Leo J. Romanczyk

1.1k total citations
17 papers, 821 citations indexed

About

Leo J. Romanczyk is a scholar working on Organic Chemistry, Pathology and Forensic Medicine and Molecular Biology. According to data from OpenAlex, Leo J. Romanczyk has authored 17 papers receiving a total of 821 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Organic Chemistry, 5 papers in Pathology and Forensic Medicine and 4 papers in Molecular Biology. Recurrent topics in Leo J. Romanczyk's work include Tea Polyphenols and Effects (5 papers), Synthesis of Organic Compounds (4 papers) and Bioactive Compounds and Antitumor Agents (3 papers). Leo J. Romanczyk is often cited by papers focused on Tea Polyphenols and Effects (5 papers), Synthesis of Organic Compounds (4 papers) and Bioactive Compounds and Antitumor Agents (3 papers). Leo J. Romanczyk collaborates with scholars based in United States, Brazil and United Kingdom. Leo J. Romanczyk's co-authors include Alan P. Kozikowski, Werner Tückmantel, Eugene Rogers, Robert J. Nicolosi, John F. Hammerstone, Laurie Post, Danica Ramljak, Nicole Thompson, Vladimir Knežević and Robert B. Dickson and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Agricultural and Food Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Leo J. Romanczyk

16 papers receiving 770 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Leo J. Romanczyk United States	14	287	214	209	179	178	17	821
D. Guédon France	11	216 0.8×	164 0.8×	167 0.8×	166 0.9×	116 0.7×	16	733
Vincenzo Gentili Italy	11	520 1.8×	228 1.1×	175 0.8×	122 0.7×	90 0.5×	12	988
Dušanka Davidović-Amić Croatia	8	401 1.4×	228 1.1×	238 1.1×	176 1.0×	64 0.4×	11	920
Mariken J. T. J. Arts Netherlands	7	653 2.3×	266 1.2×	261 1.2×	360 2.0×	179 1.0×	7	1.2k
Arosha N. Wijewickreme Canada	12	340 1.2×	87 0.4×	467 2.2×	203 1.1×	328 1.8×	14	1.2k
Shanggong Yu United States	14	265 0.9×	71 0.3×	372 1.8×	182 1.0×	143 0.8×	22	933
Shin-ichi Kayano Japan	13	397 1.4×	87 0.4×	288 1.4×	212 1.2×	78 0.4×	20	925
Francisco A. M. Silva Portugal	8	267 0.9×	230 1.1×	175 0.8×	160 0.9×	45 0.3×	11	719
Wouter J.C. de Bruijn Netherlands	17	258 0.9×	88 0.4×	380 1.8×	154 0.9×	204 1.1×	41	959
S. Rafat Husain India	7	365 1.3×	279 1.3×	216 1.0×	134 0.7×	77 0.4×	13	839

Countries citing papers authored by Leo J. Romanczyk

Since Specialization

Citations

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

Fields of papers citing papers by Leo J. Romanczyk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Leo J. Romanczyk

This figure shows the co-authorship network connecting the top 25 collaborators of Leo J. Romanczyk. A scholar is included among the top collaborators of Leo J. Romanczyk 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 Leo J. Romanczyk. Leo J. Romanczyk 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:

17 of 17 papers shown

Franz, James A., et al.. (2024). An outbreak of renal failure in asian dogs due to s-triazine adulteration of pet food raw material: Analysis of unique, green kidney stones formed as a result. Food and Chemical Toxicology. 191. 114878–114878.

Sharma, Pradeep, et al.. (2015). Total Synthesis of Proanthocyanidin A1, A2, and Their Stereoisomers. Organic Letters. 17(10). 2306–2309. 17 indexed citations

Romanczyk, Leo J., et al.. (2010). Synthesis of [2‐¹³C, 4‐¹³C]‐(2R,3S)‐catechin and [2‐¹³C, 4‐¹³C]‐(2R,3R)‐epicatechin. Journal of Labelled Compounds and Radiopharmaceuticals. 53(10). 605–612. 13 indexed citations

Actis‐Goretta, Lucas, et al.. (2008). Cytotoxic effects of digalloyl dimer procyanidins in human cancer cell lines. The Journal of Nutritional Biochemistry. 19(12). 797–808.e2. 35 indexed citations

Sharma, Pradeep, Alexander G. Kolchinski, Hélène A. Shea, et al.. (2007). Scale-Up Syntheses of Two Naturally Occurring Procyanidins: (−)-Epicatechin-(4β,8)-(+)-catechin and (−)-Epicatechin-3-O-galloyl-(4β,8)-(−)-epicatechin-3-O-gallate. Organic Process Research & Development. 11(3). 422–430. 33 indexed citations

Ramljak, Danica, Leo J. Romanczyk, Linda J. Metheny‐Barlow, et al.. (2005). Pentameric procyanidin from Theobroma cacao selectively inhibits growth of human breast cancer cells. Molecular Cancer Therapeutics. 4(4). 537–546. 72 indexed citations

Kozikowski, Alan P., et al.. (2002). Studies in Polyphenol Chemistry and Bioactivity. 4.¹ Synthesis of Trimeric, Tetrameric, Pentameric, and Higher Oligomeric Epicatechin-Derived Procyanidins Having All-4β,8-Interflavan Connectivity and Their Inhibition of Cancer Cell Growth through Cell Cycle Arrest¹. The Journal of Organic Chemistry. 68(5). 1641–1658. 100 indexed citations

TUECKMANTEL, W., Alan P. Kozikowski, & Leo J. Romanczyk. (2000). ChemInform Abstract: Studies in Polyphenol Chemistry and Bioactivity. Part 1. Preparation of Building Blocks from (+)‐Catechin. Procyanidin Formation. Synthesis of the Cancer Cell Growth Inhibitor, 3‐O‐Galloyl‐(2R,3R)‐epicatechin‐4β,8‐ [3‐O‐galloyl‐(2R,3R)‐epicatechin].. ChemInform. 31(13). 17 indexed citations

Tückmantel, Werner, Alan P. Kozikowski, & Leo J. Romanczyk. (1999). Studies in Polyphenol Chemistry and Bioactivity. 1. Preparation of Building Blocks from (+)-Catechin. Procyanidin Formation. Synthesis of the Cancer Cell Growth Inhibitor, 3-O-Galloyl-(2R,3R)-epicatechin-4β,8-[3-O-galloyl-(2R,3R)-epicatechin]. Journal of the American Chemical Society. 121(51). 12073–12081. 133 indexed citations

10.

Hammerstone, John F., et al.. (1995). Sensitivity of Crinipellis perniciosa to procyanidins from Theobroma cacao L.. Physiological and Molecular Plant Pathology. 46(5). 339–348. 8 indexed citations

11.

Romanczyk, Leo J., et al.. (1995). Formation of 2-Acetyl-1-pyrroline by Several Bacillus cereus Strains Isolated from Cocoa Fermentation Boxes. Journal of Agricultural and Food Chemistry. 43(2). 469–475. 68 indexed citations

12.

Clapperton, J. F., et al.. (1994). The contribution of genotype to cocoa (Theobroma cacao L.) flavour. Tropical Agriculture. 71(4). 303–308. 34 indexed citations

13.

Hammerstone, John F., et al.. (1994). Lipid composition ofHerrania andTheobroma seeds. Journal of the American Oil Chemists Society. 71(8). 845–851. 18 indexed citations

14.

Hammerstone, John F., et al.. (1994). Purine alkaloid distribution with Herrania and Theorbroma. Phytochemistry. 35(5). 1237–1240. 37 indexed citations

15.

Rogers, Eugene, et al.. (1993). Identification and quantitation of γ‐oryzanol components and simultaneous assessment of tocols in rice bran oil. Journal of the American Oil Chemists Society. 70(3). 301–307. 193 indexed citations

16.

Andersen, Kenneth K., et al.. (1982). Chemical constituents of the defensive secretion of the striped skunk (Mephitis mephitis). Tetrahedron. 38(13). 1965–1970. 26 indexed citations

17.

Coggon, P., Leo J. Romanczyk, & Gary W. Sanderson. (1977). Extraction, purification, and partial characterization of a tea metalloprotein and its role in the formation of black tea aroma constituents. Journal of Agricultural and Food Chemistry. 25(2). 278–283. 17 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.

Explore authors with similar magnitude of impact