Jan Hamer

1.1k total citations · 1 hit paper
23 papers, 863 citations indexed

About

Jan Hamer is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Control and Systems Engineering. According to data from OpenAlex, Jan Hamer has authored 23 papers receiving a total of 863 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Organic Chemistry, 3 papers in Physical and Theoretical Chemistry and 2 papers in Control and Systems Engineering. Recurrent topics in Jan Hamer's work include Synthesis and Biological Evaluation (5 papers), Chemical Reaction Mechanisms (4 papers) and Inorganic and Organometallic Chemistry (3 papers). Jan Hamer is often cited by papers focused on Synthesis and Biological Evaluation (5 papers), Chemical Reaction Mechanisms (4 papers) and Inorganic and Organometallic Chemistry (3 papers). Jan Hamer collaborates with scholars based in United States. Jan Hamer's co-authors include Anthony Macaluso, Joseph H. Boyer, W. Harmon Ray, Mushtaq Ahmad, A. Mushtaq, H. S. Gutowsky, Glenn Finger, William J. Link, Tyrone L. Vigo and James B. Rawlings and has published in prestigious journals such as Chemical Reviews, Journal of the American Chemical Society and The Journal of Organic Chemistry.

In The Last Decade

Jan Hamer

23 papers receiving 804 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Nitrones

1964 354 citations Jan Hamer, Anthony Macaluso Chemical Reviews profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jan Hamer United States	12	617	202	108	73	63	23	863
Concetta Kascheres Brazil	15	538 0.9×	83 0.4×	52 0.5×	47 0.6×	10 0.2×	36	748
Boguslaw Mudryk United States	17	553 0.9×	133 0.7×	44 0.4×	46 0.6×	28 0.4×	35	669
Alfons Weise Germany	10	298 0.5×	85 0.4×	26 0.2×	52 0.7×	10 0.2×	29	487
Norman Lewis United Kingdom	25	1.1k 1.7×	367 1.8×	48 0.4×	26 0.4×	22 0.3×	62	1.4k
G. Opitz Germany	19	988 1.6×	270 1.3×	123 1.1×	96 1.3×	4 0.1×	79	1.3k
David R. Dalton United States	16	556 0.9×	248 1.2×	47 0.4×	54 0.7×	5 0.1×	81	937
George Zhou United States	17	310 0.5×	187 0.9×	110 1.0×	42 0.6×	48 0.8×	41	962
Alexander G. O’Brien United States	14	910 1.5×	237 1.2×	232 2.1×	35 0.5×	28 0.4×	22	1.3k
Arthur Cammarata United States	15	253 0.4×	169 0.8×	17 0.2×	66 0.9×	6 0.1×	30	611
M. P. SERVE United States	11	189 0.3×	80 0.4×	25 0.2×	60 0.8×	7 0.1×	53	530

Countries citing papers authored by Jan Hamer

Since Specialization

Citations

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

Fields of papers citing papers by Jan Hamer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jan Hamer

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Rawlings, James B., et al.. (1989). End-Point Control in Semi-Batch Chemical Reactors. IFAC Proceedings Volumes. 22(8). 339–344. 9 indexed citations

2.

Hamer, Jan & W. Harmon Ray. (1986). Continuous tubular polymerization reactors—I.A detailed model. Chemical Engineering Science. 41(12). 3083–3093. 25 indexed citations

3.

Hamer, Jan, et al.. (1981). The dynamic behavior of continuous polymerization reactors—II Nonisothermal solution homopolymerization and copolymerization in a CSTR. Chemical Engineering Science. 36(12). 1897–1914. 110 indexed citations

4.

Hamer, Jan, et al.. (1968). Conformational isomerization in hexahydro-s-triazines and hexahydropyrimidines. Tetrahedron. 24(2). 829–835. 7 indexed citations

5.

Hamer, Jan, et al.. (1967). 1,2-cycloaddition reactions : the formation of three- and four- membered heterocycles. Bulletin of Miscellaneous Information (Royal Gardens Kew). 1 indexed citations

6.

Hamer, Jan, et al.. (1967). Addition of N-sulfinylaniline to bicycloalkenes. The Journal of Organic Chemistry. 32(2). 506–507. 11 indexed citations

7.

Hamer, Jan, et al.. (1966). Asymmetric Induction in a 1,4-Cycloaddition Reaction. Influence of Variation of Configuration of the Asymmetric Center. The Journal of Organic Chemistry. 31(7). 2418–2419. 48 indexed citations

8.

Ahmad, Mushtaq & Jan Hamer. (1966). The Addition of Aromatic Nitroso Compounds to Conjugated Dienes. II. The Journal of Organic Chemistry. 31(9). 2829–2831. 12 indexed citations

9.

Hamer, Jan, et al.. (1966). The 1,4-Cycloaddition Reaction between N-Sulfinylbenzenesulfonamide and 1,3-Cyclopentadiene. An Equilibrium Study. The Journal of Organic Chemistry. 31(9). 3049–3050. 8 indexed citations

10.

Ahmad, Mushtaq & Jan Hamer. (1966). The Addition of Aromatic Nitroso Compounds to Conjugated Dienes. III. Effect of Solvent on Reaction Rates and Equilibrium Constant. The Journal of Organic Chemistry. 31(9). 2831–2833. 10 indexed citations

11.

Hamer, Jan. (1966). The susceptibility of 2,3‐difluoroquinoxaline towards nucleophilic aromatic substitution. Journal of Heterocyclic Chemistry. 3(2). 244–244. 2 indexed citations

12.

Hamer, Jan, et al.. (1964). A pseudo first-order-second-order kinetics experiment: An illustration of the Guggenheim method. Journal of Chemical Education. 41(5). 249–249. 8 indexed citations

13.

Hamer, Jan & Anthony Macaluso. (1964). Nitrones. Chemical Reviews. 64(4). 473–495. 354 indexed citations breakdown →

14.

Hamer, Jan, et al.. (1963). On the Reduction of Quinoxaline. The Journal of Organic Chemistry. 28(9). 2488–2488. 10 indexed citations

15.

Hamer, Jan, et al.. (1963). The Addition of Aromatic Nitroso Compounds to Conjugated Dienes. The Journal of Organic Chemistry. 28(11). 3034–3036. 22 indexed citations

16.

Hamer, Jan, et al.. (1963). The reaction between nitrosobenzenes and alkenes. Tetrahedron Letters. 4(6). 381–384. 8 indexed citations

17.

Finger, Glenn, et al.. (1963). Aromatic Fluorine Compounds. XI. Replacement of Chlorine by Fluorine in Halopyridines. The Journal of Organic Chemistry. 28(6). 1666–1668. 34 indexed citations

18.

Hamer, Jan, et al.. (1962). Preparation of 2‐fluoroquinoline and 2,6‐difluoropyridine by halogen exchange. Recueil des Travaux Chimiques des Pays-Bas. 81(12). 1058–1060. 23 indexed citations

19.

Boyer, Joseph H., et al.. (1956). Acid-catalyzed Reactions of Aliphatic Azides¹. Journal of the American Chemical Society. 78(2). 325–327. 42 indexed citations

20.

Boyer, Joseph H. & Jan Hamer. (1955). The Acid-catalyzed Reaction of Alkyl Azides upon Carbonyl Compounds¹. Journal of the American Chemical Society. 77(4). 951–954. 101 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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