C.K.A. Callens

591 total citations
10 papers, 485 citations indexed

About

C.K.A. Callens is a scholar working on Organic Chemistry, Molecular Biology and Pharmacology. According to data from OpenAlex, C.K.A. Callens has authored 10 papers receiving a total of 485 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Organic Chemistry, 3 papers in Molecular Biology and 1 paper in Pharmacology. Recurrent topics in C.K.A. Callens's work include Asymmetric Synthesis and Catalysis (7 papers), Synthetic Organic Chemistry Methods (4 papers) and Oxidative Organic Chemistry Reactions (3 papers). C.K.A. Callens is often cited by papers focused on Asymmetric Synthesis and Catalysis (7 papers), Synthetic Organic Chemistry Methods (4 papers) and Oxidative Organic Chemistry Reactions (3 papers). C.K.A. Callens collaborates with scholars based in United Kingdom, Russia and Japan. C.K.A. Callens's co-authors include Timothy J. Donohoe, Adam R. Lacy, Aída Flores, Akshat Rathi, John F. Bower, Nicholas J. Race, Amber L. Thompson, Christian Winter, Panayiotis A. Procopiou and Lisa P. Fishlock and has published in prestigious journals such as Angewandte Chemie International Edition, Chemical Communications and Chemistry - A European Journal.

In The Last Decade

C.K.A. Callens

10 papers receiving 482 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
C.K.A. Callens United Kingdom	9	469	113	86	20	15	10	485
Zhe Zhou United States	12	568 1.2×	120 1.1×	89 1.0×	24 1.2×	7 0.5×	16	609
Ferruccio Bertolini Italy	11	487 1.0×	98 0.9×	74 0.9×	17 0.8×	8 0.5×	19	510
Veronica Tona Austria	12	461 1.0×	108 1.0×	117 1.4×	39 1.9×	22 1.5×	18	510
Yu‐Hua Liao China	12	707 1.5×	168 1.5×	112 1.3×	38 1.9×	21 1.4×	13	737
Youhei Tanaka Japan	11	516 1.1×	168 1.5×	124 1.4×	26 1.3×	10 0.7×	11	538
Tamas Benkovics United States	10	356 0.8×	73 0.6×	75 0.9×	28 1.4×	21 1.4×	14	404
Haruhi Kamisaki Japan	9	597 1.3×	97 0.9×	81 0.9×	15 0.8×	26 1.7×	10	614
Candice Menozzi France	9	336 0.7×	76 0.7×	70 0.8×	40 2.0×	23 1.5×	13	348
Zhonghui Wan United States	9	471 1.0×	78 0.7×	101 1.2×	20 1.0×	18 1.2×	10	517
Changmin Xie China	9	373 0.8×	132 1.2×	66 0.8×	24 1.2×	22 1.5×	14	415

Countries citing papers authored by C.K.A. Callens

Since Specialization

Citations

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

Fields of papers citing papers by C.K.A. Callens

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C.K.A. Callens. 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 C.K.A. Callens. The network helps show where C.K.A. Callens may publish in the future.

Co-authorship network of co-authors of C.K.A. Callens

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

All Works

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10 of 10 papers shown

1.

Hashimoto, Takuya, et al.. (2012). Axially chiral dicarboxylic acid catalyzed asymmetric semipinacol rearrangement of cyclic β-hydroxy-α-diazo esters. Tetrahedron. 68(37). 7630–7635. 15 indexed citations

2.

Donohoe, Timothy J., et al.. (2011). Amino Acid‐Based Reoxidants for Aminohydroxylation: Application to the Construction of Amino Acid–Amino Alcohol Conjugates. Angewandte Chemie International Edition. 50(46). 10957–10960. 18 indexed citations

3.

Donohoe, Timothy J., C.K.A. Callens, Adam R. Lacy, & Christian Winter. (2011). Tethered Aminohydroxylation Reaction and Its Application to Total Synthesis. European Journal of Organic Chemistry. 2012(4). 655–663. 39 indexed citations

4.

Donohoe, Timothy J., et al.. (2011). Amino Acid‐Based Reoxidants for Aminohydroxylation: Application to the Construction of Amino Acid–Amino Alcohol Conjugates. Angewandte Chemie. 123(46). 11149–11152. 4 indexed citations

5.

Donohoe, Timothy J., et al.. (2010). A novel oxidative cyclisation onto vinyl silanes. Chemical Communications. 46(39). 7310–7310. 8 indexed citations

6.

Donohoe, Timothy J., C.K.A. Callens, Aída Flores, Adam R. Lacy, & Akshat Rathi. (2010). Recent Developments in Methodology for the Direct Oxyamination of Olefins. Chemistry - A European Journal. 17(1). 58–76. 251 indexed citations

7.

Donohoe, Timothy J., Nicholas J. Race, John F. Bower, & C.K.A. Callens. (2010). Substituted Pyrroles via Olefin Cross-Metathesis. Organic Letters. 12(18). 4094–4097. 58 indexed citations

8.

Donohoe, Timothy J., Peter J. Lindsay‐Scott, Jeremy S. Parker, & C.K.A. Callens. (2010). New Modes for the Osmium-Catalyzed Oxidative Cyclization. Organic Letters. 12(5). 1060–1063. 14 indexed citations

9.

Donohoe, Timothy J., C.K.A. Callens, & Amber L. Thompson. (2009). Tethered Aminohydroxylation (TA) Reaction of Amides. Organic Letters. 11(11). 2305–2307. 33 indexed citations

10.

Donohoe, Timothy J., et al.. (2009). Ring-closing metathesis for the synthesis of heteroaromatics: evaluating routes to pyridines and pyridazines. Tetrahedron. 65(44). 8969–8980. 45 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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