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OpenAlex is a bibliographic catalogue of scientific papers, authors and institutions accessible in open access mode, named after the Library of Alexandria. It's citation coverage is excellent and I hope you will find utility in this listing of citing articles!

If you click the article title, you'll navigate to the article, as listed in CrossRef. If you click the Open Access links, you'll navigate to the "best Open Access location". Clicking the citation count will open this listing for that article. Lastly at the bottom of the page, you'll find basic pagination options.

Requested Article:

Asymmetric synthesis of tetrasubstituted cyclic amines via aza-Henry reaction using cinchona alkaloid sulfonamide/zinc(ii) catalysts
Naoki Yasukawa, Ami Yamanoue, Tsunayoshi Takehara, et al.
Chemical Communications (2021) Vol. 58, Iss. 9, pp. 1318-1321
Closed Access | Times Cited: 16

Showing 16 citing articles:

Enantioselective Pictet–Spengler Reaction of Acyclic α-Ketoesters Using Chiral Imidazoline-Phosphoric Acid Catalysts
Shuichi Nakamura, Yoichiro Matsuda, Tsunayoshi Takehara, et al.
Organic Letters (2022) Vol. 24, Iss. 4, pp. 1072-1076
Closed Access | Times Cited: 38
Accessing unnatural α-amino acids with tetrasubstituted stereogenic centersviacatalytic enantioselective reactions of ketimine-type α-iminoesters/α-iminoamides
Naoki Yasukawa, Shuichi Nakamura
Chemical Communications (2023) Vol. 59, Iss. 54, pp. 8343-8374
Closed Access | Times Cited: 14
Catalytic asymmetric synthesis of 1,2-diamines
Francisco Foubelo, Carmén Nájera, María de Gracia Retamosa, et al.
Chemical Society Reviews (2024) Vol. 53, Iss. 15, pp. 7983-8085
Open Access | Times Cited: 4
Automatic monitoring and on-line chiral separation of chiral drug synthesis
Zhongmei Chi, Song‐Zhu Kure‐Chu, Jiali Gu, et al.
Journal of Chromatography A (2025) Vol. 1743, pp. 465699-465699
Closed Access
Enantioselective Reaction of N-Unprotected Activated Ketimines with Phosphine Oxides Catalyzed by Chiral Imidazoline-Phosphoric Acids
K. Ogura, Itsuki Isozumi, Tsunayoshi Takehara, et al.
Organic Letters (2022) Vol. 24, Iss. 43, pp. 8088-8092
Closed Access | Times Cited: 16
Organocatalytic Stereoselective Decarboxylative Addition of α‐Amido Malonic Acid Half Oxyesters to Isatins
Kazuki Fujita, Ibuki Kumazawa, Jyunpei Yokoi, et al.
Advanced Synthesis & Catalysis (2024) Vol. 366, Iss. 3, pp. 438-443
Closed Access | Times Cited: 2
Enantioselective Construction of Consecutive Tetrasubstituted Stereogenic Centers by Reaction of α-Substituted β-Nitroacrylates with Oxazol-5-(4H)-ones Catalyzed by Cinchona Alkaloid Sulfonamide Catalysts
Kazuki Fujita, Momona Hattori, Tsunayoshi Takehara, et al.
Organic Letters (2023) Vol. 25, Iss. 16, pp. 2835-2839
Closed Access | Times Cited: 6
Enantioselective Organocatalytic Addition of Nitromethane to Trifluoromethyl Aryl Ketimines Promoted by Electron‐Rich Bifunctional Iminophosphoranes
Milena Krstić, Maurizio Benaglia, Margherita Gazzotti, et al.
Advanced Synthesis & Catalysis (2023) Vol. 365, Iss. 7, pp. 1093-1098
Open Access | Times Cited: 5
Asymmetric Conjugate Addition of Phosphine Sulfides to α-Substituted β-Nitroacrylates Using Cinchona Alkaloid Amide Catalysts
Kosei Miyake, Akane Iwamura, Kazuki Fujita, et al.
Organic Letters (2024)
Closed Access | Times Cited: 1
Enantioselective Synthesis of Benzothiazolines from Fluoroalkyl Ketones Using Chiral Imidazoline−Phosphoric Acid Catalysts
Yuka Iizuka, Tatsumi Wada, K. Ogura, et al.
Advanced Synthesis & Catalysis (2022) Vol. 364, Iss. 24, pp. 4271-4274
Closed Access | Times Cited: 6
Secondary Orbital Effect Involving Fluorine is Responsible for Substrate‐Controlled Diastereodivergence in the Catalyzed syn‐aza‐Henry Reaction of α‐Fluoronitroalkanes
Ivor Smajlagic, Jeffrey N. Johnston, Travis Dudding
Chemistry - A European Journal (2023) Vol. 29, Iss. 24
Open Access | Times Cited: 3
Cooperative assistance of a sulfonamide in a proline-mediated direct asymmetric aldol addition
Kiran Kumari, Meeta Bhati, Roopendra Singh Madhukar, et al.
New Journal of Chemistry (2023) Vol. 47, Iss. 36, pp. 17042-17050
Closed Access | Times Cited: 3
Direct Catalytic Enantioselective Reaction of α-Isocyanoacetonitriles with Ketimines Using Cinchona Alkaloid Amide–Cu(II) Catalysts
Shuichi Nakamura, Masato Kibe, Tsunayoshi Takehara, et al.
Organic Letters (2023) Vol. 25, Iss. 6, pp. 1040-1044
Closed Access | Times Cited: 2
Enantioselective Allenylation of Ketimines Derived from Isatins Using Chiral Bis(imidazoline)‐Palladium Catalysts
Yusuke Oyamada, Shintaro Yamasaki, Mika Tsuzuki, et al.
Advanced Synthesis & Catalysis (2022) Vol. 364, Iss. 24, pp. 4255-4259
Closed Access | Times Cited: 4
Chiral Phosphoric Acid-Catalyzed Enantioselective Synthesis of 2,2-Disubstituted 2,3-Dihydro-4-quinolones from Isatins and 2′-Aminoacetophenones
Hidenori Andatsu, Yuto Terashima, Ryota Kawamura, et al.
Organic Letters (2024)
Closed Access
Catalytic Enantioselective Construction of trans-Fused 2,3,3a,4,5,9b-Hexahydro-1H-pyrrolo[3,2-c]quinoline Derivatives by Intramolecular [3+2]-Cycloaddition
Tetsuya Tsujihara, Tomikazu Kawano, Keigo Sato, et al.
Heterocycles (2023) Vol. 106, Iss. 2, pp. 336-336
Open Access
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