Tobias Stopka

531 total citations
14 papers, 435 citations indexed

About

Tobias Stopka is a scholar working on Organic Chemistry, Molecular Biology and Pharmacology. According to data from OpenAlex, Tobias Stopka has authored 14 papers receiving a total of 435 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Organic Chemistry, 2 papers in Molecular Biology and 2 papers in Pharmacology. Recurrent topics in Tobias Stopka's work include Catalytic C–H Functionalization Methods (10 papers), Catalytic Alkyne Reactions (4 papers) and Asymmetric Synthesis and Catalysis (3 papers). Tobias Stopka is often cited by papers focused on Catalytic C–H Functionalization Methods (10 papers), Catalytic Alkyne Reactions (4 papers) and Asymmetric Synthesis and Catalysis (3 papers). Tobias Stopka collaborates with scholars based in Germany, Austria and Spain. Tobias Stopka's co-authors include Olga Garcı́a Mancheño, Meike Niggemann, Heinrich Richter, Nuno Maulide, Shuang Gao, E.‐U. Würthwein, Constantin G. Daniliuc, Mercedes Zurro, Leyre Marzo and José Alemán and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Chemical Communications.

In The Last Decade

Tobias Stopka

14 papers receiving 430 citations

Peers

Tobias Stopka

PHARM

Kristofer Olofsson Sweden

Begur Vasanthkumar Varun India

Kenji Azechi Japan

Christian Maaß Germany

François Le Callonnec France

Nibadita Purkait Sweden

Pinku Kaswan India

Benjamin C. Milgram United States

Aneesh Antony India

Adam R. Lacy United Kingdom

Kristofer Olofsson Sweden

Tobias Stopka

354 ×0.8

77 ×1.1

56 ×1.2

13 ×1.0

12 ×1.3

PHARM

Citations per year, relative to Tobias Stopka Tobias Stopka (= 1×) peers Kristofer Olofsson

Countries citing papers authored by Tobias Stopka

Since Specialization

Citations

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

Fields of papers citing papers by Tobias Stopka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tobias Stopka

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

All Works

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14 of 14 papers shown

Stopka, Tobias, et al.. (2023). Isothiouronium-Mediated Conversion of Carboxylic Acids to Cyanomethyl Thioesters. The Journal of Organic Chemistry. 88(6). 3941–3944. 6 indexed citations

Merad, Jérémy, Phillip Grant, Tobias Stopka, et al.. (2022). Direct Stereodivergent Olefination of Carbonyl Compounds with Sulfur Ylides. Journal of the American Chemical Society. 144(27). 12536–12543. 27 indexed citations

Merad, Jérémy, et al.. (2021). Stable and easily available sulfide surrogates allow a stereoselective activation of alcohols. Chemical Science. 12(22). 7770–7774. 17 indexed citations

Stopka, Tobias, et al.. (2020). The unusual migratory aptitude in a case of α-carbonyl cation-driven 1,2-migration. Tetrahedron. 76(51). 131460–131460. 5 indexed citations

Stopka, Tobias, et al.. (2018). Electrophilic Activation of Amides for the Preparation of Polysubstituted Pyrimidines. Synthesis. 51(1). 194–202. 10 indexed citations

Stopka, Tobias, Meike Niggemann, & Nuno Maulide. (2017). α‐Carbonylkationen in Sulfoxid‐vermittelten oxidativen Cyclisierungen. Angewandte Chemie. 129(43). 13454–13458. 6 indexed citations

Stopka, Tobias, Meike Niggemann, & Nuno Maulide. (2017). α‐Carbonyl Cations in Sulfoxide‐Driven Oxidative Cyclizations. Angewandte Chemie International Edition. 56(43). 13270–13274. 29 indexed citations

Stopka, Tobias & Meike Niggemann. (2016). Metal free carboamination of internal alkynes – an easy access to polysubstituted quinolines. Chemical Communications. 52(33). 5761–5764. 34 indexed citations

Stopka, Tobias, Leyre Marzo, Mercedes Zurro, et al.. (2015). Oxidative CH Bond Functionalization and Ring Expansion with TMSCHN₂: A Copper(I)‐Catalyzed Approach to Dibenzoxepines and Dibenzoazepines. Angewandte Chemie International Edition. 54(17). 5049–5053. 49 indexed citations

10.

Stopka, Tobias & Meike Niggemann. (2015). Cyclopentanone as a Cation-Stabilizing Electron-Pair Donor in the Calcium-Catalyzed Intermolecular Carbohydroxylation of Alkynes. Organic Letters. 17(6). 1437–1440. 37 indexed citations

11.

Gao, Shuang, Tobias Stopka, & Meike Niggemann. (2015). Calcium-Catalyzed Dynamic Multicomponent Reaction. Organic Letters. 17(20). 5080–5083. 23 indexed citations

12.

Stopka, Tobias, Leyre Marzo, Mercedes Zurro, et al.. (2015). Oxidative C‐H‐Funktionalisierung und Ringerweiterung mit TMSCHN₂: ein Kupfer(I)‐katalysierter Zugang zu Dibenzoxepinen und Dibenzazepinen. Angewandte Chemie. 127(17). 5137–5141. 10 indexed citations

13.

Stopka, Tobias, et al.. (2013). Iron-Catalyzed Oxidative Tandem Reactions with TEMPO Oxoammonium Salts: Synthesis of Dihydroquinazolines and Quinolines. The Journal of Organic Chemistry. 78(12). 6050–6064. 130 indexed citations

14.

Mancheño, Olga Garcı́a & Tobias Stopka. (2013). TEMPO Derivatives as Alternative Mild Oxidants in Carbon-Carbon Coupling Reactions. Synthesis. 45(12). 1602–1611. 52 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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