N. B. Chapman
About
N. B. Chapman is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Spectroscopy.
According to data from OpenAlex, N. B. Chapman has authored 82 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Organic Chemistry, 19 papers in Physical and Theoretical Chemistry and 16 papers in Spectroscopy. Recurrent topics in N. B. Chapman's work include Synthesis and Reactions of Organic Compounds (24 papers), Chemical Reaction Mechanisms (20 papers) and Chemical Reactions and Mechanisms (14 papers). N. B. Chapman is often cited by papers focused on Synthesis and Reactions of Organic Compounds (24 papers), Chemical Reaction Mechanisms (20 papers) and Chemical Reactions and Mechanisms (14 papers). N. B. Chapman collaborates with scholars based in United Kingdom and United States. N. B. Chapman's co-authors include John Shorter, R. E. Parker, K. Clarke, E. A. S. Cavell, David J. Triggle, R. M. Scrowston, Keith Bowden, Jason S. Biggs, Victor Wray and Charles W. Rees and has published in prestigious journals such as Journal of Medicinal Chemistry, The Journal of Organic Chemistry and Tetrahedron.
In The Last Decade
N. B. Chapman
77 papers receiving 1.3k citations
Hit Papers
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late) cites · hero ref
| Name | h | Career | Trend | Papers | Cites | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| N. B. Chapman United Kingdom | 16 | 1.0k | 380 | 240 | 226 | 139 | 82 | 1.5k | ||
| DeLos F. DeTar United States | 21 | 915 0.9× | 254 0.7× | 563 2.3× | 284 1.3× | 223 1.6× | 100 | 1.7k | ||
| B. M. Wepster Netherlands | 21 | 982 0.9× | 400 1.1× | 177 0.7× | 395 1.7× | 232 1.7× | 97 | 1.4k | ||
| Gary W. Griffin United States | 26 | 1.5k 1.5× | 507 1.3× | 361 1.5× | 357 1.6× | 219 1.6× | 148 | 2.3k | ||
| Yasuhide Yukawa Japan | 16 | 1.2k 1.1× | 468 1.2× | 159 0.7× | 334 1.5× | 72 0.5× | 64 | 1.3k | ||
| Edward S. Lewis United States | 25 | 1.6k 1.5× | 493 1.3× | 379 1.6× | 382 1.7× | 245 1.8× | 115 | 2.3k | ||
| Y Okamoto | 3 | 831 0.8× | 279 0.7× | 99 0.4× | 206 0.9× | 156 1.1× | 3 | 1.1k | ||
| Walter Lwowski United States | 26 | 1.3k 1.2× | 579 1.5× | 343 1.4× | 132 0.6× | 210 1.5× | 73 | 1.8k | ||
| John E. Leffler United States | 18 | 1.4k 1.4× | 444 1.2× | 382 1.6× | 329 1.5× | 482 3.5× | 74 | 2.4k | ||
| Jeffrey J. Morris United Kingdom | 15 | 765 0.7× | 465 1.2× | 206 0.9× | 510 2.3× | 196 1.4× | 30 | 1.5k | ||
| Priscilla L. Grellier United Kingdom | 14 | 864 0.8× | 569 1.5× | 142 0.6× | 608 2.7× | 296 2.1× | 24 | 1.6k |
Countries citing papers authored by N. B. Chapman
Since
Specialization
Citations
This map shows the geographic impact of N. B. Chapman'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 N. B. Chapman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites N. B. Chapman more than expected).
Fields of papers citing papers by N. B. Chapman
Since
Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences
This network shows the impact of papers produced by N. B. Chapman. 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 N. B. Chapman. The network helps show where N. B. Chapman may publish in the future.
Co-authorship network of co-authors of N. B. Chapman
This figure shows the co-authorship network connecting the top 25 collaborators of N. B. Chapman. A scholar is included among the top collaborators of N. B. Chapman 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 N. B. Chapman. N. B. Chapman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
1.
Chapman, N. B., et al.. (1975). ChemInform Abstract: PREPARATION AND PROPERTIES OF CAGE POLYCYCLIC SYSTEMS PART 3, CLEAVAGE IN ALKALINE CONDITIONS OF ACETALS DERIVED FROM PENTACYCLO(5.3.0.0(2,5).0(3,9).0(4,8))DECANE AND PENTACYCLO(4.3.0.0(2,5).0(3,8).0(4,7))NONANE SYSTEMS. Chemischer Informationsdienst. 6(38).
2.
Chapman, N. B., et al.. (1972). Synthesis of the sulphur analogue of psilocin and some related compounds. Journal of the Chemical Society Perkin Transactions 1. 3011–3011.
3.
Biggs, Jason S., N. B. Chapman, & Victor Wray. (1971). Mechanism of acid-catalysed alcoholysis of epoxides. Part II. Methanolysis of 1,1-diphenylethylene oxide. Journal of the Chemical Society B Physical Organic. 63–63.
4.
Chapman, N. B., K. Clarke, & David J. Harvey. (1971). Some o-substituted NN-dimethyl-2-halogeno-2-phenylethylamines. Journal of the Chemical Society C Organic. 1202–1202.
5.
Chapman, N. B., et al.. (1971). Thieno[2,3-b][1]benzothiophen and thieno[3,2-b][1]benzothiophen. Part III. Substitution reactions of derivatives with substituents in the thiophen ring. Journal of the Chemical Society C Organic. 1308–1308.
6.
Chapman, N. B., et al.. (1970). The valence isomerisation of homocubane derivatives. Tetrahedron Letters. 11(60). 5211–5214.
7.
Chapman, N. B., et al.. (1970). Thieno[2,3-b][1] benzothiophen and thieno[3,2-b][1]benzothiophen. Part I. Preparation. Journal of the Chemical Society C Organic. 2431–2431.
8.
Chapman, N. B., et al.. (1970). The separation of polar and steric effects. Part XI. Kinetics of the reactions of ortho-substituted phenylacetic acids with diazodiphenyl-methane in various alcohols. Journal of the Chemical Society B Physical Organic. 755–755.
9.
Chapman, N. B., et al.. (1969). The separation of polar and steric effects. Part X. Kinetics of the reactions of phenylacetic acid and meta- or para-substituted phenylacetic acids with diazodiphenylmethane in various alcohols. Journal of the Chemical Society B Physical Organic. 769–769.
10.
Chapman, N. B., et al.. (1969). An improved synthesis of substituted benzo[b]thiophen-2-carboxylic acids and related acids. Tetrahedron. 25(14). 2781–2785.
11.
Chapman, N. B., et al.. (1969). The separation of polar and steric effects. Part IX. The kinetics of the reactions of ortho-substituted benzoic acids with diazodiphenylmethane in several solvents. Journal of the Chemical Society B Physical Organic. 195–195.
12.
Chapman, N. B., et al.. (1965). 1172. The kinetics of the reactions of diazodiphenylmethane with some methylnaphthoic and acenaphthoic acids in ethanol or 2-n-butoxy-ethanol. Journal of the Chemical Society (Resumed). 6310–6310.
13.
BARLIN, G. B. & N. B. Chapman. (1965). 553. Nucleophilic displacement reactions in aromatic systems. Part IX. Kinetics of the reactions of 2-, 6-, or 8-chloro -9-methylpurine with piperidine in ethanol. Journal of the Chemical Society (Resumed). 3017–3017.
14.
Bowden, K., N. B. Chapman, & John Shorter. (1964). 638. The separation of polar and steric effects. Part IV. The kinetics of the alkaline hydrolysis of methyl arylaliphatic carboxylates, and the ionization of arylaliphatic carboxylic acids. Journal of the Chemical Society (Resumed). 3370–3370.
15.
Chapman, N. B. & David J. Triggle. (1963). 923. Di-N-substituted 2-halogenoethylamines. Part VII. NN-di-alkyl-2-1′- or -2′-naphthyl derivatives, and some miscellaneous related compounds: synthesis, reactivity, and pharmacology. Journal of the Chemical Society (Resumed). 0(0). 4835–4841.
16.
Chapman, N. B. & David J. Triggle. (1963). 265. Di-N-substituted 2-halogenoethylamines. Part VI. NN-dialkyl-(or N-alkyl)-2-alkyl(or aryl or arylalkyl) derivatives: synthesis, reactivity, and pharmacology. Journal of the Chemical Society (Resumed). 1385–1385.
17.
Chapman, N. B., et al.. (1960). 298. Di-N-substituted 2-halogenoethylamines. Part III. N-2(or 3 or 4)-chlorobenzyl-N-ethyl derivatives: synthesis, reactivity, and pharmacology. Journal of the Chemical Society (Resumed). 1482–1482.
18.
Chapman, N. B., N. S. ISAACS, & R. E. Parker. (1959). 386. The mechanism of epoxide reactions. Part I. The reactions of 1 : 2-epoxyethylbenzene, 1 : 2-epoxy-3-phenylpropane, and 1 : 2-epoxy-3-phenoxypropane with some secondary amines. Journal of the Chemical Society (Resumed). 1925–1925.
19.
Chapman, N. B. & Charles W. Rees. (1954). Nucleophilic displacement reactions in aromatic systems. Part III. Kinetics of the reactions of chloronitropyridines and chloropyrimidines with piperidine, morpholine, pyridine, and aniline. Journal of the Chemical Society (Resumed). 1190–1190.
20.
Chapman, N. B. & R. E. Parker. (1951). 729. Nucleophilic displacement of fluorine from organic compounds. Part I. Kinetics of the reactions of 1-fluoro-2 : 4-dinitrobenzene with primary aromatic amines. Journal of the Chemical Society (Resumed). 3301–3301.
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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