Hellmut Bredereck

4.8k total citations
163 papers, 3.1k citations indexed

About

Hellmut Bredereck is a scholar working on Organic Chemistry, Molecular Biology and Pharmaceutical Science. According to data from OpenAlex, Hellmut Bredereck has authored 163 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 145 papers in Organic Chemistry, 88 papers in Molecular Biology and 18 papers in Pharmaceutical Science. Recurrent topics in Hellmut Bredereck's work include Chemical Synthesis and Analysis (82 papers), Synthesis and Characterization of Heterocyclic Compounds (30 papers) and Synthesis of heterocyclic compounds (28 papers). Hellmut Bredereck is often cited by papers focused on Chemical Synthesis and Analysis (82 papers), Synthesis and Characterization of Heterocyclic Compounds (30 papers) and Synthesis of heterocyclic compounds (28 papers). Hellmut Bredereck collaborates with scholars based in Germany and Spain. Hellmut Bredereck's co-authors include Franz Effenberger, Gerhard Simchen, R. Gompper, Willi Kantlehner, Karl Bredereck, Adolf Wagner, Kurt Klemm, H. Herlinger, Horst Hoffmann and Wolfgang Pfleiderer and has published in prestigious journals such as Synthesis, Chemische Berichte and Angewandte Chemie.

In The Last Decade

Hellmut Bredereck

163 papers receiving 2.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hellmut Bredereck Germany 29 2.6k 1.0k 206 168 156 163 3.1k
Gerhard Simchen Germany 24 1.9k 0.7× 558 0.5× 213 1.0× 124 0.7× 79 0.5× 128 2.1k
Michael W. Rathke United States 33 2.3k 0.9× 499 0.5× 155 0.8× 167 1.0× 76 0.5× 68 2.7k
H. B. Henbest United Kingdom 26 998 0.4× 587 0.6× 108 0.5× 176 1.0× 87 0.6× 96 1.7k
George Zweifel United States 38 3.2k 1.2× 679 0.7× 205 1.0× 287 1.7× 120 0.8× 110 3.7k
Otto Meth‐Cohn United Kingdom 29 2.5k 1.0× 705 0.7× 119 0.6× 206 1.2× 273 1.8× 203 3.1k
Horst Böhme Germany 22 1.9k 0.7× 504 0.5× 233 1.1× 306 1.8× 215 1.4× 206 2.2k
J. I. G. Cadogan United Kingdom 24 2.6k 1.0× 465 0.4× 126 0.6× 138 0.8× 225 1.4× 219 3.0k
Otohiko Tsuge Japan 25 2.9k 1.1× 565 0.5× 385 1.9× 109 0.6× 133 0.9× 319 3.1k
Thomas H. Fife United States 26 1.2k 0.5× 873 0.8× 115 0.6× 424 2.5× 183 1.2× 111 2.0k
Robert O. Hutchins United States 28 1.7k 0.7× 611 0.6× 137 0.7× 225 1.3× 112 0.7× 69 2.2k

Countries citing papers authored by Hellmut Bredereck

Since Specialization
Citations

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

Fields of papers citing papers by Hellmut Bredereck

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hellmut Bredereck

This figure shows the co-authorship network connecting the top 25 collaborators of Hellmut Bredereck. A scholar is included among the top collaborators of Hellmut Bredereck 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 Hellmut Bredereck. Hellmut Bredereck 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.
Bredereck, Hellmut, et al.. (1974). Orthoamide, XXVI. Synthese und Reaktionen von 1,2‐ Bis(dialkylamino)äthylenen. Chemische Berichte. 107(5). 1545–1554. 17 indexed citations
2.
3.
Bredereck, Hellmut, Gerhard Simchen, & Gerhard Beck. (1971). Orthoamide, XX. Umsetzungen von Amidacetalen und Bis‐dimethylamino‐methoxy‐methan (Aminalester) mit Benzaziden. Chemische Berichte. 104(12). 3794–3803. 4 indexed citations
4.
5.
Bredereck, Hellmut, et al.. (1970). Hydroperoxide cyclischer β‐Diketone1). Justus Liebig s Annalen der Chemie. 739(1). 117–120. 5 indexed citations
6.
Bredereck, Hellmut, et al.. (1968). Orthoamide, VIII Über die Umsetzung aktivierter Methylgruppen an substituierten Toluolen und Heterocyclen mit Aminal‐tert.‐butylester zu Enaminen. Chemische Berichte. 101(12). 4048–4056. 43 indexed citations
7.
Bredereck, Hellmut, et al.. (1968). Orthoamide, III. Umsetzungen von Dialkylformamid‐dialkylacetalen mit Isothiocyanaten. Chemische Berichte. 101(5). 1863–1871. 15 indexed citations
8.
Bredereck, Hellmut & Wolfgang Baumann. (1967). Synthesen in der heterocyclischen Reihe, VIII. Umsetzungen von vic‐Triazolo[4.5‐d]pyrimidinium‐Verbindungen. Synthesen von N.S‐vic‐Triazolo[4.5‐d]pyrimidinium‐betainen. Justus Liebig s Annalen der Chemie. 701(1). 157–165. 1 indexed citations
9.
Bredereck, Hellmut, et al.. (1967). Synthesen in der Purin‐Reihe, XVIII. Purin‐Synthesen mit 4‐Amino‐5‐alkyl(aryl)amino‐pyrimidinen. Über 4.5‐Dihydroxy‐pyrimidin. Chemische Berichte. 100(7). 2280–2291. 3 indexed citations
10.
Bredereck, Hellmut, et al.. (1965). Über N‐Isocyan‐dialkylamine. Justus Liebig s Annalen der Chemie. 686(1). 92–101. 33 indexed citations
11.
Bredereck, Hellmut, Franz Effenberger, & Gerhard Simchen. (1965). Säureamid‐Reaktionen, XLVI: Synthese von N.N.N′‐Trimethyl‐formamidin und Bis‐dimethylamino‐methoxy‐methan (Aminalester). Chemische Berichte. 98(4). 1078–1080. 42 indexed citations
12.
Bredereck, Hellmut, et al.. (1964). Säureamid‐Reaktionen, XXXIV. 7‐Substituierte Purine und ihre Aufspaltung zu 4.5‐Diamino‐pyrimidinen. Justus Liebig s Annalen der Chemie. 673(1). 82–87. 13 indexed citations
13.
Bredereck, Hellmut, et al.. (1962). Säureamid‐Reaktionen, XXX. Synthesen von Pyrazolo)[3.4‐d]pyrimidinen. Chemische Berichte. 95(11). 2796–2802. 6 indexed citations
14.
Bredereck, Hellmut, R. Gompper, Kurt Klemm, & Baldur Föhlisch. (1961). Säureamid‐Reaktionen, XXVIII. Über eine neue Synthese von 2‐Dimethylamino‐chinolinen. Chemische Berichte. 94(11). 3119–3128. 7 indexed citations
15.
Bredereck, Hellmut, et al.. (1960). Säureamid‐Reaktionen, XVIII. Darstellung 5‐mono‐ und 4.5‐disubstituierter Pyrimidine. Chemische Berichte. 93(1). 230–235. 27 indexed citations
16.
Bredereck, Hellmut, et al.. (1960). Ringaufspaltung von Oxazolen mit 2.4‐Dinitrophenylhydrazin. Chemische Berichte. 93(9). 2010–2015. 8 indexed citations
17.
Bredereck, Hellmut, et al.. (1959). Formamid‐Reaktionen, XII. Alkylierungs‐ und Acylierungsreaktionen an Formamid: Tris‐formylamino‐methan. Chemische Berichte. 92(2). 329–337. 39 indexed citations
18.
Bredereck, Hellmut, et al.. (1956). Purin aus Formamid. Methylierung und Bromierung des Purins (Synthesen in der Purinreihe, VII. Mitteil.). Chemische Berichte. 89(1). 12–18. 21 indexed citations
19.
Bredereck, Hellmut & Wolfgang Pfleiderer. (1954). Über die Kondensation von Dimethyl‐alloxan mit o‐Phenylendiamin. Chemische Berichte. 87(8). 1119–1123. 21 indexed citations
20.
Bredereck, Hellmut, et al.. (1954). Chromatographische Trennungen acetylierter Mono‐ und Disaccharide. Chemische Berichte. 87(4). 526–531. 4 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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