F. UNGEMACH

678 total citations
12 papers, 565 citations indexed

About

F. UNGEMACH is a scholar working on Organic Chemistry, Molecular Biology and Cancer Research. According to data from OpenAlex, F. UNGEMACH has authored 12 papers receiving a total of 565 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Organic Chemistry, 7 papers in Molecular Biology and 3 papers in Cancer Research. Recurrent topics in F. UNGEMACH's work include Carbohydrate Chemistry and Synthesis (4 papers), Synthesis and Biological Activity (3 papers) and Synthesis and bioactivity of alkaloids (2 papers). F. UNGEMACH is often cited by papers focused on Carbohydrate Chemistry and Synthesis (4 papers), Synthesis and Biological Activity (3 papers) and Synthesis and bioactivity of alkaloids (2 papers). F. UNGEMACH collaborates with scholars based in United States and Israel. F. UNGEMACH's co-authors include Thomas M. Harris, Marilyn J. Schneider, Harry P. Broquist, James M. Cook, Dave Soerens, James Hill, Constance M. Harris, Etsuji Yamanaka, J. M. Cook and Richard W. Weber and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Organic Chemistry and Tetrahedron.

In The Last Decade

F. UNGEMACH

12 papers receiving 531 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
F. UNGEMACH United States 8 426 306 95 86 48 12 565
R. N. Mirrington Australia 10 292 0.7× 190 0.6× 85 0.9× 47 0.5× 60 1.3× 29 519
R. H. B. GALT United Kingdom 15 170 0.4× 279 0.9× 87 0.9× 106 1.2× 24 0.5× 32 581
S. Kodato Japan 14 282 0.7× 257 0.8× 82 0.9× 33 0.4× 42 0.9× 16 505
Mikio Taniguchi Japan 14 431 1.0× 209 0.7× 64 0.7× 28 0.3× 34 0.7× 27 589
Yoshitatsu Ichihara Japan 14 380 0.9× 357 1.2× 107 1.1× 61 0.7× 142 3.0× 22 748
Youichi Uosaki Japan 14 179 0.4× 274 0.9× 147 1.5× 57 0.7× 69 1.4× 25 473
Jean M. Schmidt United States 5 299 0.7× 273 0.9× 120 1.3× 49 0.6× 67 1.4× 5 550
Hideyuki Takenaka Japan 11 255 0.6× 206 0.7× 130 1.4× 22 0.3× 51 1.1× 27 503
Mitsutoshi Yanagiya Japan 17 389 0.9× 250 0.8× 97 1.0× 148 1.7× 136 2.8× 33 654
Ernest Hamel United States 9 336 0.8× 273 0.9× 110 1.2× 38 0.4× 54 1.1× 11 575

Countries citing papers authored by F. UNGEMACH

Since Specialization
Citations

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

Fields of papers citing papers by F. UNGEMACH

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of F. UNGEMACH

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

All Works

12 of 12 papers shown
1.
Harris, Constance M., Marilyn J. Schneider, F. UNGEMACH, James Hill, & Thomas M. Harris. (1988). Biosynthesis of the toxic indolizidine alkaloids slaframine and swainsonine in Rhizoctonia leguminicola: metabolism of 1-hydroxyindolizidines. Journal of the American Chemical Society. 110(3). 940–949. 68 indexed citations
2.
3.
Harris, Thomas M., et al.. (1987). (1S,2R,8aS)-1,2-Dihydroxyindolizidine formation by Rhizoctonia leguminicola, the fungus that produces slaframine and swainsonine. The Journal of Organic Chemistry. 52(14). 3094–3098. 41 indexed citations
4.
Schneider, Marilyn J., F. UNGEMACH, Harry P. Broquist, & Thomas M. Harris. (1983). (1S,2R,8R,8aR)-1,2,8-trihydroxyoctahydroindolizine (swainsonine), an α-mannosidase inhibitor from Rhizoctonia leguminicola. Tetrahedron. 39(1). 29–32. 136 indexed citations
5.
Schneider, Marilyn J., F. UNGEMACH, Harry P. Broquist, & Thomas M. Harris. (1982). Biosynthesis of swainsonine in Rhizoctonia leguminicola. Epimerization at the ring fusion. Journal of the American Chemical Society. 104(24). 6863–6864. 30 indexed citations
6.
UNGEMACH, F., et al.. (1980). General method for the assignment of stereochemistry of 1,3-disubstituted 1,2,3,4-tetrahydro-.beta.-carbolines by carbon-13 spectroscopy. Journal of the American Chemical Society. 102(23). 6976–6984. 95 indexed citations
7.
Soerens, Dave, et al.. (1979). Study of the Pictet-Spengler reaction in aprotic media: synthesis of the .beta.-galactosidase inhibitor, pyridindolol. The Journal of Organic Chemistry. 44(4). 535–545. 118 indexed citations
8.
UNGEMACH, F., et al.. (1979). Stereospecific synthesis of -1,3-disubstituted-1,2,3,4-tetrahydro β-carbolines. Tetrahedron Letters. 20(35). 3225–3228. 14 indexed citations
9.
Soerens, Dave, et al.. (1979). Additions and Corrections: Study of the Pictet-Spengler Reaction in Aprotic Media: Synthesis of the β-Galactosidase Inhibitor, Pyridinolol. The Journal of Organic Chemistry. 44(21). 3740–3740. 1 indexed citations
10.
UNGEMACH, F. & James M. Cook. (1978). ChemInform Abstract: THE SPIROINDOLENINE INTERMEDIATE. A REVIEW. Chemischer Informationsdienst. 9(49). 2 indexed citations
11.
Cook, James M. & F. UNGEMACH. (1978). The Spiroindolenine Intermediate, a Review. Heterocycles. 9(8). 1089–1089. 56 indexed citations
12.
Soerens, Dave, et al.. (1976). ChemInform Abstract: PICTET‐SPENGLER CONDENSATIONS IN REFLUXING BENZENE. Chemischer Informationsdienst. 7(44). 3 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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