Nikolaus Risch

2.5k total citations · 1 hit paper
96 papers, 2.1k citations indexed

About

Nikolaus Risch is a scholar working on Organic Chemistry, Molecular Biology and Materials Chemistry. According to data from OpenAlex, Nikolaus Risch has authored 96 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Organic Chemistry, 39 papers in Molecular Biology and 20 papers in Materials Chemistry. Recurrent topics in Nikolaus Risch's work include Chemical Synthesis and Analysis (23 papers), Asymmetric Synthesis and Catalysis (15 papers) and Synthetic Organic Chemistry Methods (15 papers). Nikolaus Risch is often cited by papers focused on Chemical Synthesis and Analysis (23 papers), Asymmetric Synthesis and Catalysis (15 papers) and Synthetic Organic Chemistry Methods (15 papers). Nikolaus Risch collaborates with scholars based in Germany, Netherlands and Sri Lanka. Nikolaus Risch's co-authors include Michael Arend, Bernhard Westermann, Hans Brockmann, Andreas Winter, Elisabeth Holder, Michael Schäferling, Lorenz H. Fischer, Ülrich Flörke, Otto S. Wolfbeis and Robert J. Meier and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and The Journal of Organic Chemistry.

In The Last Decade

Nikolaus Risch

94 papers receiving 2.0k citations

Hit Papers

Modern Variants of the Mannich Reaction 1998 2026 2007 2016 1998 250 500 750
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.

  1. Modern Variants of the Mannich Reaction
    1998 972 citations Michael Arend, Nikolaus Risch et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nikolaus Risch Germany 18 1.7k 692 332 290 136 96 2.1k
Subhash C. Narang United States 26 1.9k 1.2× 498 0.7× 376 1.1× 289 1.0× 228 1.7× 58 2.4k
Diego Savoia Italy 27 2.0k 1.2× 551 0.8× 751 2.3× 185 0.6× 140 1.0× 99 2.2k
Rolf Scheffold Switzerland 23 1.3k 0.8× 734 1.1× 385 1.2× 425 1.5× 171 1.3× 69 2.1k
Pedro J. Campos Spain 29 1.9k 1.1× 293 0.4× 468 1.4× 297 1.0× 92 0.7× 105 2.3k
P. Caubère France 27 2.4k 1.4× 333 0.5× 580 1.7× 168 0.6× 138 1.0× 207 2.7k
Anil S. Guram United States 24 2.7k 1.6× 354 0.5× 705 2.1× 266 0.9× 59 0.4× 33 3.0k
John A. Soderquist Puerto Rico 30 2.6k 1.6× 464 0.7× 644 1.9× 121 0.4× 118 0.9× 115 2.9k
Kakali Lahiri India 14 2.6k 1.6× 427 0.6× 265 0.8× 343 1.2× 60 0.4× 21 2.9k
Stefano Maiorana Italy 27 1.8k 1.1× 567 0.8× 297 0.9× 475 1.6× 253 1.9× 146 2.4k
Ciril Jimeno Spain 24 1.8k 1.1× 646 0.9× 653 2.0× 177 0.6× 189 1.4× 53 2.1k

Countries citing papers authored by Nikolaus Risch

Since Specialization
Citations

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

Fields of papers citing papers by Nikolaus Risch

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nikolaus Risch

This figure shows the co-authorship network connecting the top 25 collaborators of Nikolaus Risch. A scholar is included among the top collaborators of Nikolaus Risch 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 Nikolaus Risch. Nikolaus Risch 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.
Kourkoulos, Dimitrios, Dirk Hertel, Ronald Alle, et al.. (2013). Photophysical properties and OLED performance of light-emitting platinum(ii) complexes. Dalton Transactions. 42(37). 13612–13612. 44 indexed citations
2.
Fischer, Lorenz H., Robert J. Meier, Nikolaus Risch, et al.. (2012). Referenced Dual Pressure‐ and Temperature‐Sensitive Paint for Digital Color Camera Read Out. Chemistry - A European Journal. 18(49). 15706–15713. 46 indexed citations
3.
Fischer, Lorenz H., et al.. (2012). Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes. Dalton Transactions. 41(32). 9623–9623. 43 indexed citations
4.
Altuntaş, Esra, Andreas Winter, Anja Baumgaertel, et al.. (2011). Determination of the relative ligand‐binding strengths in heteroleptic IrIII complexes by ESI‐Q‐TOF tandem mass spectrometry. Journal of Mass Spectrometry. 47(1). 34–40. 7 indexed citations
5.
Risch, Nikolaus, et al.. (2005). An Efficient Synthesis of Novel α‐Aminophosphonates Based on a Mannich‐Type Reaction. European Journal of Organic Chemistry. 2005(2). 387–394. 9 indexed citations
6.
Winter, Andreas, et al.. (2004). Selective synthesis of U-shaped terpyridines. Versatile ligands for the preparation of platinum complexes. Organic & Biomolecular Chemistry. 2(6). 863–868. 14 indexed citations
7.
Risch, Nikolaus, et al.. (2004). Direct Aminoalkylation of α‐Branched Aldehydes with in situ Generated Glycine Cation Equivalents.. ChemInform. 35(45). 1 indexed citations
8.
Risch, Nikolaus & Andreas Winter. (2003). Cross Mannich Reaction of Aldehydes; Efficient Synthesis of Substituted Pyridines. Synthesis. 2667–2670. 3 indexed citations
9.
Risch, Nikolaus, et al.. (2003). γ-Regioselectivity of (furan-2-yloxy)-trimethyl-silane towards iminium salts: synthesis of γ-arylidenebutenolides. ARKIVOC. 2003(1). 86–92. 9 indexed citations
10.
Risch, Nikolaus, et al.. (2002). Efficient Synthesis of Diastereomerically Pure 1,3-Diamines. Synthesis. 1365–1372. 7 indexed citations
11.
Risch, Nikolaus, et al.. (1999). . Journal für praktische Chemie. 341(7). 616–619. 1 indexed citations
12.
Risch, Nikolaus, et al.. (1998). Dominosequenzen zur Darstellung etherverbr�ckter, polycyclischer Mono- und Bipyridine. Journal für praktische Chemie. 340(5). 424–429. 3 indexed citations
13.
Risch, Nikolaus, et al.. (1998). Efficient Synthesis of γ-Oxo- and γ-Hydroxy-α-amino Acids. Synthesis. 1998(11). 1609–1614. 7 indexed citations
14.
Arend, Michael, et al.. (1997). A Simple and Highly Diastereoselective One-Pot Synthesis of 1,3-Diamines. Synlett. 1997(2). 177–178. 16 indexed citations
15.
Risch, Nikolaus, et al.. (1997). Synthesis of carbon-carbon linked porphyrinoligomers by utilization of Heck-type coupling of natural tetrapyrroles. Tetrahedron Letters. 38(2). 223–224. 17 indexed citations
16.
Risch, Nikolaus, et al.. (1994). 3.5-Di-tert-butylstyrole: Synthese sterisch anspruchsvoller Polymerbausteine / 3.5-Di-tert-butylstyrenes: Synthesis of Bulky Polymer Building Blocks. Zeitschrift für Naturforschung B. 49(1). 141–144. 4 indexed citations
17.
Risch, Nikolaus, et al.. (1979). Partialsynthese eines stereochemisch einheitlichen bacteriochlorophylls D. Tetrahedron Letters. 20(44). 4257–4260. 1 indexed citations
18.
Brockmann, Hans, et al.. (1976). Zur absoluten Konfiguration der Chlorophylle, VII. Bacteriochlorophyll e, ein neues Chlorophyll aus braunen Arten von Chlorobiaceae. Justus Liebig s Annalen der Chemie. 1976(3). 566–577. 16 indexed citations
19.
Brockmann, Hans & Nikolaus Risch. (1974). Modified Horeau Analysis for Determination of the Chirality of Amines, Alcohols, and Carboxylic Acids. Angewandte Chemie International Edition in English. 13(10). 664–665. 3 indexed citations
20.
Brockmann, Hans & Nikolaus Risch. (1974). Modifizierte Horeau‐Analyse zur Chiralitätsbestimmung von Aminen, Alkoholen und Carbonsäuren. Angewandte Chemie. 86(19). 707–708. 3 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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