John H. Ryan

1.6k citations

55 papers · 1.2k indexed · h-index 22

Impact in

Organic Chemistry top 2%
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Asymmetric Synthesis and Catalysis
- Cyclopropane Reaction Mechanisms
- Oxidative Organic Chemistry Reactions
- Catalytic Cross-Coupling Reactions
- Synthetic Organic Chemistry Methods
Virology top 10%

Papers in ⓘ

Organic Chemistry 33
- Synthesis and Catalytic Reactions 9
- Asymmetric Synthesis and Catalysis 7
- Cyclopropane Reaction Mechanisms 6
- Synthetic Organic Chemistry Methods 5
- Oxidative Organic Chemistry Reactions 5
Molecular Biology 16
- Chemical Synthesis and Analysis 6
- Biochemical and Molecular Research 6

Co-authors: Adam G. Meyer (6 shared papers)Andrew B. Holmes (10 shared papers)Peter J. Stang (2 shared papers)Simon Saubern (9 shared papers)Christopher J. T. Hyland (5 shared papers)Michael G. Gardiner (4 shared papers)James M. MacDonald (6 shared papers)Allan H. White (2 shared papers)
Journals: Australian Journal of Chemistry (7 papers)The Journal of Organic Chemistry (4 papers)Tetrahedron (3 papers)International Journal for Parasitology Drugs and Drug Resistance (3 papers)Organic Letters (3 papers)
Partner nations: Australia United States United Kingdom

In The Last Decade

John H. Ryan

51 papers receiving 1.2k citations

Peers

Countries citing papers authored by John H. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by John H. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John H. Ryan. 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 John H. Ryan. The network helps show where John H. Ryan may publish in the future.

Co-authors

The 25 scholars most cited alongside John H. Ryan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John H. Ryan Line = papers co-authored together John H. Ryan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 55 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	The Diastereoselective Synthesis of Pyrroloindolines by Pd-Catalyzed Dearomative Cycloaddition of 1-Tosyl-2-vinylaziridine to 3-Nitroindoles ACS Catalysis ·Daniel J. Rivinoja, Yi Sing Gee, Michael G. Gardiner, John H. Ryan, Christopher J. T. Hyland	2016	94
2	1,3-Dipolar Cycloaddition Reactions of Azomethine Ylides with Carbonyl Dipolarophiles Yielding Oxazolidine Derivatives Molecules ·Adam G. Meyer, John H. Ryan	2016	77
3	Reactivity of Diaryliodine(III) Triflates toward Palladium(II) and Platinum(II): Reactions of C(sp²)−I Bonds to Form Arylmetal(IV) Complexes; Access to Dialkyl(aryl)metal(IV), 1,4-Benzenediyl-Bridged Platinum(IV), and Triphenylplatinum(IV) Species; and Structural Studies of Platinum(IV) Complexes Organometallics ·Allan J. Canty, Jim Patel, Thomas Rodemann, John H. Ryan, Brian W. Skelton, Allan H. White	2004	76
4	Pd-Catalyzed Dearomative [3 + 2] Cycloaddition of 3-Nitroindoles with 2-Vinylcyclopropane-1,1-dicarboxylates The Journal of Organic Chemistry ·Yi Sing Gee, Daniel J. Rivinoja, Steven M. Wales, Michael G. Gardiner, John H. Ryan, Christopher J. T. Hyland	2017	64
5	1,3-Dipolar Cycloaddition−Decarboxylation Reactions of an Azomethine Ylide with Isatoic Anhydrides: Formation of Novel Benzodiazepinones Organic Letters ·Nadia Spiccia, José A. Basutto, Pawel G. Jokisz, Leon S.‐M. Wong, Adam G. Meyer, Andrew B. Holmes, Jonathan M. White, John H. Ryan	2010	64
6	Direct α-arylation of ketones: The reaction of cyclic ketone enolates with diphenyliodonium triflate Tetrahedron Letters ·John H. Ryan, Peter J. Stang	1997	59
7	A new and high yielding synthesis of unstable pyrroles via a modified Clauson-Kaas reaction Tetrahedron Letters ·Brendon S. Gourlay, Peter P. Molesworth, John H. Ryan, Jason A. Smith	2005	51
8	A Gram‐Scale Batch and Flow Total Synthesis of Perhydrohistrionicotoxin Chemistry - A European Journal ·Malte Brasholz, James M. MacDonald, Simon Saubern, John H. Ryan, Andrew B. Holmes	2010	50
9	Native State Mass Spectrometry, Surface Plasmon Resonance, and X-ray Crystallography Correlate Strongly as a Fragment Screening Combination Journal of Medicinal Chemistry ·Lucy A. Woods, Olan Dolezal, Bin Ren, John H. Ryan, Thomas S. Peat, Sally‐Ann Poulsen	2016	48
10	Small Molecule Inhibitors of the LEDGF Site of Human Immunodeficiency Virus Integrase Identified by Fragment Screening and Structure Based Design PLoS ONE ·Thomas S. Peat, David I. Rhodes, Nick Vandegraaff, Giang Le, Jessica A. Smith, Lisa J. Clark, E. D. Jones, Jonathan A. Coates, Neeranat Thienthong, Janet Newman, Olan Dolezal, Roger J. Mulder, John H. Ryan, G. Paul Savage, Craig L. Francis, John Deadman	2012	46
11	Structural Basis for a New Mechanism of Inhibition of H I V-1 Integrase Identified by Fragment Screening and Structure-Based Design Antiviral chemistry & chemotherapy ·David I. Rhodes, Thomas S. Peat, Nick Vandegraaff, Dharshini Jeevarajah, Giang Le, E. D. Jones, Jessica A. Smith, Jonathan A. Coates, Lisa J Winfeld, Neeranat Thienthong, Janet Newman, Del Lucent, John H. Ryan, G. Paul Savage, Craig L. Francis, John Deadman	2011	46
12	1,3-Dipolar cycloaddition reactions of azomethine ylides with aromatic dipolarophiles SHILAP Revista de lepidopterología ·John H. Ryan	2015	41
13	Ego identity status, conformity behavior, and personality in late adolescence. Journal of Personality and Social Psychology ·Gerald R. Adams, John H. Ryan, Joseph J. Hoffman, William R. Dobson, Elwin C. Nielsen	1984	40
14	Flow synthesis of tricyclic spiropiperidines as building blocks for the histrionicotoxin family of alkaloids Tetrahedron ·Malte Brasholz, Brian Alan Johnson, James M. MacDonald, Anastasios Polyzos, John Tsanaktsidis, Simon Saubern, Andrew B. Holmes, John H. Ryan	2010	38
15	Clean and efficient synthesis of O-silylcarbamates and ureas in supercritical carbon dioxide Chemical Communications ·Matthew J. Fuchter, Catherine J. Smith, Melanie W. S. Tsang, Alistair Boyer, Simon Saubern, John H. Ryan, Andrew B. Holmes	2008	37
16	Arylation of palladium(II) and platinum(II) by diphenyliodonium triflate to form metal(IV) species, and a structural analysis of an isomer of PtIMe2Ph(bpy) (bpy=2,2’-bipyridine) Inorganic Chemistry Communications ·Angela Bayler, Allan J. Canty, John H. Ryan, Brian W. Skelton, Allan H. White	2000	35
17	Synthesis of Bicyclic Enediynes from Bis[phenyl[(trifluoromethanesulfonyl)oxy]iodo]acetylene: A Tandem Diels−Alder/Palladium(II)- and Copper(I)-Cocatalyzed Cross-Coupling Approach The Journal of Organic Chemistry ·John H. Ryan, Peter J. Stang	1996	28
18	Synthesis of 5-Aryloxazolidines via 1,3-Dipolar Cycloaddition Reaction of a Non-Stabilized Azomethine Ylide with Aromatic Aldehydes Australian Journal of Chemistry ·John H. Ryan, Nadia Spiccia, Leon S.‐M. Wong, Andrew B. Holmes	2007	28
19	A novel in vitro image-based assay identifies new drug leads for giardiasis International Journal for Parasitology Drugs and Drug Resistance ·Christopher J. S. Hart, Taylah Munro, Katherine T. Andrews, John H. Ryan, Andrew G. Riches, Tina S. Skinner‐Adams	2017	25
20	Total Synthesis of (−)-Histrionicotoxin 285A and (−)-Perhydrohistrionicotoxin Organic Letters ·James M. MacDonald, Helen Horsley, John H. Ryan, Simon Saubern, Andrew B. Holmes	2008	25

About John H. Ryan

John H. Ryan is a scholar working on Organic Chemistry, Molecular Biology, Parasitology, Infectious Diseases and Biomedical Engineering, having authored 55 papers that have together received 1.2k indexed citations. Recurring topics across this work include Synthesis and Catalytic Reactions (9 papers), Asymmetric Synthesis and Catalysis (7 papers), Chemical Synthesis and Analysis (6 papers), Biochemical and Molecular Research (6 papers), Parasitic Infections and Diagnostics (6 papers), Cyclopropane Reaction Mechanisms (6 papers), Synthetic Organic Chemistry Methods (5 papers) and Oxidative Organic Chemistry Reactions (5 papers). The work is most often cited by research in Organic Chemistry (872 citations), Virology (60 citations), Process Chemistry and Technology (32 citations), Pharmaceutical Science (55 citations) and Inorganic Chemistry (78 citations). John H. Ryan has collaborated with scholars based in Australia, United States and United Kingdom. Frequent co-authors include Adam G. Meyer, Andrew B. Holmes, Peter J. Stang, Simon Saubern, Christopher J. T. Hyland, Michael G. Gardiner, James M. MacDonald, Allan H. White, Allan J. Canty and Brian W. Skelton. Their work appears in journals such as Australian Journal of Chemistry, The Journal of Organic Chemistry, Tetrahedron, International Journal for Parasitology Drugs and Drug Resistance and Organic Letters.

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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