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Author

Kei Maekawa

Observed name: 前川, 圭
Institution: Hokkaido University
OpenAlex ID: A5111608487
Electron transfer-initiated photocyclization of substituted N-acetyl-α-dehydro(1-naphthyl)alanines to 1,2-dihydrobenzo[f]quinolinone derivatives: scope and limitations
2001 · Kei Maekawa, Tetsutaro Igarashi, et al. · Tetrahedron · 33
Synthesis of Biaryls Having a Piperidylmethyl Group Based on Space Integration of Lithiation, Borylation, and Suzuki–Miyaura Coupling
2019 · Yusuke Takahashi, Yosuke Ashikari, et al. · European Journal of Organic Chemistry · 26
An Efficient Transformation of Substituted N-Acyl-a-dehydro(1-naphthyl)alanines into 1,2-Dihydrobenzo[f]quinolinone Derivatives via Photoinduced Intramolecular Electron Transfer
2002 · Tadamitsu Sakurai, Toyohisa Motohashi, et al. · Heterocycles · 21
Electron transfer-initiated asymmetric photocyclization of chiral auxiliary-substituted N-acyl-α-dehydro(1-naphthyl)alaninamides to the corresponding 3,4-dihydrobenzo[f]quinolinone derivatives
2005 · Kei Maekawa, Kanji Kubo, et al. · Tetrahedron · 20
Highly selective conversion of N-aroyl-α-dehydronaphthylalaninamides into 3,4-dihydrobenzoquinolinone derivatives via photoinduced intermolecular electron transfer
2004 · Kei Maekawa, Ayana Shinozuka, et al. · Tetrahedron · 20
Preferential formation of cis-4,5-dihydrooxazole derivatives via photoinduced electron transfer-initiated cyclization of N-acyl-α-dehydroarylalanine alkyl esters
2007 · Kei Maekawa, Norikazu Hishikawa, et al. · Tetrahedron · 19
Selective and efficient transformation of N-(4-substituted benzoyl)-α-dehydroarylalanine alkyl esters into 4,5-dihydrooxazole derivatives via photoinduced electron transfer
2004 · Kei Maekawa, Takahiro Sasaki, et al. · Tetrahedron Letters · 19
meta-Substituent Effects on the Photocyclization of Aryl-substituted N-Acyl-α-dehydroalanine Derivatives
2003 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 19
Asymmetric transformation of chiral auxiliary-substituted N-acyl-α-dehydro(1-naphthyl)alanines into 3,4-dihydrobenzo[f]quinolinone derivatives via photoinduced electron transfer
2003 · Kei Maekawa, Kanji Kubo, et al. · Tetrahedron · 18
Photoinduced Electron Transfer-Initiated Enantioselective Cyclization of N-Benzoyl-α-dehydroarylalanine tert-Butyl Esters in the Presence of Chiral Amine
2007 · Tadamitsu Sakurai, Haruo Watanabe, et al. · Heterocycles · 16
A New Route to Papaverine Analogs via Photocyclization of Substituted N-Acyl-α-dehydrophenylalaninamides
2003 · Tadamitsu Sakurai, Hideki Hoshina, et al. · Heterocycles · 16
Stille, Heck, and Sonogashira coupling and hydrogenation catalyzed by porous-silica-gel-supported palladium in batch and flow
2021 · Yosuke Ashikari, Kei Maekawa, et al. · Green Processing and Synthesis · 12
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Flow grams-per-hour production enabled by hierarchical bimodal porous silica gel supported palladium column reactor having low pressure drop
2020 · Yosuke Ashikari, Kei Maekawa, et al. · Catalysis Today · 11
Electron Transfer-initiated and Highly Selective Photocyclization of N-Acyl-α-dehydroarylalaninamides to 3,4-Dihydroquinolinone Derivatives
2005 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 11
A novel route to 2-imidazolin-5-one derivatives via oxidative cyclization of aryl-substituted (Z)-N-acetyl-α-dehydroalanines having a dialkylamino group
2004 · Atsushi Kawasaki, Kei Maekawa, et al. · Tetrahedron · 11
Asymmetric Photocyclizations of Chiral Auxiliary-substituted N-Acyl-a-dehydro- amino Acids into 1,2-Dihydrobenzo- quinolinone Derivatives
2002 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 11
Highly Productive Flow Synthesis for Lithiation, Borylation, and/or Suzuki Coupling Reaction
2024 · Hiroki Soutome, Kei Maekawa, et al. · Organic Process Research & Development · 10
Electron Transfer-initiated Photocyclization of Substituted a-Dehydro(1-naphthyl)alanines
2000 · Tadamitsu Sakurai, Yoshiko Morioka, et al. · Heterocycles · 10
Photoinduced electron transfer-initiated asymmetric cyclization of N-benzoyl-α-dehydronaphthylalanine alkyl esters carrying chiral and bulky auxiliaries
2007 · Yuji Sasaki, Kei Maekawa, et al. · Tetrahedron Letters · 9
A Novel Ring-opening Reaction of (Z)-2-Methyl-4-arylmethylene-5(4H)-oxazolone Derivatives with Acylhydrazines
2004 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 8
Oxidative cyclization of aryl-substituted (Z)-N-acetyl-α-dehydroalanines having a dialkylamino group, in the presence of dioxygen
2002 · Kohji Oshimi, Kanji Kubo, et al. · Tetrahedron Letters · 7
Efficient Formation of a Triazole Ring via Novel Ring-Opening Reaction of (Z)-2-Methyl-4-arylmethylene-5(4H)-oxazolones with Hydrazides
2008 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 5
Asymmetric Photocyclization Reactions of N-Acetyl-α-dehydro(1-naphthyl)alaninamides in the Presence of Chiral Amine
2011 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 4
Novel Photoinduced Electorn Transfer-Initiated Cyclization of 1,2,4-Triazole-Substituted α-Dehydronaphthylalaninamides in the Presence of Triethylamine
2009 · Tadamitsu Sakurai, Kei Maekawa, et al. · Heterocycles · 3
A Convenient Synthesis of Papaverine Analogs via Photocyclization of N-Acyl-a-dehydroarylalaninamide Derivatives
2006 · Tadamitsu Sakurai, Hideki Hoshina, et al. · Heterocycles · 2
Works count: 39
Citation count: 341
H-index: 12
I10-index: 18
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