Olivier Dirat

1.0k total citations
34 papers, 755 citations indexed

About

Olivier Dirat is a scholar working on Organic Chemistry, Molecular Biology and Health, Toxicology and Mutagenesis. According to data from OpenAlex, Olivier Dirat has authored 34 papers receiving a total of 755 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Organic Chemistry, 12 papers in Molecular Biology and 8 papers in Health, Toxicology and Mutagenesis. Recurrent topics in Olivier Dirat's work include Synthetic Organic Chemistry Methods (9 papers), Water Treatment and Disinfection (8 papers) and Carbohydrate Chemistry and Synthesis (6 papers). Olivier Dirat is often cited by papers focused on Synthetic Organic Chemistry Methods (9 papers), Water Treatment and Disinfection (8 papers) and Carbohydrate Chemistry and Synthesis (6 papers). Olivier Dirat collaborates with scholars based in United Kingdom, United States and France. Olivier Dirat's co-authors include Barry M. Trost, Janet L. Gunzner, Yves Langlois, Young Ho Rhee, Ian W. Ashworth, Matthew Whiting, Cyrille Kouklovsky, Andrew Teasdale, Thierry Vidal and Erik J. Hembre and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Nature Nanotechnology.

In The Last Decade

Olivier Dirat

33 papers receiving 725 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Olivier Dirat United Kingdom 16 492 204 133 76 71 34 755
Shu Yu United States 14 659 1.3× 206 1.0× 36 0.3× 49 0.6× 125 1.8× 26 877
Hai‐Hua Lu China 17 904 1.8× 266 1.3× 25 0.2× 60 0.8× 193 2.7× 39 1.1k
Alan E. Walts United States 10 457 0.9× 229 1.1× 125 0.9× 44 0.6× 79 1.1× 14 697
Michael C. Hillier United States 14 409 0.8× 199 1.0× 21 0.2× 39 0.5× 53 0.7× 21 521
Q. Nhu N. Nguyen United States 11 353 0.7× 157 0.8× 25 0.2× 35 0.5× 55 0.8× 14 539
R. Caple United States 15 604 1.2× 92 0.5× 31 0.2× 36 0.5× 73 1.0× 48 727
Carolina M. Avila Brazil 10 179 0.4× 91 0.4× 49 0.4× 31 0.4× 56 0.8× 15 327
Houhua Li China 24 1.4k 2.9× 381 1.9× 61 0.5× 252 3.3× 415 5.8× 46 1.8k
Elwin Janssen Netherlands 16 756 1.5× 372 1.8× 44 0.3× 66 0.9× 44 0.6× 31 1.0k
Gregory D. Berger United States 13 288 0.6× 475 2.3× 30 0.2× 96 1.3× 13 0.2× 21 748

Countries citing papers authored by Olivier Dirat

Since Specialization
Citations

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

Fields of papers citing papers by Olivier Dirat

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Olivier Dirat

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

All Works

20 of 20 papers shown
1.
O’Brien, Matthew N., David A. Foley, Roger H. Pak, et al.. (2025). Chemistry, manufacturing and controls strategies for using novel excipients in lipid nanoparticles. Nature Nanotechnology. 20(3). 331–344. 15 indexed citations
2.
3.
Urquhart, Michael W., Michael J. Burns, Hugh Clark, et al.. (2024). Leveraging ICH M7 Control Options 3 and 4: Discussion and Clarification Using Industrial Case Studies. Organic Process Research & Development. 28(8). 3295–3306. 2 indexed citations
4.
Bercu, Joel P., Olivier Dirat, Krista L. Dobo, et al.. (2024). N-Nitrosamine drug substance related impurities (NDSRIs) – A proposal for the addition of subcategories to carcinogenic potency categorization approach categories 1 and 2 for NDSRIs with a molecular weight > 200 Da. Regulatory Toxicology and Pharmacology. 154. 105704–105704. 7 indexed citations
5.
Chahrour, Osama, Paul G. Bulger, Olivier Dirat, et al.. (2024). Risk Evaluation of N-Nitrosamines in Drug-Linker Intermediates Used To Generate Antibody–Drug Conjugates. Organic Process Research & Development. 28(8). 3085–3093. 2 indexed citations
6.
Yu, Shu, J. Christopher McWilliams, Olivier Dirat, et al.. (2024). A Kinetic Model for Assessing Potential Nitrosamine Carcinogenicity. Chemical Research in Toxicology. 37(8). 1382–1393. 5 indexed citations
7.
Bulger, Paul G., Michael T. Jones, J. Gair Ford, et al.. (2024). Risk Assessment and Control of N-Nitrosamines in Antibody–Drug Conjugates: Current Industry Practices. Organic Process Research & Development. 28(8). 3078–3084. 2 indexed citations
8.
Ashworth, Ian W., Timothy T. Curran, Olivier Dirat, et al.. (2023). A Consideration of the Extent That Tertiary Amines Can Form N-Nitroso Dialkylamines in Pharmaceutical Products. Organic Process Research & Development. 27(10). 1714–1718. 18 indexed citations
9.
Ashworth, Ian W., et al.. (2023). Approaches and Considerations for the Investigation and Synthesis of N-Nitrosamine Drug Substance-Related Impurities (NDSRIs). Organic Process Research & Development. 27(10). 1784–1791. 20 indexed citations
10.
Dobo, Krista L., Michelle Kenyon, Olivier Dirat, et al.. (2022). Practical and Science-Based Strategy for Establishing Acceptable Intakes for Drug Product N-Nitrosamine Impurities. Chemical Research in Toxicology. 35(3). 475–489. 62 indexed citations
11.
Daniels, David S. B., et al.. (2021). Development of an Intrinsically Safer Methanolysis/Aromatic Nitro Group Reduction for Step 1 and 2 of Talazoparib Tosylate. Organic Process Research & Development. 25(12). 2686–2692.
12.
Dirat, Olivier, Barry R. Dillon, Stuart P. Green, et al.. (2011). The Lactol Route to Fesoterodine: An Amine-Promoted Friedel–Crafts Alkylation on Commercial Scale. Organic Process Research & Development. 15(5). 1010–1017. 15 indexed citations
13.
Elliott, Jason, Emma Carlson, Gary G. Chicchi, et al.. (2006). NK1 antagonists based on seven membered lactam scaffolds. Bioorganic & Medicinal Chemistry Letters. 16(11). 2929–2932. 15 indexed citations
14.
Dirat, Olivier, et al.. (2006). Regioselective synthesis of 4-(2-alkyl-5-methyl-2H-pyrazol-3-yl)-piperidines. Tetrahedron Letters. 47(11). 1729–1731. 22 indexed citations
15.
Hollingworth, Gregory J., Emma Carlson, José L. Castro, et al.. (2005). Novel lactam NK1 antagonists with anti-emetic activity. Bioorganic & Medicinal Chemistry Letters. 16(5). 1197–1201. 1 indexed citations
16.
Trost, Barry M., Olivier Dirat, & Janet L. Gunzner. (2002). Callipeltoside A: Assignment of Absolute and Relative Configuration by Total Synthesis We thank the National Science Foundation and the National Institutes of Health for their generous support of our programs. OD was supported in part by a fellowship from the Association pour la Recherche contre le Cancer (ARC). J.L.G. was supported in part by a NIH postdoctoral fellowship from the National Cancer Institute. Mass spectra were provided by the Mass Spectroscopy Facility at the University of California, San Francisco supported by the NIH Division of Research Resources, and the Mass Spectrometry Facility at University of California, Irvine. We thank Dr. John Greaves of the latter facility for his assistance.. Angewandte Chemie International Edition. 41(5). 841–841. 55 indexed citations
17.
Trost, Barry M., et al.. (2002). Application of the AAA Reaction to the Synthesis of the Furanoside ofC-2-epi-Hygromycin A: A Total Synthesis ofC-2-epi-Hygromycin A. Chemistry - A European Journal. 8(1). 259–268. 24 indexed citations
18.
19.
Dirat, Olivier, Cyrille Kouklovsky, Marc Mauduit, & Yves Langlois. (2000). Oxazoline-N-oxide mediated asymmetric cycloadditions. Recent progress in the stereo-selective syntheses of β-lactones and β-lactams. Pure and Applied Chemistry. 72(9). 1721–1737. 10 indexed citations
20.
Dirat, Olivier, Thierry Vidal, & Yves Langlois. (1999). A new route to C-glycosylidene compounds mediated by olefin metathesis. Tetrahedron Letters. 40(26). 4801–4802. 26 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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