K
Keiji Maruoka
Researcher at Kyoto University
Publications - 907
Citations - 24733
Keiji Maruoka is an academic researcher from Kyoto University. The author has contributed to research in topics: Catalysis & Enantioselective synthesis. The author has an hindex of 76, co-authored 885 publications receiving 22433 citations. Previous affiliations of Keiji Maruoka include Sumitomo Chemical & Nagasaki University.
Papers
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Journal ArticleDOI
Organoborane-catalyzed hydroalumination of terminal allenes
TL;DR: In this paper, an organoborane-catalyzed hydroalumination of terminal allenes with dichloroaluminum hydride gives rise to the corresponding allylaluminum compounds under mild conditions with high regioselectivity.
Patent
METHOD FOR PRODUCING β-HYDROXYAMINO ACID DERIVATIVE IN PRESENCE OF OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AS PHASE TRANSFER CATALYST
TL;DR: In this article, a method for producing β-hydroxyamino acid or its derivative important as a chiral building block in diastereo selectivity, in high enantio selectivity and in a high yield was proposed.
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Metal-Free Enantioselective Hydroxyamination of Aldehydes with Nitrosocarbonyl Compounds Catalyzed by an Axially Chiral Amine.
TL;DR: In this article, the first example of a highly regio-and enantioselective hydroxyamination of aldehydes with in situ generated nitrosocarbonyl compounds from hydroxamic acid derivatives is realized by using TEMPO and BPO as the oxidants in the presence of a binaphthyl-modified amine catalyst.
Journal ArticleDOI
Design and synthesis of a biphenyl-based chiral amino sulfonamide with high catalytic performance in Mannich reactions
TL;DR: A biphenyl-based amino sulfonamide was designed to improve the intrinsic low catalytic activity of amine organocatalysts as mentioned in this paper, which promoted the Mannich reaction in a highly enantioselective fashion and achieved a remarkable catalyst turnover number.
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Catalytic Asymmetric Synthesis of a Nitrogen Analogue of Dialkyl Tartrate by Direct Mannich Reaction under Phase-Transfer Conditions.
TL;DR: In this article, a phase-transfer-catalyzed direct Mannich reaction of glycinate Schiff base 3 with α-imino ester 4 has been accomplished with high enantioselectivity by the utilization of N-spiro C2-symmetric chiral quaternary ammonium bromide 2 as a catalyst.