A. Langemann

1.2k citations

30 papers · 848 · h-index 17

Impact in

Pharmaceutical Science top 5%
- Chemical Reactions and Isotopes
Organic Chemistry top 10%
- Chemical Reaction Mechanisms

Papers in

Organic Chemistry 14
- Organic Chemistry Cycloaddition Reactions 5
- Oxidative Organic Chemistry Reactions 4
Molecular Biology 8

Co-authors: A. Kaiser (4 shared papers)M. Kofler (5 shared papers)Wendy B. Bollag (3 shared papers)Fred P. Hauck (5 shared papers)Donald J. Cram (6 shared papers)K. Berneis (2 shared papers)P. Zeller (3 shared papers)Karl R. Kopecky (4 shared papers)
Journals: Helvetica Chimica Acta (11 papers)Journal of the American Chemical Society (7 papers)Cellular and Molecular Life Sciences (4 papers)Tetrahedron (1 paper)Tetrahedron Letters (1 paper)
Partner nations: Switzerland United States Germany

In The Last Decade

A. Langemann

29 papers receiving 740 citations

Peers

Replace A. D. Cross with:

A. D. Cross Czechia

R. M. RODEHORST United States

C. H. Robinson United States

Wolfgang Sucrow Germany

Hans Herloff Inhoffen Germany

Furn F. Knapp United States

Glen E. Arth United States

G. D. Meakins United Kingdom

Roger E. Beyler United States

William F. Erman United States

A. Langemann relative to A. D. Cross Czechia A. D. Cross's profile →

Citations per field

00.5×1.5×2×2.4×

A. D. Cross · 1×

×0.5 65/140

PS

×0.6 299/481

OC

×1.0 48/49

BIOCH

×0.9 18/19

TOXIC

×1.0 343/330

MB

Citations per year

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Countries citing papers authored by A. Langemann

Since Specialization

Citations

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

Fields of papers citing papers by A. Langemann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside A. Langemann, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with A. Langemann Line = papers co-authored together A. Langemann links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 30 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	THE TOTAL SYNTHESIS OF CHLOROPHYLL Journal of the American Chemical Society ·R. B. Woodward, William A. Ayer, J. M. Beaton, F. Matthias Bickelhaupt, Raymond Bonnett, Paul Buchschacher, G. L. Closs, Hans Dutler, John Hannah, Fred P. Hauck, Shô Itô, A. Langemann, E. Le Goff, W. Leimgruber, Walter Lwowski, Jürgen Sauer, Z. Valenta, Heinrich Volz	1960	150
2	The total synthesis of chlorophyll a Tetrahedron ·R. B. Woodward, William A. Ayer, J. M. Beaton, F. Matthias Bickelhaupt, Raymond Bonnett, Paul Buchschacher, G. L. Closs, Hans Dutler, John Hannah, Fred P. Hauck, Shô Itô, A. Langemann, E. Le Goff, W. Leimgruber, Walter Lwowski, (unknown), Z. Valenta, Heinrich Volz	1990	117
3	The degradation of deoxyribonucleic acid by new tumour inhibiting compounds: The intermediate formation of hydrogen peroxide Cellular and Molecular Life Sciences ·K. Berneis, M. Kofler, Wendy B. Bollag, A. Kaiser, A. Langemann	1963	80
4	Methylhydrazine derivatives, a new class of cytotoxic agents Cellular and Molecular Life Sciences ·P. Zeller, Heike Gutmann, B. Hegedüs, A. Kaiser, A. Langemann, Marcel Müller	1963	70
5	Electrophilic Substitution at Saturated Carbon. VI. Stereochemical Capabilities of Carbanions¹ Journal of the American Chemical Society ·Donald J. Cram, José Luis Mateos, Fred P. Hauck, A. Langemann, Karl R. Kopecky, W. David Nielsen, J. Allinger	1959	42
6	Der pro‐oxydative Effekt tumorhemmender Methylhydrazin‐Verbindungen Helvetica Chimica Acta ·K. Berneis, M. Kofler, Wendy B. Bollag, P. Zeller, A. Kaiser, A. Langemann	1963	39
7	Die Struktur eines pflanzlichen Chinons mit isoprenoider Seitenkette Helvetica Chimica Acta ·M. Kofler, A. Langemann, R. Rüegg, L. H. Chopard‐dit‐Jean, A. Rayroud, O. Isler	1959	38
8	Zur Synthese des Ecdysons IX. Mitteilung über Insektenhormone Helvetica Chimica Acta ·A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel, P. Hocks, U. Kerb, Rudolf Wiechert	1967	34
9	Struktur und Partialsynthese des pflanzlichen Chinons mit isoprenoider Seitenkette Helvetica Chimica Acta ·M. Kofler, A. Langemann, R. Rüegg, Urs Gloor, Ulrich Schwieter, J. Würsch, Ø. Wiss, O. Isler	1959	33
10	Zur Synthese des Ecdysons. III. Mitteilung über Insektenhormone. Synthesen von 2β, 3β, 14α‐Trihydroxy‐6‐keto‐Δ⁷‐A\|B‐cis‐Steroiden Helvetica Chimica Acta ·A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel, U. Kerb, P. Hocks, Rudolf Wiechert	1966	25
11	Electrophilic Substitution at Saturated Carbon. I. Survey of Reactions Available for Stereochemical Study¹ Journal of the American Chemical Society ·Donald J. Cram, A. Langemann, J. Allinger, Karl R. Kopecky	1959	24
12	Zur Synthese des Ecdysons. II. Mitteilung über Insektenhormone Synthesen von 2β, 3β‐Dihydroxy‐6‐keto‐A\|B‐cis‐Steroiden Helvetica Chimica Acta ·Rudolf Wiechert, U. Kerb, P. Hocks, A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel	1966	23
13	Electrophilic Substitution at Saturated Carbon. III. Effect of Solvent Composition on Reaction Path¹ Journal of the American Chemical Society ·Donald J. Cram, Karl R. Kopecky, Fred P. Hauck, A. Langemann	1959	21
14	Die Totalsynthese von Solanesol Helvetica Chimica Acta ·R. Rüegg, Urs Gloor, A. Langemann, M. Kofler, C. von Planta, G. Ryser, O. Isler	1960	18
15	Erythrina‐Alkaloide. 5. Mitteilung. Über die Totalsynthese von (−)‐15,16‐Dimethoxy‐1,6‐cis‐erythrinanol‐(3) und seine Herstellung aus Erysodin Helvetica Chimica Acta ·V. Prelog, A. Langemann, Oscar R. Rodig, M. Ternbah	1959	17
16	Zur Synthese des Ecdysons. IV. Mitteilung über Insektenhormone. Die Synthese des natürlichen Häutungshormons Helvetica Chimica Acta ·U. Kerb, Gerhard Schulz, P. Hocks, Rudolf Wiechert, A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel	1966	16
17	Methylazo and methylazoxy compounds; new types of antitumour agents Cellular and Molecular Life Sciences ·Wendy B. Bollag, A. Kaiser, A. Langemann, P. Zeller	1964	16
18	Die synthese des ecdysons Tetrahedron Letters ·U. Kerb, P. Hocks, Rudolf Wiechert, A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel	1966	15
19	Electrophilic Substitution at Saturated Carbon. IV. Competing Radical and Anionic Cleavage Reactions¹ Journal of the American Chemical Society ·Donald J. Cram, A. Langemann, Walter Lwowski, Karl R. Kopecky	1959	11
20	Synthetic Steroids with Moulting Hormone Activity Angewandte Chemie International Edition in English ·P. Hocks, A. Jäger, U. Kerb, Rudolf Wiechert, A. Furlenmeier, A. Fürst, A. Langemann, G. Waldvogel	1966	10

About A. Langemann

A. Langemann is a scholar working on Organic Chemistry, Molecular Biology, Materials Chemistry, Pharmacology and Electrical and Electronic Engineering, having authored 30 papers that have together received 848 indexed citations. Recurring topics across this work include Organic Chemistry Cycloaddition Reactions (5 papers), Molecular Junctions and Nanostructures (5 papers), Electrochemical Analysis and Applications (5 papers), Porphyrin and Phthalocyanine Chemistry (4 papers), Medicinal plant effects and applications (4 papers), Chemical Reactions and Isotopes (4 papers), Oxidative Organic Chemistry Reactions (4 papers) and Electrocatalysts for Energy Conversion (4 papers). The work is most often cited by research in Pharmaceutical Science (65 citations), Organic Chemistry (299 citations), Biochemistry (48 citations), Toxicology (18 citations) and Molecular Biology (343 citations). A. Langemann has collaborated with scholars based in Switzerland, United States and Germany. Frequent co-authors include A. Kaiser, M. Kofler, Wendy B. Bollag, Fred P. Hauck, Donald J. Cram, K. Berneis, P. Zeller, Karl R. Kopecky, A. Fürst and P. Hocks. Their work appears in journals such as Helvetica Chimica Acta, Journal of the American Chemical Society, Cellular and Molecular Life Sciences, Tetrahedron and Tetrahedron Letters.

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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