This map shows the geographic impact of H. G. VIEHE'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 H. G. VIEHE with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. G. VIEHE more than expected).
This network shows the impact of papers produced by H. G. VIEHE. 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 H. G. VIEHE. The network helps show where H. G. VIEHE may publish in the future.
Co-authorship network of co-authors of H. G. VIEHE
This figure shows the co-authorship network connecting the top 25 collaborators of H. G. VIEHE.
A scholar is included among the top collaborators of H. G. VIEHE 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 H. G. VIEHE. H. G. VIEHE 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.
Ryckmans, Thomas, et al.. (1997). The methylation of N-cyano N-methyl hydrazones: A new access to 2-aminoimidazoles through an in situ 1,3,4-triaza cope rearrangement. DIAL (Catholic University of Leuven). 106(9). 553–557.1 indexed citations
2.
Janoušek, Zdeněk, et al.. (1997). Reactions of trifluoromethylated enamines with iminium chlorides and analogues. Synthesis of new 2-aza-1,3-dienes and pyridin-4-ones. Digital Access to Libraries. 134(1). 47–57.
3.
Bouillon, Jean‐Philippe & H. G. VIEHE. (1997). Spiroannelation reactions of 3-(1-hydroxy-2,2,2-trifluoroethylidene)-1-methyl-pyrrolidin-2-one with alkyn- and allenyl methyl ketones. Digital Access to Libraries. 106(12). 803–807.
4.
Janoušek, Zdeněk, et al.. (1996). Synthesis and reactivity of new trifluoromethylated azacyanines starting from 3-(1-amino-2,2,2-trifluororoethylidene)pyrrolidin-2-ones. Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)). 133(5). 501–508.
5.
Bouillon, Jean‐Philippe, Zbyněk Janoušek, & H. G. VIEHE. (1994). Spiroannelation Starting From Beta-trifluoroacetylpyrrolidone. Polish Journal of Chemistry. 68(11). 2315–2322.3 indexed citations
VIEHE, H. G., et al.. (1964). Addition Reactions of Alkynylamines. Angewandte Chemie International Edition in English. 3(8). 581–581.34 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.