Výsledky vyhledávání - "Indrek Kalvet"

Direct α-alkylation of primary aliphatic amines enabled by CO2 and electrostatics

Autor: Franziska Schoenebeck, Indrek Kalvet, Juntao Ye, Tomislav Rovis

Publikováno v: Nature Chemistry. 10:1037-1041

Primary aliphatic amines are important building blocks in organic synthesis due to the presence of a synthetically versatile NH2 group. N-functionalization of primary amines is well established, but selective C-functionalization of unprotected primar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::570113702f226db919307731ef15644f
https://doi.org/10.1038/s41557-018-0085-9

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Divergent Reactivity of a Dinuclear (NHC)Nickel(I) Catalyst versus Nickel(0) Enables Chemoselective Trifluoromethylselenolation

Autor: Franziska Schoenebeck, Henry C. Fisher, Indrek Kalvet, Alexander B. Dürr, Khai Nghi Truong

Publikováno v: Angewandte Chemie (International Ed. in English)
Angewandte Chemie International Edition

We herein showcase the ability of NHC-derived dinuclear Ni(I)-Ni(I) complexes to override fundamental reactivity limits of mononuclear (NHC)Ni(0) catalysts in cross-coupling. This is demonstrated with the development of a chemoselective Ni(I) dimer-c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::997507fe85a8cddf7e9c1d2313b5fb9b
https://doi.org/10.1002/anie.201706423

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Rapid Room‐Temperature, Chemoselective C−C Coupling of Poly(pseudo)halogenated Arenes Enabled by Palladium(I) Catalysis in Air

Autor: Indrek Kalvet, Franziska Schoenebeck, Guillaume Magnin

Publikováno v: Angewandte Chemie International Edition. 56:1581-1585

While chemoselectivities in Pd0-catalyzed coupling reactions are frequently non-intuitive and a result of a complex interplay of ligand/catalyst, substrate, and reaction conditions, we herein report a general method based on PdI that allows for an a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccd510c9c8c2f984a6fe568aeacbd88b
https://doi.org/10.1002/anie.201609635

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Mild and selective base-free C–H arylation of heteroarenes

Autor: Franziska Schoenebeck, Timothy Noël, Nico Erdmann, Indrek Kalvet, Alexander V. Nyuchev, Hannes P. L. Gemoets, Volker Hessel

Publikováno v: Chemical science 8(2), 1046-1055 (2017). doi:10.1039/C6SC02595A
Chemical Science, 2017(2):8, 1046-1055. Royal Society of Chemistry

A mild and selective C–H arylation strategy for indoles, benzofurans and benzothiophenes is described. The arylation method engages aryldiazonium salts as arylating reagents in equimolar amounts. The protocol is operationally simple, base free, moi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::370cf1d1af949a97b4aa2f30fb4b2c0c
https://doi.org/10.1039/c6sc02595a

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NMR and DFT Study of the Copper(I)-Catalyzed Cycloaddition Reaction: H/D Scrambling of Alkynes and Variable Reaction Order of the Catalyst

Autor: Peeter Burk, Jaana Tammiku-Taul, Uno Mäeorg, Indrek Kalvet, Lauri Sikk, Kaido Tämm

Publikováno v: ChemCatChem. 8:1804-1808

Mechanism of an efficient and easily applicable catalytic system for the copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) reaction, consisting of phosphane-ligated CuI carboxylates and apolar/aprotic solvent was investigated by means of 1H NM

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34c13b88c2a1df49d2ca217891232bb6
https://doi.org/10.1002/cctc.201600176

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Lewis‐Säure‐unterstützte metallkatalysierte Kreuzkupplung: Alkylierung von Arylmethylethern unter C‐O‐Bindungsspaltung ohne β‐Hydrideliminierung

Autor: Matthias Leiendecker, Chien-Chi Hsiao, Magnus Rueping, Franziska Schoenebeck, Lin Guo, Xiangqian Liu, Indrek Kalvet

Publikováno v: Angewandte Chemie. 128:6198-6203

Diverse Arylmethylether konnen durch Trialkylaluminiumverbindungen mittels einer Alkylierung unter C-O-Bindungsspaltung in wertvolle Produkte uberfuhrt werden, wobei die bislang limitierenden β-Hydrideliminierungen vermieden werden. Basierend auf de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf01de6f7406d34a01c788cb89668188
https://doi.org/10.1002/ange.201510497

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Lewis Acid Assisted Nickel‐Catalyzed Cross‐Coupling of Aryl Methyl Ethers by C−O Bond‐Cleaving Alkylation: Prevention of Undesired β‐Hydride Elimination

Autor: Lin Guo, Magnus Rueping, Chien-Chi Hsiao, Franziska Schoenebeck, Xiangqian Liu, Matthias Leiendecker, Indrek Kalvet

Publikováno v: Angewandte Chemie International Edition. 55:6093-6098

In the presence of trialkylaluminum reagents, diverse aryl methyl ethers can be transformed into valuable products by C-O bond-cleaving alkylation, for the first time without the limiting β-hydride elimination. This new nickel-catalyzed dealkoxylati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b6bb5c0aae936ec48dd39981bb39983
https://doi.org/10.1002/anie.201510497

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