Noboru Sayo

5.5k total citations · 3 hit papers
51 papers, 4.4k citations indexed

About

Noboru Sayo is a scholar working on Inorganic Chemistry, Organic Chemistry and Biomedical Engineering. According to data from OpenAlex, Noboru Sayo has authored 51 papers receiving a total of 4.4k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Inorganic Chemistry, 29 papers in Organic Chemistry and 17 papers in Biomedical Engineering. Recurrent topics in Noboru Sayo's work include Asymmetric Hydrogenation and Catalysis (33 papers), Surface Chemistry and Catalysis (13 papers) and Asymmetric Synthesis and Catalysis (12 papers). Noboru Sayo is often cited by papers focused on Asymmetric Hydrogenation and Catalysis (33 papers), Surface Chemistry and Catalysis (13 papers) and Asymmetric Synthesis and Catalysis (12 papers). Noboru Sayo collaborates with scholars based in Japan and United States. Noboru Sayo's co-authors include Hidenori Kumobayashi, Takao Saito, Hidemasa Takaya, Ryōji Noyori, Susumu Akutagawa, Takeshi Ohkuma, Masato Kitamura, Kazuhiko Matsumura, Tetsuo Ohta and Hideo Shimizu and has published in prestigious journals such as Journal of the American Chemical Society, Accounts of Chemical Research and The Journal of Organic Chemistry.

In The Last Decade

Noboru Sayo

50 papers receiving 4.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Asymmetric hydrogenation of .beta.-keto carboxylic esters. A practical, purely chemical access to .beta.-hydroxy esters in high enantiomeric purity

1987 588 citations Hidemasa Takaya, Noboru Sayo et al. profile →
Homogeneous asymmetric hydrogenation of functionalized ketones

1988 411 citations Noboru Sayo, Hidenori Kumobayashi et al. profile →
Stereoselective hydrogenation via dynamic kinetic resolution

1989 347 citations Hidemasa Takaya, Noboru Sayo et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Noboru Sayo Japan	26	3.0k	3.0k	1.2k	1.1k	519	51	4.4k
Tetsuo Ohta Japan	38	3.5k 1.2×	2.8k 0.9×	755 0.6×	1.0k 0.9×	499 1.0×	97	4.5k
Hidenori Kumobayashi Japan	31	3.3k 1.1×	2.7k 0.9×	961 0.8×	1.0k 1.0×	260 0.5×	48	4.4k
André H. M. de Vries Netherlands	35	4.7k 1.6×	3.2k 1.1×	988 0.8×	1.4k 1.3×	291 0.6×	57	5.7k
Susumu Akutagawa Japan	24	2.3k 0.8×	1.8k 0.6×	625 0.5×	667 0.6×	174 0.3×	43	3.2k
Denis Sinou France	34	3.7k 1.2×	1.5k 0.5×	387 0.3×	1.2k 1.1×	235 0.5×	215	4.3k
Òscar Pàmies Spain	45	6.7k 2.3×	5.6k 1.9×	1.2k 1.0×	2.6k 2.4×	663 1.3×	169	8.3k
Jian‐Hua Xie China	52	6.8k 2.3×	5.5k 1.8×	2.2k 1.8×	1.6k 1.5×	825 1.6×	152	8.9k
Montserrat Diéguez Spain	42	6.5k 2.2×	5.1k 1.7×	910 0.7×	1.8k 1.7×	634 1.2×	175	7.4k
David J. Ager United States	25	3.0k 1.0×	1.2k 0.4×	412 0.3×	1.1k 1.0×	224 0.4×	96	3.8k
Jean‐Pierre Genêt France	50	7.5k 2.5×	2.9k 1.0×	679 0.5×	1.2k 1.1×	176 0.3×	168	8.3k

Countries citing papers authored by Noboru Sayo

Since Specialization

Citations

This map shows the geographic impact of Noboru Sayo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Noboru Sayo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Noboru Sayo more than expected).

Fields of papers citing papers by Noboru Sayo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Noboru Sayo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Noboru Sayo. The network helps show where Noboru Sayo may publish in the future.

Co-authorship network of co-authors of Noboru Sayo

This figure shows the co-authorship network connecting the top 25 collaborators of Noboru Sayo. A scholar is included among the top collaborators of Noboru Sayo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Noboru Sayo. Noboru Sayo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Yamada, S., Noboru Sayo, Takao Saito, et al.. (2013). Amide-transforming activity of Streptomyces: possible application to the formation of hydroxy amides and aminoalcohols. Applied Microbiology and Biotechnology. 97(14). 6223–6230. 4 indexed citations

Yokoyama, Naota, Yuji Nakayama, Hideki Nara, & Noboru Sayo. (2013). Synthesis of Well‐Defined Diphenylvinyl(cyclopropyl)phosphine‐Palladium Complexes for the Suzuki–Miyaura Reaction and Buchwald–Hartwig Amination. Advanced Synthesis & Catalysis. 355(10). 2083–2088. 10 indexed citations

Yamada, S., et al.. (2013). Preparation of optically-active 3-pyrrolidinol and its derivatives from 1-benzoylpyrrolidinol by hydroxylation with Aspergillus sp. and stereo-selective esterification by a commercial lipase. Biotechnology Letters. 36(3). 595–600. 1 indexed citations

Sayo, Noboru. (2011). Catalyst Development Oriented to Optimize Synthetic Processes. Journal of Synthetic Organic Chemistry Japan. 69(5). 484–492.

Kuriyama, Wataru, et al.. (2009). A Homogeneous Catalyst for Reduction of Optically Active Esters to the Corresponding Chiral Alcohols without Loss of Optical Purities. Advanced Synthesis & Catalysis. 352(1). 92–96. 96 indexed citations

Ohshima, Takashi, et al.. (2007). Highly Enantio‐ and s‐trans CC Bond Selective Catalytic Hydrogenation of Cyclic Enones: Alternative Synthesis of (−)‐Menthol. Chemistry - A European Journal. 14(7). 2060–2066. 38 indexed citations

Saito, Takao, et al.. (2001). New Chiral Diphosphine Ligands Designed to have a Narrow Dihedral Angle in the Biaryl Backbone. Advanced Synthesis & Catalysis. 343(3). 264–267. 7 indexed citations

Saito, Takao, et al.. (2001). New Chiral Diphosphine Ligands Designed to have a Narrow Dihedral Angle in the Biaryl Backbone. Advanced Synthesis & Catalysis. 343(3). 264–267. 390 indexed citations

Kumobayashi, Hidenori, et al.. (1999). The Development of the New Processes for Manufacturing the Key Intermediates of .BETA.-Lactam Antibiotics.. Journal of Synthetic Organic Chemistry Japan. 57(5). 387–393. 4 indexed citations

10.

Sayo, Noboru, et al.. (1997). Industrial Asymmetric Synthesis by Use of Metal-BINAP Catalysts.. NIPPON KAGAKU KAISHI. 835–846. 5 indexed citations

11.

Terada, Masahiro, Noboru Sayo, & Koichi Mikami. (1995). Double Asymmetric Synthesis by Asymmetric Catalytic Carbonyl-Ene Type Reaction with Chiral Ene Components: Asymmetric Catalytic Synthesis of Aspartyl Dipeptide Sweetener. Synlett. 1995(5). 411–415. 12 indexed citations

12.

Zhang, Xiaoyong, Kazushi Mashima, Kinko Koyano, et al.. (1994). Synthesis of partially hydrogenated 2,2′-bis(diphenylphosphenyl)-1,1′-binaphthyl (BINAP) ligands and their application to catalytic asymmetric hydrogenation. Journal of the Chemical Society Perkin Transactions 1. 2309–2322. 65 indexed citations

13.

Zhang, Xiaoyong, Kazushi Mashima, Kinko Koyano, et al.. (1991). Synthesis of partially hydrogenated BINAP variants. Tetrahedron Letters. 32(49). 7283–7286. 87 indexed citations

14.

Sayo, Noboru, et al.. (1984). Acyclic stereocontrol via asymmetric [2,3]-Wittig rearrangement with high enantio- and erythro-selectivity and its use in the chiral synthesis of insect pheromones. Tetrahedron Letters. 25(5). 565–568. 25 indexed citations

15.

Nakai, Takeshi, Kōichi Mikami, & Noboru Sayo. (1983). . Journal of Synthetic Organic Chemistry Japan. 41(2). 100–116. 15 indexed citations

16.

Sayo, Noboru, et al.. (1982). Chirality transmission via tandem sigmatropic rearrangement: Regio- and stereochemical outcome in the tandem Wittig—oxy-Cope sequence of allyl cis-5-methyl-2-cyclohexenyl ether. Tetrahedron Letters. 23(38). 3931–3934. 19 indexed citations

17.

Torii, Sigeru, Noboru Sayo, & Hideo Tanaka. (1980). REACTION OF SULFENAMIDES WITH DI-ALKYL AND TRIALKYL PHOSPHITES.AN EFFICIENT SYNTHESIS OF PHOSPHORAMIDATES BY UNUSUAL SUBSTITUTION AT S–N BOND IN (2-BENZOTHIAZOLYL)SULFENAMIDES. Chemistry Letters. 9(6). 695–698. 10 indexed citations

18.

Torii, Sigeru, et al.. (1980). A DIRECT PHENYLSELENENYLATION OF ALKYL HALIDES, ALKENYL SULFONATES, AND EPOXIDES BY AN ELECTROREDUCTION OF DIPHENYL DISELENIDE. Chemistry Letters. 9(7). 867–868. 6 indexed citations

19.

Sayo, Noboru, et al.. (1979). Electrosynthesis of heteroatom bonds. 5. Direct cross-coupling of dialkylphosphites with amines by an iodonium ion-promoted electrolytic procedure. Tetrahedron Letters. 20(46). 4471–4474. 12 indexed citations

20.

Torii, Sigeru, Hideo Tanaka, & Noboru Sayo. (1979). Electrosynthesis of heteroatom-heteroatom bonds. 4. Direct cross-coupling of dialkyl (or diaryl) phosphites with disulfides by a sodium bromide promoted electrolytic procedure. The Journal of Organic Chemistry. 44(16). 2938–2941. 37 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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