John H. Block

1.6k total citations · 1 hit paper
34 papers, 945 citations indexed

About

John H. Block is a scholar working on Spectroscopy, Organic Chemistry and Molecular Biology. According to data from OpenAlex, John H. Block has authored 34 papers receiving a total of 945 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Spectroscopy, 8 papers in Organic Chemistry and 7 papers in Molecular Biology. Recurrent topics in John H. Block's work include Analytical Chemistry and Chromatography (13 papers), Computational Drug Discovery Methods (5 papers) and Analytical Methods in Pharmaceuticals (5 papers). John H. Block is often cited by papers focused on Analytical Chemistry and Chromatography (13 papers), Computational Drug Discovery Methods (5 papers) and Analytical Methods in Pharmaceuticals (5 papers). John H. Block collaborates with scholars based in United States and Thailand. John H. Block's co-authors include John M. Beale, Harleen Singh, William J. Dunn, Robert S. Pearlman, John L. Anderson, Douglas R. Henry, Carl Djerassi, Howard L. Levine, S. Morris Kupchan and James W. Ayres and has published in prestigious journals such as Journal of the American Chemical Society, Analytical Chemistry and Journal of Medicinal Chemistry.

In The Last Decade

John H. Block

34 papers receiving 840 citations

Hit Papers

Wilson and Gisvold's Textbook of Organic Medicinal and Ph... 2011 2026 2016 2021 2011 100 200 300 400
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.

  1. Wilson and Gisvold's Textbook of Organic Medicinal and Pharmaceutical Chemistry
    2011 438 citations John M. Beale, John H. Block Lippincott Williams & Wilkins eBooks profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John H. Block United States 13 285 278 204 197 149 34 945
Yoshiko Tsuda Japan 14 121 0.4× 219 0.8× 142 0.7× 254 1.3× 145 1.0× 30 891
György Szász Hungary 13 237 0.8× 305 1.1× 75 0.4× 230 1.2× 169 1.1× 34 804
G. Om Reddy India 19 208 0.7× 283 1.0× 257 1.3× 175 0.9× 308 2.1× 58 1.0k
Jeffrey S. Millership United Kingdom 18 442 1.6× 182 0.7× 345 1.7× 170 0.9× 286 1.9× 59 1.2k
R. F. Rekker Netherlands 16 398 1.4× 321 1.2× 142 0.7× 254 1.3× 53 0.4× 59 950
A. Hulshoff Netherlands 18 515 1.8× 155 0.6× 225 1.1× 268 1.4× 205 1.4× 52 989
Robert E. Notari United States 19 186 0.7× 281 1.0× 159 0.8× 349 1.8× 249 1.7× 66 1.4k
John K. Baker United States 25 583 2.0× 305 1.1× 325 1.6× 470 2.4× 169 1.1× 73 1.6k
N. J. Haskins United Kingdom 17 531 1.9× 122 0.4× 127 0.6× 355 1.8× 117 0.8× 68 1.0k
Katarina Karljiković‐Rajić Serbia 13 207 0.7× 121 0.4× 244 1.2× 107 0.5× 128 0.9× 42 571

Countries citing papers authored by John H. Block

Since Specialization
Citations

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

Fields of papers citing papers by John H. Block

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John H. Block. 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 John H. Block. The network helps show where John H. Block may publish in the future.

Co-authorship network of co-authors of John H. Block

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

All Works

20 of 20 papers shown
1.
Beale, John M. & John H. Block. (2011). Wilson and Gisvold's Textbook of Organic Medicinal and Pharmaceutical Chemistry. Lippincott Williams & Wilkins eBooks. 438 indexed citations breakdown →
2.
Block, John H. & Douglas R. Henry. (2008). Evaluation of descriptors and classification schemes to predict cytochrome substrates in terms of chemical information. Journal of Computer-Aided Molecular Design. 22(6-7). 385–392. 4 indexed citations
3.
Singh, Harleen, et al.. (2004). Likelihood and Mechanisms of Cross‐Allergenicity Between Sulfonamide Antibiotics and Other Drugs Containing a Sulfonamide Functional Group. Pharmacotherapy The Journal of Human Pharmacology and Drug Therapy. 24(7). 856–870. 93 indexed citations
4.
5.
Dunn, William J., et al.. (1986). Partition coefficient : determination and estimation. Medical Entomology and Zoology. 113 indexed citations
6.
Ayres, James W., et al.. (1985). Preparation and Characterization of Potential Prodrugs of Dyphylline. Journal of Pharmaceutical Sciences. 74(2). 184–187. 1 indexed citations
7.
Block, John H.. (1983). Analytical Profiles of Drug Substances, Vol. 10. Journal of Pharmaceutical Sciences. 72(1). 101–101. 9 indexed citations
8.
9.
Chiou, Cary T., David Schmedding, & John H. Block. (1981). Correlation of water solubility with octanol-water partition coefficient. Journal of Pharmaceutical Sciences. 70(10). 1176–1177. 14 indexed citations
10.
Block, John H., James W. Ayres, Douglas R. Henry, & Howard L. Levine. (1980). Use of flow programming in paired-ion high-performance liquid chromatographic analysis of dosage forms containing dyphylline. Journal of Chromatography A. 193(1). 111–117. 7 indexed citations
11.
Block, John H., Howard L. Levine, & James W. Ayres. (1979). Paired-ion Reversed-Phase High-Pressure Liquid Chromatographic Assay of Pentobarbital–Pyrilamine Suppositories. Journal of Pharmaceutical Sciences. 68(5). 605–608. 8 indexed citations
12.
Henry, Douglas R. & John H. Block. (1979). Classification of drugs by discriminant analysis using fragment molecular connectivity values. Journal of Medicinal Chemistry. 22(5). 465–472. 13 indexed citations
13.
Walker, Richard B., et al.. (1978). tert-Butoxycarbonyl as a Convenient Protecting Group in Synthesis of Potential Centrally Active Dopamine Derivatives. Journal of Pharmaceutical Sciences. 67(4). 558–559. 2 indexed citations
14.
Block, John H., et al.. (1974). Mass spectrometry in structural and stereochemical problems. CCXXXVIII. Effect of heteroatoms upon the mass spectrometric fragmentation of cyclohexanones. The Journal of Organic Chemistry. 39(3). 279–285. 3 indexed citations
15.
Block, John H.. (1974). Inorganic medicinal and pharmaceutical chemistry. Medical Entomology and Zoology. 16 indexed citations
16.
Block, John H., et al.. (1973). Choline sulfate (ester) in marine higher fungi. Marine Chemistry. 1(2). 157–162. 13 indexed citations
17.
Block, John H. & Carl Djerassi. (1973). Selective deuterium labeling of steroidal estrogens. Steroids. 22(5). 591–596. 15 indexed citations
18.
Block, John H., et al.. (1972). Revised structure of a steroid oxide from Rhododendron macrophyllum. Phytochemistry. 11(11). 3279–3282. 14 indexed citations
19.
KANDEEL, E. M., et al.. (1972). Substituted Tetralins IV: Synthesis and Stereochemistry of 4,4-Disubstituted 1,2,3,4-Tetrahydro-2-naphthoic Acids. Journal of Pharmaceutical Sciences. 61(8). 1231–1234. 1 indexed citations
20.
Kupchan, S. Morris, et al.. (1966). Tumor Inhibitors. XV. The Structure and Configuration of Cissampareine, a Novel Bisbenzylisoquinoline Alkaloid2,3. Journal of the American Chemical Society. 88(18). 4212–4218. 16 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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