Fredrik Hæffner

3.8k total citations
66 papers, 3.2k citations indexed

About

Fredrik Hæffner is a scholar working on Organic Chemistry, Molecular Biology and Inorganic Chemistry. According to data from OpenAlex, Fredrik Hæffner has authored 66 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Organic Chemistry, 24 papers in Molecular Biology and 10 papers in Inorganic Chemistry. Recurrent topics in Fredrik Hæffner's work include Asymmetric Synthesis and Catalysis (15 papers), Chemical Synthesis and Analysis (15 papers) and Synthetic Organic Chemistry Methods (14 papers). Fredrik Hæffner is often cited by papers focused on Asymmetric Synthesis and Catalysis (15 papers), Chemical Synthesis and Analysis (15 papers) and Synthetic Organic Chemistry Methods (14 papers). Fredrik Hæffner collaborates with scholars based in United States, Sweden and Australia. Fredrik Hæffner's co-authors include Amir H. Hoveyda, Torbjörn Norin, Karl Hult, Fanke Meng, James P. Morken, Marc L. Snapper, Hao Wu, Sebastian Torker, Per E. M. Siegbahn and Erika M. Vieira and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Angewandte Chemie International Edition.

In The Last Decade

Fredrik Hæffner

66 papers receiving 3.2k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Fredrik Hæffner 2.3k 1.0k 641 329 227 66 3.2k
Francesca Cardona 3.8k 1.7× 1.5k 1.5× 451 0.7× 90 0.3× 330 1.5× 126 4.3k
Kenji Koga 3.0k 1.3× 1.1k 1.1× 752 1.2× 549 1.7× 64 0.3× 165 4.2k
Takeo Konakahara 2.4k 1.0× 853 0.8× 514 0.8× 129 0.4× 137 0.6× 158 2.9k
László Kollár 4.3k 1.9× 903 0.9× 1.6k 2.5× 392 1.2× 41 0.2× 335 5.2k
Seiji Suga 5.2k 2.3× 1.5k 1.4× 1.1k 1.7× 716 2.2× 59 0.3× 162 6.9k
Tim Storr 1.4k 0.6× 590 0.6× 1.4k 2.2× 240 0.7× 594 2.6× 108 4.2k
Shuji Akai 3.8k 1.7× 1.3k 1.2× 608 0.9× 504 1.5× 28 0.1× 208 4.9k
Fumie Sato 5.9k 2.6× 1.2k 1.1× 1.2k 1.9× 244 0.7× 64 0.3× 322 6.8k
Michael J. Begley 1.4k 0.6× 951 0.9× 802 1.3× 122 0.4× 78 0.3× 193 3.1k
Mitsuhiro Arisawa 3.4k 1.5× 1.2k 1.1× 472 0.7× 86 0.3× 59 0.3× 193 4.2k

Countries citing papers authored by Fredrik Hæffner

Since Specialization
Citations

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

Fields of papers citing papers by Fredrik Hæffner

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Fredrik Hæffner

This figure shows the co-authorship network connecting the top 25 collaborators of Fredrik Hæffner. A scholar is included among the top collaborators of Fredrik Hæffner 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 Fredrik Hæffner. Fredrik Hæffner 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.
Wang, Wenqi, Zefeng Zhou, Devavrat Sathe, et al.. (2021). Degradable Vinyl Random Copolymers via Photocontrolled Radical Ring‐Opening Cascade Copolymerization**. Angewandte Chemie. 134(8). 10 indexed citations
2.
Yang, Cangjie, Zefeng Zhou, Fredrik Hæffner, et al.. (2021). Electrochemically Triggered Chain Reactions for the Conversion of Furan Derivatives. Angewandte Chemie. 133(14). 7612–7617. 3 indexed citations
3.
Silverio, Daniel L., Sebastian Torker, Daniel Robbins, et al.. (2016). Catalytic enantioselective addition of organoboron reagents to fluoroketones controlled by electrostatic interactions. Nature Chemistry. 8(8). 768–777. 121 indexed citations
4.
Xu, Senmiao, Fredrik Hæffner, Bo Li, Lev N. Zakharov, & Shih‐Yuan Liu. (2014). Monobenzofused 1,4‐Azaborines: Synthesis, Characterization, and Discovery of a Unique Coordination Mode. Angewandte Chemie International Edition. 53(26). 6795–6799. 72 indexed citations
5.
Mszar, Nicholas W., Fredrik Hæffner, & Amir H. Hoveyda. (2014). NHC–Cu-Catalyzed Addition of Propargylboron Reagents to Phosphinoylimines. Enantioselective Synthesis of Trimethylsilyl-Substituted Homoallenylamides and Application to the Synthesis of S-(−)-Cyclooroidin. Journal of the American Chemical Society. 136(9). 3362–3365. 52 indexed citations
6.
Dabrowski, Jennifer A., Fredrik Hæffner, & Amir H. Hoveyda. (2013). Combining NHC–Cu and Brønsted Base Catalysis: Enantioselective Allylic Substitution/Conjugate Additions with Alkynylaluminum Reagents and Stereospecific Isomerization of the Products to Trisubstituted Allenes. Angewandte Chemie International Edition. 52(30). 7694–7699. 80 indexed citations
7.
Wang, Chenbo, Fredrik Hæffner, Richard R. Schrock, & Amir H. Hoveyda. (2013). Molybdenum‐Based Complexes with Two Aryloxides and a Pentafluoroimido Ligand: Catalysts for Efficient Z‐Selective Synthesis of a Macrocyclic Trisubstituted Alkene by Ring‐Closing Metathesis. Angewandte Chemie International Edition. 52(7). 1939–1943. 71 indexed citations
8.
Hæffner, Fredrik, et al.. (2013). Enantioselective silyl protection of alcohols promoted by a combination of chiral and achiral Lewis basic catalysts. Nature Chemistry. 5(9). 768–774. 72 indexed citations
9.
Silverio, Daniel L., Sebastian Torker, Tatiana Pilyugina, et al.. (2013). Simple organic molecules as catalysts for enantioselective synthesis of amines and alcohols. Nature. 494(7436). 216–221. 200 indexed citations
10.
Vieira, Erika M., Fredrik Hæffner, Marc L. Snapper, & Amir H. Hoveyda. (2012). A Robust, Efficient, and Highly Enantioselective Method for Synthesis of Homopropargyl Amines. Angewandte Chemie International Edition. 51(27). 6618–6621. 59 indexed citations
11.
Hæffner, Fredrik, Kevin J. Barnham, Ashley I. Bush, & Tore Brinck. (2009). Generation of soluble oligomeric β-amyloid species via copper catalyzed oxidation with implications for Alzheimer’s disease: A DFT study. Journal of Molecular Modeling. 16(6). 1103–1108. 4 indexed citations
12.
Hickey, Magali B., Matthew L. Peterson, Eric S. Manas, et al.. (2007). Hydrates and Solid-State Reactivity: A Survey of β-Lactam Antibiotics. Journal of Pharmaceutical Sciences. 96(5). 1090–1099. 34 indexed citations
13.
Hæffner, Fredrik, Danielle G. Smith, Kevin J. Barnham, & Ashley I. Bush. (2005). Model studies of cholesterol and ascorbate oxidation by copper complexes: Relevance to Alzheimer’s disease β-amyloid metallochemistry. Journal of Inorganic Biochemistry. 99(12). 2403–2422. 29 indexed citations
14.
Barnham, Kevin J., Fredrik Hæffner, Giuseppe D. Ciccotosto, et al.. (2004). Tyrosine gated electron transfer is key to the toxic mechanism of Alzheimer's disease β‐amyloid. The FASEB Journal. 18(12). 1427–1429. 230 indexed citations
15.
Hæffner, Fredrik, Peter Brandt, & Robert E. Gawley. (2002). A Theoretical Investigation into the Inversion Barrier of Dipole-Stabilized α-Aminoorganolithiums. Organic Letters. 4(12). 2101–2104. 17 indexed citations
16.
Brandt, Peter & Fredrik Hæffner. (2002). A DFT-Derived Model Predicts Solvation-Dependent Configurational Stability of Organolithium Compounds:  A Case Study of a Chiral α-Thioallyllithium Compound. Journal of the American Chemical Society. 125(1). 48–49. 17 indexed citations
17.
Hæffner, Fredrik, Torbjörn Norin, & Karl Hult. (1998). Molecular Modeling of the Enantioselectivity in Lipase-Catalyzed Transesterification Reactions. Biophysical Journal. 74(3). 1251–1262. 100 indexed citations
18.
Holmquist, Mats, Fredrik Hæffner, Torbjörn Norin, & Karl Hult. (1996). A structural basis for enantioselective inhibition of Candida rugosa lipase by long‐chain aliphatic alcohols. Protein Science. 5(1). 83–88. 58 indexed citations
19.
Norin, Martin, Fredrik Hæffner, Karl Hult, & Olle Edholm. (1994). Molecular dynamics simulations of an enzyme surrounded by vacuum, water, or a hydrophobic solvent. Biophysical Journal. 67(2). 548–559. 83 indexed citations
20.
Norin, Martin, Fredrik Hæffner, Adnane Achour, Torbjörn Norin, & Karl Hult. (1994). Computer modeling of substrate binding to lipases from Rhizomucor miehei, Humicola lanuginosa, and Candida rugosa. Protein Science. 3(9). 1493–1503. 46 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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