Manuela Schäffer

960 citations

24 papers · 805 indexed · h-index 16

Impact in

Biochemistry top 2%
- Traditional and Medicinal Uses of Annonaceae
Pharmacology top 2%
- Alkaloids: synthesis and pharmacology

Papers in

Biochemistry 9
- Traditional and Medicinal Uses of Annonaceae 9
Spectroscopy 14
- Molecular spectroscopy and chirality 11
- Analytical Chemistry and Chromatography 6
- Mass Spectrometry Techniques and Applications 3

Co-authors: Gerhard Bringmann Michael R. Boyd Yali F. Hallock John H. Cardellina Ralf God James B. McMahon Kirk P. Manfredi Guido François
Journals: Phytochemistry (8 papers)Planta Medica (2 papers)Forensic Science International (2 papers)Tetrahedron (1 paper)Journal of Medicinal Chemistry (1 paper)
Partner nations: Germany United States Belgium

In The Last Decade

Manuela Schäffer

24 papers receiving 769 citations

Peers

Countries citing papers authored by Manuela Schäffer

Since Specialization

Citations

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

Fields of papers citing papers by Manuela Schäffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Manuela Schäffer, 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 Manuela Schäffer Line = papers co-authored together Manuela Schäffer links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Forensic profiling of sassafras oils based on comprehensive two-dimensional gas chromatography Forensic Science International ·Manuela Schäffer, Thomas Gröger, Michael Pütz, Ralf Zimmermann	2013	15
2	Impact of reaction parameters on the chemical profile of 3,4-methylenedioxymethamphetamine synthesized via reductive amination: Target analysis based on GC-qMS compared to non-targeted analysis based on GC×GC–TOF-MS Forensic Science International ·Manuela Schäffer, Catherine Hallot, Michael Pütz, Šarūnė Stanevičiūtė, Ute Pyell, Ralf Zimmermann	2013	5
3	Application of two-dimensional gas chromatography combined with pixel-based chemometric processing for the chemical profiling of illicit drug samples Journal of Chromatography A ·Ramin Hamidi, Manuela Schäffer, Michael Pütz, Solmaz Shakerifard, Kevin Drew, Markus Eschner, Ralf Zimmermann	2008	62
4	Korundamine A, a novel HIV-inhibitory and antimalarial “hybrid” naphthylisoquinoline alkaloid heterodimer from Ancistrocladus korupensis Bioorganic & Medicinal Chemistry Letters ·Yali F. Hallock, John H. Cardellina, Manuela Schäffer, MARIANA DE GODOY, Guido François, Michael R. Boyd	1998	48
5	5′-O-demethyldioncophylline A, a new antimalarial alkaloid from triphyophyllum peltatum1Part 111 in the series “Acetogenic Isoquinoline Alkaloids”. For Part 110, see Ref.[1].1 Phytochemistry ·Gerhard Bringmann, Wael Saeb, Ralf God, Manuela Schäffer, Guido François, Karl Peters, A. A. Soloneko, Peter Proksch, Kurt Hostettmann, Laurent Aké Assi	1998	31
6	Ancistrobertsonine A and related naphthylisoquinoline alkaloids from Ancistrocladus robertsoniorum Phytochemistry ·Gerhard Bringmann, John Tchalenko, Manuela Schäffer, E Koptseva, Matteo Taufer, I. Zisman, Jean-Paul Nussbaumer	1998	21
7	Ancistroguineines A and B as well as ancistrotectorine-naphthylisoquinoline alkaloids from Ancistrocladus guineënsis Phytochemistry ·Gerhard Bringmann, Christian Günther, R. Scardua, Manuela Schäffer, I Made Yudiana Dharma, Babajide I. Alo	1998	18
8	Dioncophyllinol D, the First 4-Hydroxylated Naphthylisoquinoline Alkaloid, from the Leaves of Triphyophyllum peltatum Heterocycles ·Gerhard Bringmann, Matthias Wenzel, Markus Rückert, Kristina Wolf, R. Scardua, Manuela Schäffer, Laurent Aké Assi	1998	9
9	Dioncophylline D and 8-O-Methyldioncophylline D, 7,8′-Coupled naphthylisoquinoline alkaloids from triphyophyllum PELTATUMfn2fn2Part 108 in the series Acetogenic Isoquinoline Alkaloids. For part 107, see Ref. [1]. Phytochemistry ·Gerhard Bringmann, Matthias Wenzel, Martin Rübenacker, Manuela Schäffer, Markus Rückert, Laurent Aké Assi	1998	9
10	Yaoundamines A and B, new antimalarial naphthylisoquinoline alkaloids from Ancistrocladus korupensis Tetrahedron ·Yali F. Hallock, John H. Cardellina, Manuela Schäffer, Martin Ståhl, Gerhard Bringmann, Guido François, Michael R. Boyd	1997	23
11	N,N-Dimethyldioncophyllinium A Iodide: Synthesis, Stereoanalysis, and Antimalarial Activity of the FirstN-Quaternary Naphthylisoquinolinium Salt* Planta Medica ·Gerhard Bringmann, Jean Malaplate, Manuela Schäffer, Ralf God, Rainer Walter, Guido François	1997	5
12	Michellamines D−F, New HIV-Inhibitory Dimeric Naphthylisoquinoline Alkaloids, and Korupensamine E, a New Antimalarial Monomer, from Ancistrocladus korupensis Journal of Natural Products ·Yali F. Hallock, Kirk P. Manfredi, Jin‐Rui Dai, John H. Cardellina, Robert J. Gulakowski, James B. McMahon, Manuela Schäffer, Martin Ståhl, Klaus-Peter Gulden, Gerhard Bringmann, Guido François, Michael R. Boyd	1997	78
13	Convergent Synthesis of Naphthylisoquinoline Alkaloids: Total Synthesis of (+)-O-Methylancistrocline The Journal of Organic Chemistry ·Gang Wang, Stéphane Benilsi, Mark A. Rizzacasa, Gerhard Bringmann, Klaus-Peter Gulden, Manuela Schäffer	1996	37
14	An improved degradation procedure for determination of the absolute configuration in chiral isoquinoline and β-carboline derivatives Phytochemistry ·Gerhard Bringmann, Ralf God, Manuela Schäffer	1996	70
15	Anti-HIV Michellamines from Ancistrocladus korupensis Journal of Medicinal Chemistry ·Michael R. Boyd, Yali F. Hallock, John H. Cardellina, Kirk P. Manfredi, John W. Blunt, James B. McMahon, Robert W. Buckheit, Gerhard Bringmann, Manuela Schäffer, Gordon M. Cragg, Duncan W. Thomas, Johnson Jato	1994	196
16	5′-O-demethyl-8-O-methyl-7-epi-dioncophylline a and its ‘regularly’ configurated atropisomer from Triphyophyllum peltatum Phytochemistry ·Gerhard Bringmann, Martin Rübenacker, Wolfgang Koch, Тетяна Жила, Ravi K. Raju Namburi, Manuela Schäffer, Laurent Aké Assi	1994	10
17	First Total Synthesis of Korupensamines A and B Heterocycles ·Gerhard Bringmann, Roland Götz, Paul A. Keller, Rainer Walter, M. S. Korsakov, Manuela Schäffer, LI Daoyong, T. Ross Kelly, Michael R. Boyd	1994	40
18	Ancistrobrevine C from Ancistrocladus abbreviatus: The first mixed ‘ancistrocladaceae/dioncophyllaceae-type’ naphthylisoquinoline alkaloid Phytochemistry ·Gerhard Bringmann, Barbara Heoker, LI Daoyong, Manuela Schäffer, Laurent Aké Assi	1993	22
19	The Determination of the Absolute Configuration ofN-Methylated 1,3-Dimethyltetrahydroisoquinolines by Oxidative Degradation Planta Medica ·Gerhard Bringmann, Thorpe, Barbara Heoker, Manuela Schäffer, Chow‐Hong Tay	1993	4
20	The Absolute Configuration of Michellamine B, a “Dimeric”, Anti‐HIV‐Active Naphthylisoquinoline Alkaloid Angewandte Chemie International Edition in English ·Gerhard Bringmann, Chow‐Hong Tay, Manuela Schäffer, Yali F. Hallock, John H. Cardellina, Michael R. Boyd	1993	44

About Manuela Schäffer

Manuela Schäffer is a scholar working on Biochemistry, Spectroscopy, Organic Chemistry, Toxicology and Pharmacology, having authored 24 papers that have together received 805 indexed citations. Recurring topics across this work include Axial and Atropisomeric Chirality Synthesis (14 papers), Molecular spectroscopy and chirality (11 papers), Traditional and Medicinal Uses of Annonaceae (9 papers), Chemical synthesis and alkaloids (7 papers), Analytical Chemistry and Chromatography (6 papers), Alkaloids: synthesis and pharmacology (5 papers), Mass Spectrometry Techniques and Applications (3 papers) and Advanced Chemical Sensor Technologies (2 papers). The work is most often cited by research in Biochemistry (188 citations), Pharmacology (185 citations), Organic Chemistry (602 citations), Spectroscopy (298 citations) and Toxicology (42 citations). Manuela Schäffer has collaborated with scholars based in Germany, United States and Belgium. Frequent co-authors include Gerhard Bringmann, Michael R. Boyd, Yali F. Hallock, John H. Cardellina, Ralf God, James B. McMahon, Kirk P. Manfredi, Guido François, John W. Blunt and John H. Cardellina. Their work appears in journals such as Phytochemistry, Planta Medica, Forensic Science International, Tetrahedron and Journal of Medicinal Chemistry.

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