Changhong Ko

506 total citations
17 papers, 410 citations indexed

About

Changhong Ko is a scholar working on Organic Chemistry, Molecular Biology and Environmental Chemistry. According to data from OpenAlex, Changhong Ko has authored 17 papers receiving a total of 410 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Organic Chemistry, 5 papers in Molecular Biology and 2 papers in Environmental Chemistry. Recurrent topics in Changhong Ko's work include Synthetic Organic Chemistry Methods (9 papers), Asymmetric Synthesis and Catalysis (5 papers) and Cyclopropane Reaction Mechanisms (4 papers). Changhong Ko is often cited by papers focused on Synthetic Organic Chemistry Methods (9 papers), Asymmetric Synthesis and Catalysis (5 papers) and Cyclopropane Reaction Mechanisms (4 papers). Changhong Ko collaborates with scholars based in United States and China. Changhong Ko's co-authors include Richard P. Hsung, Sunil K. Ghosh, Ting Lu, Z.F. Al-Rashid, Yu Tang, Zhenlei Song, Jia Liu, Jin Yang, John B. Feltenberger and Donald Martin and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Angewandte Chemie International Edition.

In The Last Decade

Changhong Ko

17 papers receiving 405 citations

Peers

Changhong Ko

BIOTE

BIOMA

Sanjib Das India

Xiaowen Peng United States

Robert V. Kolakowski United States

Neil M. Kershaw United Kingdom

Remo Gamboni Switzerland

Patrice Renaut France

Brian R. Dixon United States

Akiharu Ueki Japan

David F. Kachensky United States

Till Winkler Germany

Sanjib Das India

Changhong Ko

281 ×0.9

109 ×1.3

55 ×1.0

BIOTE

10 ×0.2

BIOMA

35 ×0.8

Citations per year, relative to Changhong Ko Changhong Ko (= 1×) peers Sanjib Das

Countries citing papers authored by Changhong Ko

Since Specialization

Citations

This map shows the geographic impact of Changhong Ko'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 Changhong Ko with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Changhong Ko more than expected).

Fields of papers citing papers by Changhong Ko

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Changhong Ko. 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 Changhong Ko. The network helps show where Changhong Ko may publish in the future.

Co-authorship network of co-authors of Changhong Ko

This figure shows the co-authorship network connecting the top 25 collaborators of Changhong Ko. A scholar is included among the top collaborators of Changhong Ko 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 Changhong Ko. Changhong Ko is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

17 of 17 papers shown

Kennemur, Jennifer L., et al.. (2025). Enzymatic Stereodivergent Synthesis of Azaspiro[2.y]alkanes. Journal of the American Chemical Society. 147(31). 27165–27171. 1 indexed citations

Deng, Jun, Richard P. Hsung, & Changhong Ko. (2012). Gassman’s Cationic [2 + 2] Cycloadditions Using Temporary Tethers. Organic Letters. 14(21). 5562–5565. 20 indexed citations

Hsung, Richard P., et al.. (2012). ASSEMBLY OF THE SOUTHERN MACROCYCLIC HALF OF (+)-SPIRASTRELLOLIDE A THROUGH CYCLIC ACETAL TETHERED RING-CLOSING METATHESIS AND 1,3-ANTI-MUKAIYAMA-ALDOL. Heterocycles. 86(1). 565–565. 7 indexed citations

Hsung, Richard P., John B. Feltenberger, Changhong Ko, Jun Deng, & Sunil K. Ghosh. (2011). Development of an Intramolecular Gassman’s [2+2] Cycloaddition. Heterocycles. 84(2). 843–843. 8 indexed citations

Ko, Changhong, Richard P. Hsung, Z.F. Al-Rashid, et al.. (2008). ChemInform Abstract: A Stereoselective Intramolecular Halo‐Etherification of Chiral Enamides in the Synthesis of Halogenated Cyclic Ethers.. ChemInform. 39(13). 1 indexed citations

Ko, Changhong, John B. Feltenberger, Sunil K. Ghosh, & Richard P. Hsung. (2008). Gassman’s Intramolecular [2 + 2] Cationic Cycloaddition. Formal Total Syntheses of Raikovenal and epi-Raikovenal. Organic Letters. 10(10). 1971–1974. 35 indexed citations

Song, Zhenlei, Ting Lu, Richard P. Hsung, et al.. (2007). Stereoselective Simmons–Smith Cyclopropanation of Chiral Enamides. Angewandte Chemie International Edition. 46(22). 4069–4072. 70 indexed citations

Ko, Changhong, Richard P. Hsung, Z.F. Al-Rashid, et al.. (2007). A Stereoselective Intramolecular Halo-Etherification of Chiral Enamides in the Synthesis of Halogenated Cyclic Ethers. Organic Letters. 9(22). 4459–4462. 22 indexed citations

Song, Zhenlei, Ting Lu, Richard P. Hsung, et al.. (2007). Stereoselective Simmons—Smith Cyclopropanation of Chiral Enamides.. ChemInform. 38(37). 1 indexed citations

10.

Song, Zhenlei, Ting Lu, Richard P. Hsung, et al.. (2007). Stereoselective Simmons–Smith Cyclopropanation of Chiral Enamides. Angewandte Chemie. 119(22). 4147–4150. 22 indexed citations

11.

Ko, Changhong & Richard P. Hsung. (2006). An unusual stereoselectivity in the anomeric substitution with carbamates promoted by HNTf₂. Organic & Biomolecular Chemistry. 5(3). 431–434. 17 indexed citations

12.

Ghosh, Sunil K., Changhong Ko, Jia Liu, Jiashi Wang, & Richard P. Hsung. (2006). A ketal-tethered RCM strategy toward the synthesis of spiroketal related natural products. Tetrahedron. 62(45). 10485–10496. 38 indexed citations

13.

Liu, Jia, Jin Yang, Changhong Ko, & Richard P. Hsung. (2006). Synthesis of the C1–C16 fragment of spirastrellolide A. Tetrahedron Letters. 47(34). 6121–6123. 55 indexed citations

14.

Burch, Ronald M., Moshe Weitzberg, Donald Martin, et al.. (1991). N-(fluorenyl-9-methoxycarbonyl) amino acids, a class of antiinflammatory agents with a different mechanism of action.. Proceedings of the National Academy of Sciences. 88(2). 355–359. 97 indexed citations

15.

Heindel, Ned D. & Changhong Ko. (1974). 1,2,4‐Benzothiadiazine 1,1‐dioxides by acetylene dicarboxylate additions. Journal of Heterocyclic Chemistry. 11(6). 1109–1112. 1 indexed citations

16.

Heindel, Ned D., Changhong Ko, Richard B. Birrer, & Joseph R. Merkel. (1972). Antibacterial activity of o-amino-N-hydroxybenzenesulfonamides. Journal of Medicinal Chemistry. 15(1). 118–120. 4 indexed citations

17.

Heindel, Ned D. & Changhong Ko. (1970). Benzothiazinones by addition of o‐Mercaptobenzamides to acetylene esters. Journal of Heterocyclic Chemistry. 7(5). 1007–1011. 11 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.

Explore authors with similar magnitude of impact