W. N. SPECKAMP

7.1k total citations · 2 hit papers
218 papers, 5.5k citations indexed

About

W. N. SPECKAMP is a scholar working on Organic Chemistry, Molecular Biology and Inorganic Chemistry. According to data from OpenAlex, W. N. SPECKAMP has authored 218 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 195 papers in Organic Chemistry, 68 papers in Molecular Biology and 28 papers in Inorganic Chemistry. Recurrent topics in W. N. SPECKAMP's work include Asymmetric Synthesis and Catalysis (61 papers), Synthetic Organic Chemistry Methods (46 papers) and Chemical Synthesis and Analysis (44 papers). W. N. SPECKAMP is often cited by papers focused on Asymmetric Synthesis and Catalysis (61 papers), Synthetic Organic Chemistry Methods (46 papers) and Chemical Synthesis and Analysis (44 papers). W. N. SPECKAMP collaborates with scholars based in Netherlands, Germany and United States. W. N. SPECKAMP's co-authors include Henk Hiemstra, Marinus J. Moolenaar, J. B. P. A. WIJNBERG, H. Schoemaker, J. Dijkink, Wim J. Klaver, Jan Hubert, H. O. Huisman, R. J. VIJN and Rolf A. T. M. van Benthem and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Organic Chemistry and Tetrahedron.

In The Last Decade

W. N. SPECKAMP

216 papers receiving 5.2k citations

Hit Papers

align trajectories

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.

New Developments in the Chemistry of N-Acyliminium Ions and Related Intermediates

2000 550 citations W. N. SPECKAMP, Marinus J. Moolenaar Tetrahedron profile →
Intramolecular reactions of N-acyliminium intermediates

1985 480 citations W. N. SPECKAMP, Henk Hiemstra Tetrahedron profile →

Peers

Countries citing papers authored by W. N. SPECKAMP

Since Specialization

Citations

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

Fields of papers citing papers by W. N. SPECKAMP

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by W. N. SPECKAMP. 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. N. SPECKAMP. The network helps show where W. N. SPECKAMP may publish in the future.

Co-authorship network of co-authors of W. N. SPECKAMP

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Enantioselective Formal Total Synthesis of Roseophilin 2000 ·Organic Letters ·(unknown), Tim Luker, W. N. SPECKAMP, Henk Hiemstra	30
2	Synthesis of enantiopure (nor-)azatropanes viaN-acylhydrazonium ion intermediates 1997 ·Tetrahedron Letters ·(unknown), Henk Hiemstra, W. N. SPECKAMP	10
3	Synthese von D‐(+)‐Biotin durch selektiven Ringschluß von N‐Acyliminium‐Silylenolethern 1995 ·Angewandte Chemie ·Marinus J. Moolenaar, W. N. SPECKAMP, Henk Hiemstra, (unknown), (unknown)	4
4	Synthesis of bicyclic 3‐pyrazolidinones via π‐cyclization reactions of exocyclic N‐acylhydrazonium ions 1994 ·Recueil des Travaux Chimiques des Pays-Bas ·Floris P. J. T. Rutjes, (unknown), Henk Hiemstra, W. N. SPECKAMP	4
5	Synthesis of oxacyclic carboxylic esters through ring closure of α-alkoxy ester free radicals 1991 ·Tetrahedron Letters ·(unknown), Henk Hiemstra, (unknown), W. N. SPECKAMP	20
6	Mitomycin analogs I. Indoloquinones as (potential) bisalkylating agents 1987 ·Tetrahedron ·E. A. OOSTVEEN, W. N. SPECKAMP	70
7	Stereo- and Enantioselective Syntheses of 2,3-Dihydroindole Derivatives 1984 ·Heterocycles ·W. N. SPECKAMP	13
8	Enantioselective 1,5-electrocyclization. Synthesis of optically active indolines 1982 ·Journal of the Chemical Society Chemical Communications ·Siem J. Veenstra, W. N. SPECKAMP	13
9	Olefin cyclisations of hindered α-acyliminium ions 1982 ·Tetrahedron ·(unknown), W. N. SPECKAMP, (unknown)	14
10	Efficient and stereoselective synthesis of 2,3-dihydroindoles via 1,5-electrocyclization 1981 ·Journal of the American Chemical Society ·W. N. SPECKAMP, Siem J. Veenstra, J. Dijkink, (unknown)	27
11	3-Azanoradamantanes 1979 ·Heterocycles ·W. N. SPECKAMP, (unknown)	6
12	The 2-oxo-thiazolidinium moiety as a novel initiating center for stereoselective olefin cyclisations 1979 ·Tetrahedron Letters ·(unknown), H. Schoemaker, W. N. SPECKAMP	3
13	Formation of a 1,2 dihydronaphthalene via methylene radical attack on a naphthalene nucleus 1977 ·Tetrahedron Letters ·J. Köhler, W. N. SPECKAMP	20
14	New total synthesis of eserine-type alkaloids via regioselective NaBH4-reduction of imides. 1975 ·Tetrahedron Letters ·J. B. P. A. WIJNBERG, W. N. SPECKAMP	9
15	Skeletal rearrangements of 4,4-dimethyl-Δ5,8(9) steroidal azoester adducts. 1973 ·Tetrahedron Letters ·(unknown), W. N. SPECKAMP	5
16	Stereochemical aspects in the mass spectra of N-Ts-3-aza-7-carbethoxybicyclo[3.3.1]Nonanes 1972 ·Tetrahedron ·(unknown), N. M. M. Nibbering, W. N. SPECKAMP	7
17	Functionally substituted piperidines via heterocycloaddition. 1972 ·Tetrahedron Letters ·(unknown), (unknown), J. B. P. A. WIJNBERG, W. N. SPECKAMP, H. O. Huisman	8
18	Dual fragmentation of thiachromanones-4 upon sulfur-ylid treatment. Formation of thianaphthenes. 1970 ·Tetrahedron Letters ·W. N. SPECKAMP, J. Dijkink, (unknown), H. O. Huisman	1
19	Addition to steroid polyenes IV 1967 ·Tetrahedron Letters ·(unknown), W. N. SPECKAMP, H. O. Huisman	5
20	Heterocyclic steroids VI 1966 ·Tetrahedron Letters ·(unknown), U. K. PANDIT, W. N. SPECKAMP, H. O. Huisman	15

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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