T
Tõnis Kanger
Researcher at Tallinn University of Technology
Publications - 146
Citations - 1953
Tõnis Kanger is an academic researcher from Tallinn University of Technology. The author has contributed to research in topics: Enantioselective synthesis & Organocatalysis. The author has an hindex of 24, co-authored 142 publications receiving 1751 citations. Previous affiliations of Tõnis Kanger include Tallinn University & Estonian Academy of Sciences.
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3,3‘-Bimorpholine Derivatives as a New Class of Organocatalysts for Asymmetric Michael Addition
TL;DR: New N-alkyl-3,3'-bimorpholine derivatives (iPBM) were revealed to be efficient organocatalysts for the asymmetric direct Michael addition of aldehydes to nitroolefins and a vinyl sulfone, with good to high levels of diastereo- and enantioselectivity.
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Enantioselective Henry Reaction Catalyzed by CuII Salt and Bipiperidine
TL;DR: A complex derived from the enantiomeric bipiperidine and copper(II) acetate hydrate is an efficient catalyst for theEnantioselective Henry reaction.
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Organocatalytic asymmetric synthesis of 3-chlorooxindoles bearing adjacent quaternary-tertiary centers.
TL;DR: This is the first example where 3-chloroxoindoles 1 have been used as nucleophiles in a highly stereoselective organocatalytic reaction.
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Asymmetric Baeyer-Villiger Oxidation of Cyclobutanones.
TL;DR: The asymmetric Baeyer-Villiger oxidation of racemic cyclobutanones 1, 2, and 3 under Sharpless oxidation conditions resulted in enantiomeric lactones 5 ee 34, 6 ee 53, 7 ee 75% and 8 40% ee respectively as mentioned in this paper.
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3-Chlorooxindoles: versatile starting materials for asymmetric organocatalytic synthesis of spirooxindoles
Artur Noole,Maksim Ošeka,Tõnis Pehk,Mario Öeren,Ivar Järving,Mark R. J. Elsegood,Andrei V. Malkov,Margus Lopp,Tõnis Kanger +8 more
TL;DR: 3-Chlorooxoindoles have emerged as versatile precursors in the synthesis of spirocyclopropyl oxindoles with high enantio- and diastereoselectivity under conditions of both iminium/enamine and H-bonding catalysis.