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
More filters
Journal ArticleDOI
Asymmetric 1,3-dipolar cycloadditions of nitrones and methacrolein catalyzed by chiral bis-titanium lewis acid: a dramatic effect of N-substituent on nitrone.
TL;DR: Highly stereoselective 1,3-dipolar cycloadditions of methacrolein and nitrones could be realized by the use of bis-titanium chiral Lewis acid catalyst by introducing bulky N-substituent on nitrone to attenuate the undesired Lewis acid-nitrone complexation.
Journal ArticleDOI
Zr(OBut)4 As an effective promoter for the Meerwein–Ponndorf–Verley alkynylation and cyanation of aldehydes: development of new asymmetric cyanohydrin synthesis
Takashi Ooi,Takashi Ooi,Tomoya Miura,Tomoya Miura,Keisuke Takaya,Keisuke Takaya,Hayato Ichikawa,Hayato Ichikawa,Keiji Maruoka,Keiji Maruoka +9 more
TL;DR: Zr(OBut)4 can serve as an effective promoter for the Meerwein-Ponndorf-Verley alkynylation of aldehydes and also facilitate MPV type cyanide transfer to aldehyde carbonyls with commercially available acetone cyanohydrin under mild conditions as mentioned in this paper.
Journal ArticleDOI
Stereoselective Synthesis of α-Alkyl-β-keto Imides via Asymmetric Redox C-C Bond Formation between α-Alkyl-α-diazocarbonyl Compounds and Aldehydes
TL;DR: Asymmetric redox C-C bond formation between alpha-alkyl-alpha-diazocarbonyl compounds and aldehydes was developed as a practical and general method for the construction of alpha-alksyl-beta-keto imides having a chiral nonracemic tertiary stereogenic center.
Journal ArticleDOI
Synthesis of a biphenyl-based axially chiral amino acid as a highly efficient catalyst for the direct asymmetric aldol reaction
TL;DR: A biphenyl-based axially chiral amino acid ( S- 2) has been designed and synthesized and found to be a more efficient catalyst than ( S )- 1 in the direct asymmetric aldol reaction of acetone with aldehydes.
Journal ArticleDOI
Acid‐Catalyzed In Situ Generation of Less Accessible or Unprecedented N‐Boc Imines from N‐Boc Aminals
TL;DR: Slow generation and rapid consumption of reactive imines would avoid their accumulation and decomposition, and development of the general method to generate reactive N-Boc imines 1 is of great significance in synthetic chemistry.