J. Trojánek

705 total citations
69 papers, 463 citations indexed

About

J. Trojánek is a scholar working on Organic Chemistry, Molecular Biology and Pharmacology. According to data from OpenAlex, J. Trojánek has authored 69 papers receiving a total of 463 indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Organic Chemistry, 20 papers in Molecular Biology and 19 papers in Pharmacology. Recurrent topics in J. Trojánek's work include Alkaloids: synthesis and pharmacology (16 papers), Chemical synthesis and alkaloids (16 papers) and Plant-based Medicinal Research (10 papers). J. Trojánek is often cited by papers focused on Alkaloids: synthesis and pharmacology (16 papers), Chemical synthesis and alkaloids (16 papers) and Plant-based Medicinal Research (10 papers). J. Trojánek collaborates with scholars based in Czechia and United States. J. Trojánek's co-authors include Josef Hájíček, M. Tin‐Wa, Donald J. Abraham, Harry H. S. Fong, Z. Čekan, N.R. Farnsworth, K. Bláha, J. HOLUBEK, Ajay K. Bose and Kalpataru Das and has published in prestigious journals such as Phytochemistry, Journal of Pharmaceutical Sciences and Tetrahedron Letters.

In The Last Decade

J. Trojánek

63 papers receiving 427 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Trojánek Czechia	12	255	169	168	68	67	69	463
P.C. Parthasarathy India	16	162 0.6×	114 0.7×	242 1.4×	103 1.5×	79 1.2×	35	513
R Goutarel France	15	335 1.3×	165 1.0×	331 2.0×	64 0.9×	100 1.5×	81	720
G. LUKACS France	13	281 1.1×	83 0.5×	274 1.6×	86 1.3×	47 0.7×	36	529
N.P. Damodaran India	13	237 0.9×	137 0.8×	181 1.1×	49 0.7×	15 0.2×	24	514
K. W. Gopinath India	13	189 0.7×	80 0.5×	166 1.0×	51 0.8×	59 0.9×	26	385
Christiane Kan‐Fan France	15	367 1.4×	264 1.6×	225 1.3×	72 1.1×	107 1.6×	38	607
AA Sioumis Australia	15	163 0.6×	79 0.5×	232 1.4×	49 0.7×	131 2.0×	51	521
D. Dwuma-Badu Ghana	13	167 0.7×	153 0.9×	220 1.3×	90 1.3×	124 1.9×	31	474
Shojiro Uyeo Japan	16	575 2.3×	283 1.7×	199 1.2×	132 1.9×	31 0.5×	93	822
H.‐P. HUSSON France	17	336 1.3×	172 1.0×	237 1.4×	45 0.7×	64 1.0×	49	668

Countries citing papers authored by J. Trojánek

Since Specialization

Citations

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

Fields of papers citing papers by J. Trojánek

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Trojánek

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

All Works

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20 of 20 papers shown

HOLUBEK, J., et al.. (1985). Attempts at the synthesis of 11-methoxysubstituted benzo[c]phenantridines. Collection of Czechoslovak Chemical Communications. 50(4). 861–868. 2 indexed citations

Hájíček, Josef, J. HOLUBEK, & J. Trojánek. (1982). Synthesis of 4,4- and 5,5-disubstituted 4,5-dihydro-6H-canthin-6-ones. Collection of Czechoslovak Chemical Communications. 47(10). 2749–2762. 3 indexed citations

Hájíček, Josef & J. Trojánek. (1982). Synthesis of optically active 4,4- and 5,5-disubstituted 4,5-dihydro-6H-canthin-6-ones and their CD spectra. Collection of Czechoslovak Chemical Communications. 47(12). 3306–3311. 3 indexed citations

Bláha, K., et al.. (1974). Chiroptical investigations on the iboga and voacanga alkaloids. Collection of Czechoslovak Chemical Communications. 39(8). 2258–2266. 14 indexed citations

Abraham, Donald J., et al.. (1971). Structure Elucidation of Maytenonic Acid, a New Triterpene from Maytenus Senegalensis (Celastraceae). Journal of Pharmaceutical Sciences. 60(7). 1085–1087. 13 indexed citations

Tin‐Wa, M., et al.. (1970). Catharanthus alkaloids. XXV. Isolation of leurosine and ursolic acid from C. pusillus.. PubMed. 33(2). 261–3. 1 indexed citations

Trojánek, J., et al.. (1968). Steroid derivatives. LI. Reductive elimination of vinyl halogen in androstane series. Collection of Czechoslovak Chemical Communications. 33(1). 76–82. 3 indexed citations

Bláha, K., et al.. (1968). On alkaloids. XX. Absolute configuration of alkaloids of the eburnane series; Optical rotatory dispersion. Collection of Czechoslovak Chemical Communications. 33(11). 3833–3847. 5 indexed citations

Trojánek, J., et al.. (1968). On alkaloids. XIX. Absolute configuration of vincamine and some related alkaloids; Optical rotatory dispersion. Collection of Czechoslovak Chemical Communications. 33(9). 2950–2961. 4 indexed citations

10.

Trojánek, J., et al.. (1966). The absolute configuration of (+)-1,2,3,4-tetrahydroharmine.. PubMed. 31. 1342–1342. 1 indexed citations

11.

Trojánek, J., et al.. (1964). On alkaloids. XII. Structure of vincaminorine and vincaminoreine. Collection of Czechoslovak Chemical Communications. 29(8). 1904–1912. 2 indexed citations

12.

Trojánek, J., et al.. (1963). On alkaloids. VIII. Structure of vindorosine. Collection of Czechoslovak Chemical Communications. 28(6). 1427–1433. 11 indexed citations

13.

Čekan, Z., et al.. (1962). Steroid–Derivate XVIII¹. Planta Medica. 10(3). 318–326. 5 indexed citations

14.

Trojánek, J., et al.. (1962). Über Alkaloide VI. Vincaminin und Vincinin, zwei neue Alkaloide aus Vinca minor L.. Collection of Czechoslovak Chemical Communications. 27(12). 2801–2807. 2 indexed citations

15.

Trojánek, J., et al.. (1961). Über N-Alkylcamphidine. Collection of Czechoslovak Chemical Communications. 26(11). 2921–2932. 4 indexed citations

16.

Trojánek, J.. (1961). ZUR BIOGENESE DER MUTTERKORNALKALOIDE. Planta Medica. 9(3). 219–221. 2 indexed citations

17.

Trojánek, J., et al.. (1961). Über Alkylderivate der stereoisomeren 2-Aminocamphane. Collection of Czechoslovak Chemical Communications. 26(10). 2602–2611. 3 indexed citations

18.

Trojánek, J., et al.. (1961). Über Alkaloide IV. Über die Isolierung von Vincin, eines neuen Alkaloids aus Vinca minor L.. Collection of Czechoslovak Chemical Communications. 26(3). 867–873. 9 indexed citations

19.

Trojánek, J., et al.. (1960). Über Alkaloide III. Neue Alkaloide aus immergrün Vinca minor L.. Collection of Czechoslovak Chemical Communications. 25(8). 2045–2048. 6 indexed citations

20.

Trojánek, J., et al.. (1959). Vincaminorin, ein neues Alkaloid des Immergrüns (Vinca minor L.). Collection of Czechoslovak Chemical Communications. 24(2). 526–529. 8 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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