fragrance Chemistry In their Communication on page 5666, Philip Kraft, Benjamin List et al. describe a concise stereoselective total synthesis of…”
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Harnessing the ambiphilicity of silyl nitronates in a catalytic asymmetric approach to aliphatic β3-amino acids by Das, Sayantani, Mitschke, Benjamin, De, Chandra Kanta, Harden, Ingolf, Bistoni, Giovanni, List, Benjamin

“…Nitronate anions, formally generated by α-deprotonating the corresponding nitroalkanes, are highly nucleophilic and versatile intermediates in many…”
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Starke und sterisch begrenzte Säuren kontrollieren fünf stereogene Zentren in der katalytischen asymmetrischen Diels‐Alder‐Reaktion von Cyclohexadienonen mit Cyclopentadien by Ghosh, Santanu, Das, Sayantani, De, Chandra Kanta, Yepes, Diana, Neese, Frank, Bistoni, Giovanni, Leutzsch, Markus, List, Benjamin

“…Wir stellen eine hochenantioselektiven Diels‐Alder‐Reaktion zwischen kreuzkonjugierten Cyclohexadienonen und Cyclopentadien vor, in der fünf Stereozentren…”
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