Alexander Toepfer

965 total citations
17 papers, 826 citations indexed

About

Alexander Toepfer is a scholar working on Molecular Biology, Organic Chemistry and Immunology and Allergy. According to data from OpenAlex, Alexander Toepfer has authored 17 papers receiving a total of 826 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Molecular Biology, 12 papers in Organic Chemistry and 6 papers in Immunology and Allergy. Recurrent topics in Alexander Toepfer's work include Glycosylation and Glycoproteins Research (13 papers), Carbohydrate Chemistry and Synthesis (12 papers) and Chemical Synthesis and Analysis (8 papers). Alexander Toepfer is often cited by papers focused on Glycosylation and Glycoproteins Research (13 papers), Carbohydrate Chemistry and Synthesis (12 papers) and Chemical Synthesis and Analysis (8 papers). Alexander Toepfer collaborates with scholars based in Germany. Alexander Toepfer's co-authors include Richard R. Schmidt, Michael E. Behrendt, Gerhard Kretzschmar, Thomas J. Martin, Thomas Eisele, Eckart Bartnik, Willy Kinzy, Brigitte Hörsch, Wolfgang Schmidt and Ulrich Sprengard and has published in prestigious journals such as Tetrahedron, Tetrahedron Letters and Carbohydrate Research.

In The Last Decade

Alexander Toepfer

17 papers receiving 788 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Alexander Toepfer Germany	11	726	722	74	74	59	17	826
Makoto Kiso Japan	15	603 0.8×	439 0.6×	46 0.6×	80 1.1×	26 0.4×	27	729
Steven H. van Leeuwen Netherlands	10	1.0k 1.4×	900 1.2×	128 1.7×	35 0.5×	167 2.8×	12	1.3k
Conrad F. Piskorz United States	16	563 0.8×	491 0.7×	104 1.4×	18 0.2×	61 1.0×	47	670
Leena Penttilä Finland	14	532 0.7×	263 0.4×	49 0.7×	180 2.4×	36 0.6×	23	750
Rolf Nuck Germany	13	625 0.9×	296 0.4×	71 1.0×	31 0.4×	36 0.6×	30	783
Thomas Dalik Austria	11	467 0.6×	153 0.2×	113 1.5×	63 0.9×	106 1.8×	12	664
Roger A. O’Neill United States	12	535 0.7×	221 0.3×	81 1.1×	33 0.4×	176 3.0×	16	816
Johanna H. G. M. MUTSAERS Netherlands	13	457 0.6×	234 0.3×	61 0.8×	16 0.2×	68 1.2×	19	543
Kristina Stenvall Sweden	10	409 0.6×	390 0.5×	45 0.6×	14 0.2×	43 0.7×	12	650
Masaaki Numata Japan	13	540 0.7×	496 0.7×	62 0.8×	11 0.1×	27 0.5×	17	572

Countries citing papers authored by Alexander Toepfer

Since Specialization

Citations

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

Fields of papers citing papers by Alexander Toepfer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alexander Toepfer

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

All Works

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17 of 17 papers shown

Kretzschmar, Gerhard, et al.. (1998). Short synthesis of sulfatide- and SQDG-mimetics as small molecular weight selectin inhibitors. Tetrahedron. 54(50). 15189–15198. 4 indexed citations

Toepfer, Alexander & Gerhard Kretzschmar. (1997). ChemInform Abstract: Piperidine Carboxylic Acid Derivatives as Sialyl Lewis X Mimetics.. ChemInform. 28(39). 1 indexed citations

Kretzschmar, Gerhard, et al.. (1997). Pitfalls in the synthesis and biological evaluation of sialyl-LewisX mimetics as potential selectin antagonists. Tetrahedron. 53(7). 2485–2494. 33 indexed citations

Toepfer, Alexander, et al.. (1997). MALONIC ACID DERIVATIVES AS SIALYL LEWIS X MIMETICS. Bioorganic & Medicinal Chemistry Letters. 7(10). 1317–1322. 9 indexed citations

Toepfer, Alexander & Gerhard Kretzschmar. (1997). PIPERIDINE CARBOXYLIC ACID DERIVATIVES AS SIALYL LEWIS X MIMETICS. Bioorganic & Medicinal Chemistry Letters. 7(10). 1311–1316. 13 indexed citations

Eisele, Thomas, Alexander Toepfer, Gerhard Kretzschmar, & Richard R. Schmidt. (1996). Synthesis of a thio-linked analogue of sialyl Lewis X. Tetrahedron Letters. 37(9). 1389–1392. 54 indexed citations

Kretzschmar, Gerhard, Ulrich Sprengard, Horst Kunz, et al.. (1995). Oligosaccharide recognition by selectins: Synthesis and biological activity of multivalent sialyl lewis-X ligands. Tetrahedron. 51(47). 13015–13030. 54 indexed citations

Toepfer, Alexander, Gerhard Kretzschmar, & Eckart Bartnik. (1995). Synthesis of novel mimetics of the sialyl Lewis X determinant. Tetrahedron Letters. 36(50). 9161–9164. 23 indexed citations

Toepfer, Alexander, Willy Kinzy, & Richard R. Schmidt. (1994). Glycosyl Imidates, 65. Efficient synthesis of the Lewis antigen X (Le^x) family. Liebigs Annalen der Chemie. 1994(5). 449–464. 43 indexed citations

10.

Martin, Thomas J., et al.. (1993). Synthesis of phosphites and phosphates of neuraminic acid and their glycosyl donor properties ? convenient synthesis of GM3. Glycoconjugate Journal. 10(1). 16–25. 79 indexed citations

11.

Toepfer, Alexander & Richard R. Schmidt. (1993). A convenient synthesis of N-acetyllactosamine derivatives from lactal. Carbohydrate Research. 247. 159–164. 9 indexed citations

12.

Toepfer, Alexander & Richard R. Schmidt. (1993). An Efficient Synthesis of the Lewis A (Le^a) Antigen Pentasaccharide Moiety. Journal of Carbohydrate Chemistry. 12(7). 809–822. 35 indexed citations

13.

Toepfer, Alexander & Richard R. Schmidt. (1992). An efficient synthesis of the Lewis X (Lex) antigen family. Tetrahedron Letters. 33(36). 5161–5164. 37 indexed citations

14.

Schmidt, Richard R. & Alexander Toepfer. (1991). Glycosylation with highly reactive glycosyl donors: efficiency of the inverse procedure. Tetrahedron Letters. 32(28). 3353–3356. 165 indexed citations

15.

Schmidt, Richard R., Michael E. Behrendt, & Alexander Toepfer. (1991). ChemInform Abstract: Nitriles as Solvents in Glycosylation Reactions: Highly Selective . beta.‐Glycoside Synthesis.. ChemInform. 22(13). 10 indexed citations

16.

Toepfer, Alexander & Richard R. Schmidt. (1990). Muramic acid derivatives as glycosyl donors for the synthesis of muramyl-containing glycosphingolipids and fatty acids. Carbohydrate Research. 202. 193–205. 9 indexed citations

17.

Schmidt, Richard R., Michael E. Behrendt, & Alexander Toepfer. (1990). Nitriles as Solvents in Glycosylation Reactions: Highly Selective β-Glycoside Synthesis¹. Synlett. 1990(11). 694–696. 248 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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