W.‐R. KNAPPE

547 total citations
13 papers, 488 citations indexed

About

W.‐R. KNAPPE is a scholar working on Organic Chemistry, Molecular Biology and Pharmaceutical Science. According to data from OpenAlex, W.‐R. KNAPPE has authored 13 papers receiving a total of 488 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Organic Chemistry, 4 papers in Molecular Biology and 4 papers in Pharmaceutical Science. Recurrent topics in W.‐R. KNAPPE's work include Radical Photochemical Reactions (5 papers), Molecular Sensors and Ion Detection (4 papers) and Fluorine in Organic Chemistry (3 papers). W.‐R. KNAPPE is often cited by papers focused on Radical Photochemical Reactions (5 papers), Molecular Sensors and Ion Detection (4 papers) and Fluorine in Organic Chemistry (3 papers). W.‐R. KNAPPE collaborates with scholars based in Germany and United States. W.‐R. KNAPPE's co-authors include Peter Hemmerich, Helmut Fenner, Hans‐Jürgen Duchstein, Vincent Massey, Wolfgang Pfleiderer, Rudolf Mengel, Sandro Ghisla, William S. McIntire, William C. Kenney and Thomas P. Singer and has published in prestigious journals such as Biochemistry, FEBS Letters and Journal of Pharmaceutical Sciences.

In The Last Decade

W.‐R. KNAPPE

13 papers receiving 446 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
W.‐R. KNAPPE Germany	10	269	104	86	81	61	13	488
Oscar Gawron United States	16	414 1.5×	117 1.1×	164 1.9×	138 1.7×	79 1.3×	44	703
Hideo Ochiai Japan	14	366 1.4×	54 0.5×	64 0.7×	81 1.0×	19 0.3×	51	588
Rosemary Bray United States	2	357 1.3×	103 1.0×	50 0.6×	119 1.5×	40 0.7×	3	581
James T. McFarland United States	15	397 1.5×	62 0.6×	36 0.4×	69 0.9×	92 1.5×	31	620
Hiroteru Sayo Japan	11	167 0.6×	33 0.3×	184 2.1×	64 0.8×	58 1.0×	79	618
Janice A. DeGray United States	9	197 0.7×	33 0.3×	110 1.3×	32 0.4×	29 0.5×	11	490
H.I.X. Mager Netherlands	14	245 0.9×	26 0.3×	252 2.9×	55 0.7×	31 0.5×	45	570
Eddie C. Smith United States	11	436 1.6×	97 0.9×	53 0.6×	120 1.5×	71 1.2×	24	744
Burnett M. Pitt United States	8	289 1.1×	120 1.2×	252 2.9×	38 0.5×	77 1.3×	9	722
M. Tamba Italy	13	197 0.7×	115 1.1×	272 3.2×	71 0.9×	36 0.6×	26	641

Countries citing papers authored by W.‐R. KNAPPE

Since Specialization

Citations

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

Fields of papers citing papers by W.‐R. KNAPPE

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by W.‐R. KNAPPE. 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 W.‐R. KNAPPE. The network helps show where W.‐R. KNAPPE may publish in the future.

Co-authorship network of co-authors of W.‐R. KNAPPE

This figure shows the co-authorship network connecting the top 25 collaborators of W.‐R. KNAPPE. A scholar is included among the top collaborators of W.‐R. KNAPPE 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 W.‐R. KNAPPE. W.‐R. KNAPPE 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:

13 of 13 papers shown

Ram, Vishnu Ji, W.‐R. KNAPPE, & Wolfgang Pfleiderer. (1982). Pteridine, LXXI. Synthese und photochemisches Verhalten von 8‐substituierten Lumazinen. Liebigs Annalen der Chemie. 1982(4). 762–779. 11 indexed citations

Krämer, Horst, et al.. (1981). FLAVIN‐PHOTOREDUCTION BY CYANIDE: NUCLEOPHILIC ADDITION IN THE EXCITED TRIPLET STATE. Photochemistry and Photobiology. 33(6). 807–814. 9 indexed citations

Ghisla, Sandro, William C. Kenney, W.‐R. KNAPPE, William S. McIntire, & Thomas P. Singer. (1980). Chemical synthesis and some properties of 6-substituted flavins. Biochemistry. 19(12). 2537–2544. 34 indexed citations

KNAPPE, W.‐R., Peter Hemmerich, Hans‐Jürgen Duchstein, Helmut Fenner, & Vincent Massey. (1978). Photochemical formation of deazaflavin dimers.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 17(1). 16–7. 19 indexed citations

KNAPPE, W.‐R.. (1978). Flavin-Catalyzed Photooxidation of an Acridan Drug: A Reinvestigation. Journal of Pharmaceutical Sciences. 67(3). 318–320. 1 indexed citations

Massey, Vincent, Peter Hemmerich, W.‐R. KNAPPE, Hans‐Jürgen Duchstein, & Helmut Fenner. (1978). Photoreduction of flavoproteins and other biological compounds catalyzed by deazaflavins. Appendix: photochemical formation of deazaflavin dimers. Biochemistry. 17(1). 9–17. 311 indexed citations

Mengel, Rudolf, Wolfgang Pfleiderer, & W.‐R. KNAPPE. (1977). Norrish type II analogous photodegradation of neopterin and biopterin to 5,8 -dihydropterin-6-aldehyde. Tetrahedron Letters. 18(32). 2817–2820. 28 indexed citations

Ram, Vishnu Ji, W.‐R. KNAPPE, & Wolfgang Pfleiderer. (1977). Synthese und photochemie N-8 substituierter lumazine. Tetrahedron Letters. 18(43). 3795–3798. 4 indexed citations

KNAPPE, W.‐R.. (1975). Photochemie des (Iso)Alloxazins, IV. Dealkylierung und Decarboxylierung kurzkettiger Isoalloxazin‐10‐alkancarbonsäuren. Chemische Berichte. 108(7). 2422–2438. 17 indexed citations

10.

KNAPPE, W.‐R. & Peter Hemmerich. (1972). Covalent Intermediates in Flavin-sensitized Photodehydrogenation and Photodecarboxylation. Zeitschrift für Naturforschung B. 27(9). 1032–1035. 17 indexed citations

11.

KNAPPE, W.‐R. & Peter Hemmerich. (1971). 5‐(2‐Thiolyl)‐1,5‐dihydro‐flavin: A model of group transfer in flavin dependent substrate dehydrogenation. FEBS Letters. 13(5). 293–296. 9 indexed citations

12.

KNAPPE, W.‐R., et al.. (1971). Neue Photo‐Alkylierungsreaktionen am Flavin‐Kern. Angewandte Chemie. 83(21). 854–856. 15 indexed citations

13.

KNAPPE, W.‐R., et al.. (1971). Novel Photoalkylation Reactions on the Flavin Nucleus. Angewandte Chemie International Edition in English. 10(11). 804–806. 13 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