Stephen P. Keen

674 citations

21 papers · 435 indexed · h-index 14

Co-authors: Steven M. Weinreb Susan E. Gibson Grier A. Wallace Geoffrey R. Heintzelman Stefano C. G. Biagini Jeremy P. Scott Andrew Gibson Karel M. J. Brands
Topics: Chemical Synthesis and Analysis (6 papers)Marine Toxins and Detection Methods (4 papers)Environmental Impact and Sustainability (3 papers)
Cited by: Organic Chemistry Biotechnology Environmental Chemistry
Journals: Journal of the American Chemical Society PLoS ONE Chemical Communications
Partner nations: United States United Kingdom Canada

In The Last Decade

Stephen P. Keen

21 papers receiving 424 citations

Peers

Countries citing papers authored by Stephen P. Keen

Since Specialization

Citations

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

Fields of papers citing papers by Stephen P. Keen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephen P. Keen. 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 Stephen P. Keen. The network helps show where Stephen P. Keen may publish in the future.

Co-authorship network of co-authors of Stephen P. Keen

This figure shows the co-authorship network connecting the top 25 collaborators of Stephen P. Keen. A scholar is included among the top collaborators of Stephen P. Keen 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 Stephen P. Keen. Stephen P. Keen 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

#	Work	Indexed citations
1	Process Development of a Tricyclic Diazepine-Based IDH1 Mutant Inhibitor 2024 ·Organic Process Research & Development ·Matthew L. Maddess,Ed Cleator,Mariko Morimoto,(unknown),A. Dieguez-Vazquez,Andrew Gibb,(unknown),Melodie Christensen,(unknown),Feng Peng,(unknown),Stephen P. Keen,Steven F. Oliver	2
2	Lotka's wheel and the long arm of history: how does the distant past determine today's global rate of energy consumption? 2022 ·Earth System Dynamics ·Timothy J. Garrett,Matheus R. Grasselli,Stephen P. Keen	2
3	Development of a Stereoselective Synthesis of (1R,4R)- and (1S,4S)-2-Oxa-5-azabicyclo[2.2.2]octane 2021 ·Organic Process Research & Development ·Matthew L. Maddess,Ed Cleator,Mariko Morimoto,(unknown),A. Dieguez-Vazquez,Andrew Gibb,(unknown),Jie Wang,Ji Qi,Lingzhu Kong,(unknown),Stephen P. Keen,Steven F. Oliver,Xin Wen,Yu‐hong Lam	6
4	Identification of a 50-year scaling relating current global energy demands to historically cumulative economic production 2021 ·Timothy J. Garrett,Matheus R. Grasselli,Stephen P. Keen	1
5	Past world economic production constrains current energy demands: Persistent scaling with implications for economic growth and climate change mitigation 2020 ·PLoS ONE ·Timothy J. Garrett,Matheus R. Grasselli,Stephen P. Keen	13
6	Enantioselective Synthesis of 4′-Ethynyl-2-fluoro-2′-deoxyadenosine (EFdA) via Enzymatic Desymmetrization 2017 ·Organic Letters ·Mark McLaughlin,Jongrock Kong,Kevin M. Belyk,Billy Chen,Andrew Gibson,Stephen P. Keen,David Lieberman,Erika M. Milczek,Jeffrey C. Moore,David Murray,Feng Peng,Ji Qi,Robert A. Reamer,Zhiguo J. Song,Lushi Tan,Lin Wang,Michael Williams	43
7	Process Development of the HCV NS5B Site D Inhibitor MK-8876 2016 ·Organic Process Research & Development ·Michael Williams,Qinghao Chen,(unknown),(unknown),Spencer D. Dreher,Andrew Gibson,(unknown),Jinlong Yan,Stephen P. Keen,Alfred Y. Lee,David Lieberman,(unknown),Guiquan Liu,Mark McLaughlin,Mikhail Reibarkh,Jeremy P. Scott,(unknown),Lushi Tan,Richard J. Varsolona,(unknown)	12
8	Enantioselective Synthesis of a Highly Substituted Tetrahydrofluorene Derivative as a Potent and Selective Estrogen Receptor Beta Agonist 2014 ·Organic Process Research & Development ·Matthew L. Maddess,Jeremy P. Scott,(unknown),Carl A. Baxter,Nadine Bremeyer,Sarah E. Brewer,Kevin R. Campos,Ed Cleator,A. Dieguez-Vazquez,Andrew Gibb,Andrew Gibson,(unknown),Stephen P. Keen,Artis Klapars,Jaemoon Lee,Jing Li,Joseph E. Lynch,(unknown),Debra J. Wallace,Robert D. Wilson	11
9	Enantioselective Synthesis of β-Aryloxycarboxylic Esters via Asymmetric Hydrogenation of β-Aryloxy-α,β-Unsaturated Esters 2012 ·Organic Letters ·Gavin W. Stewart,Michael Shevlin,(unknown),Andrew Gibson,Stephen P. Keen,Jeremy P. Scott	17
10	Development of a Fit-for-Purpose Large-Scale Synthesis of an Oral PARP Inhibitor 2011 ·Organic Process Research & Development ·Debra J. Wallace,Carl A. Baxter,(unknown),Nadine Bremeyer,Sarah E. Brewer,Richard Desmond,Khateeta M. Emerson,(unknown),(unknown),Weifeng Hu,Stephen P. Keen,(unknown),(unknown),Peter Sajonz,Lushi Tan,Robert D. Wilson,George Zhou,(unknown)	35
11	Multikilogram-Scale Synthesis of a Chiral Cyclopropanol and an Investigation of the Safe Use of Lithium Acetylide–Ethylene Diamine Complex 2011 ·Organic Process Research & Development ·(unknown),Carl A. Baxter,Gregory L. Beutner,Khateeta M. Emerson,Fred J. Fleitz,Simon R. Johnson,Stephen P. Keen,Mary M. Kim,Jeffrey T. Kuethe,William R. Leonard,(unknown),(unknown),Christopher Roberge,Nobuyoshi Yasuda	30
12	Process Development and Large-Scale Synthesis of a c-Met Kinase Inhibitor 2010 ·Organic Process Research & Development ·Gavin W. Stewart,Karel M. J. Brands,Sarah E. Brewer,Cameron J. Cowden,Antony J. Davies,John S. Edwards,Andrew Gibson,(unknown),Jason D. Katz,Stephen P. Keen,(unknown),Jeremy P. Scott,Debra J. Wallace,(unknown)	17
13	Practical Asymmetric Synthesis of a γ-Secretase Inhibitor Exploiting Substrate-Controlled Intramolecular Nitrile Oxide−Olefin Cycloaddition 2006 ·The Journal of Organic Chemistry ·Jeremy P. Scott,Steven F. Oliver,Karel M. J. Brands,Sarah E. Brewer,Antony J. Davies,Andrew Gibb,(unknown),Stephen P. Keen,(unknown),Robert A. Reamer,Robert D. Wilson,Ulf‐H. Dolling	44
14	Practical Asymmetric Synthesis of a Non-Peptidic α_vβ₃ Antagonist 2005 ·The Journal of Organic Chemistry ·Stephen P. Keen,Cameron J. Cowden,Brian Bishop,Karel M. J. Brands,Antony J. Davies,Ulf H. Dolling,David Lieberman,Gavin W. Stewart	28
15	ChemInform Abstract: Stereoselective Total Syntheses and Reassignment of Stereochemistry of the Freshwater Cyanobacterial Hepatotoxins Cylindrospermopsin and 7‐Epicylindrospermopsin. 2002 ·ChemInform ·Geoffrey R. Heintzelman,(unknown),Stephen P. Keen,Grier A. Wallace,Steven M. Weinreb	1
16	Stereoselective Total Syntheses and Reassignment of Stereochemistry of the Freshwater Cyanobacterial Hepatotoxins Cylindrospermopsin and 7-Epicylindrospermopsin 2002 ·Journal of the American Chemical Society ·Geoffrey R. Heintzelman,(unknown),Stephen P. Keen,Grier A. Wallace,Steven M. Weinreb	39
17	Stereoselective Total Synthesis of the Cyanobacterial Hepatotoxin 7-Epicylindrospermopsin: Revision of the Stereochemistry of Cylindrospermopsin 2001 ·Journal of the American Chemical Society ·Geoffrey R. Heintzelman,(unknown),Stephen P. Keen,Grier A. Wallace,Steven M. Weinreb	34
18	Cross-metathesis of unsaturated α-amino acid derivatives 1998 ·Journal of the Chemical Society Perkin Transactions 1 ·Stefano C. G. Biagini,Susan E. Gibson,Stephen P. Keen	40
19	Studies on the Synthesis of Pinnaic Acid and Halichlorine. Stereoselective Preparation of a (Z)-δ-Chloro-γ,δ-unsaturated-β-keto Phosphonate as a Side Chain Synthon 1998 ·The Journal of Organic Chemistry ·Stephen P. Keen,Steven M. Weinreb	24
20	Cross metathesis of the amino acid homoallylglycine 1997 ·Chemical Communications ·Susan E. Gibson,V.C. Gibson,Stephen P. Keen	23

About Stephen P. Keen

Stephen P. Keen is a scholar working on Pharmaceutical Science, Organic Chemistry and Environmental Chemistry, having authored 21 papers that have together received 435 indexed citations. Recurring topics across this work include Chemical Synthesis and Analysis (6 papers), Marine Toxins and Detection Methods (4 papers) and Environmental Impact and Sustainability (3 papers). The work is most often cited by research in Organic Chemistry (325 citations), Biotechnology (41 citations) and Environmental Chemistry (45 citations). Stephen P. Keen has collaborated with scholars based in United States, United Kingdom and Canada. Frequent co-authors include Steven M. Weinreb, Susan E. Gibson, Grier A. Wallace, Geoffrey R. Heintzelman, Stefano C. G. Biagini, Jeremy P. Scott, Andrew Gibson, Karel M. J. Brands, Antony J. Davies and Gavin W. Stewart. Their work appears in journals such as Journal of the American Chemical Society, PLoS ONE and Chemical Communications.

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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