Marian Keppens

414 total citations
18 papers, 345 citations indexed

About

Marian Keppens is a scholar working on Organic Chemistry, Spectroscopy and Pharmaceutical Science. According to data from OpenAlex, Marian Keppens has authored 18 papers receiving a total of 345 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Organic Chemistry, 3 papers in Spectroscopy and 2 papers in Pharmaceutical Science. Recurrent topics in Marian Keppens's work include Chemical synthesis and alkaloids (5 papers), Synthesis of heterocyclic compounds (4 papers) and Advanced Synthetic Organic Chemistry (3 papers). Marian Keppens is often cited by papers focused on Chemical synthesis and alkaloids (5 papers), Synthesis of heterocyclic compounds (4 papers) and Advanced Synthetic Organic Chemistry (3 papers). Marian Keppens collaborates with scholars based in Belgium, Bulgaria and Belarus. Marian Keppens's co-authors include Norbert De Kimpe, Christian V. Stevens, Oleg G. Kulinkovich, Dieter Enders, Guy Smagghe, J. Tiebes, Oliver B. Betz, Dirk De Smaele, Angelina Georgieva and Elena Stanoeva and has published in prestigious journals such as Chemical Communications, Journal of Agricultural and Food Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Marian Keppens

17 papers receiving 330 citations

Peers

Marian Keppens

BIOTE

Arthur S. Howard South Africa

Toshio Kurihara Japan

Clément Denhez France

Y. YUASA Japan

Zerrin İncesu Türkiye

Zhiyu Shao China

Xiao‐Yan Tian China

Irum Sehar India

Mubeen Rani Pakistan

M. B. M. DE AZEVEDO Brazil

Arthur S. Howard South Africa

Marian Keppens

301 ×1.2

88 ×1.3

45 ×0.8

15 ×0.5

16 ×0.7

BIOTE

Citations per year, relative to Marian Keppens Marian Keppens (= 1×) peers Arthur S. Howard

Countries citing papers authored by Marian Keppens

Since Specialization

Citations

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

Fields of papers citing papers by Marian Keppens

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Marian Keppens

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

All Works

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18 of 18 papers shown

Adrian, James C., et al.. (1998). A new approach to symmetric 2,2′:6′,2″-terpyridines. Tetrahedron. 54(11). 2365–2370. 13 indexed citations

Kimpe, Norbert De, et al.. (1997). ChemInform Abstract: Synthesis of 2‐Imino‐4‐thiazolines, 2‐Imino‐4‐alkoxythiazolidines, Thiazoles, and 4‐Imidazolin‐2‐ones from α‐Halomethyl Ketimines.. ChemInform. 28(1). 2 indexed citations

Kimpe, Norbert De & Marian Keppens. (1996). Novel Syntheses of the Major Flavor Components of Bread and Cooked Rice. Journal of Agricultural and Food Chemistry. 44(6). 1515–1519. 31 indexed citations

Kimpe, Norbert De, et al.. (1996). Synthesis of 2‐imino‐4‐thiazolines, 2‐imino‐4‐alkoxythiazolidines, thiazoles and 4‐imidazolin‐2‐ones from α‐halomethyl ketimines. Journal of Heterocyclic Chemistry. 33(4). 1179–1183. 17 indexed citations

Kimpe, Norbert De, et al.. (1996). A new efficient synthesis of pyridines. Chemical Communications. 635–635. 47 indexed citations

Keppens, Marian, et al.. (1996). Synthesis of 2-Aryl-1-pyrrolines from Arylnitriles. Synthetic Communications. 26(16). 3097–3102. 1 indexed citations

Kulinkovich, Oleg G., et al.. (1996). New synthetic route to the alkaloid withasomnine by ring transformation of a functionalized cyclopropanol via the parent pyrrolo[1,2-b]pyrazole. Tetrahedron Letters. 37(7). 1095–1096. 32 indexed citations

Kimpe, Norbert De & Marian Keppens. (1996). Novel routes to indoles, indolines, quinolines and tetrahydroquinolines from N-(Cyclohexylidene)amines. Tetrahedron. 52(10). 3705–3718. 35 indexed citations

Kimpe, Norbert De, et al.. (1995). Cyclocondensation of N-(2-Bromoethyl)phtalimide with the Dianion of Isobutyric Acid to a Functionalized 2,3-Dihydrooxazolo[2,3-a]isoindol-5(9bH)-one Derivative.. Journal of Chemical Research Synopses. 6(6). 252–253.

10.

Keppens, Marian & Norbert De Kimpe. (1995). Enantioselective Total Syntheses of the Nitraria Alkaloids (-)-Nitramine and (+)-Isonitramine. The Journal of Organic Chemistry. 60(12). 3916–3918. 23 indexed citations

11.

Kimpe, Norbert De, Elena Stanoeva, Angelina Georgieva, Marian Keppens, & Oleg G. Kulinkovich. (1995). A CONVENIENT SYNTHESIS OF δ-CONICEINE. Organic Preparations and Procedures International. 27(6). 674–678. 5 indexed citations

12.

Georgieva, Angelina, Elena Stanoeva, Stefan L. Spassov, et al.. (1995). Cyclocondensations of homophthalic anhydrides with 1-aza-1,3-dienes. Tetrahedron. 51(21). 6099–6114. 25 indexed citations

13.

Boelens, Jaap Jan, Norbert De Kimpe, Marian Keppens, & Jean‐Paul Declercq. (1994). Proof of the Stereochemistry of cis-2,5-Dibromocyclopentanone. The Journal of Organic Chemistry. 59(15). 4170–4171. 1 indexed citations

14.

Enders, Dieter, J. Tiebes, Norbert De Kimpe, et al.. (1994). ChemInform Abstract: Enantioselective Synthesis and Determination of the Configuration of Stenusine, the Spreading Agent of the Beetle Stenus comma.. ChemInform. 25(1). 1 indexed citations

15.

Keppens, Marian & Norbert De Kimpe. (1994). Diastereoselective Total Synthesis of Sibirine via Functionalized Imine Precursors. Synlett. 1994(4). 285–286. 6 indexed citations

16.

Keppens, Marian, et al.. (1994). On the Hodge mechanism of the formation of the bread flavor component 6-acetyl-1,2,3,4-tetrahydropyridine from proline and sugars. Journal of Agricultural and Food Chemistry. 42(8). 1739–1742. 9 indexed citations

17.

Stevens, Christian V., et al.. (1993). Synthesis of 2-acetyl-1-pyrroline, the principal rice flavor component. Journal of Agricultural and Food Chemistry. 41(9). 1458–1461. 54 indexed citations

18.

Enders, Dieter, J. Tiebes, Norbert De Kimpe, et al.. (1993). Enantioselective synthesis and determination of the configuration of stenusine, the spreading agent of the beetle Stenus comma. The Journal of Organic Chemistry. 58(18). 4881–4884. 43 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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