Allan D. Headley

3.3k total citations · 1 hit paper
67 papers, 2.8k citations indexed

About

Allan D. Headley is a scholar working on Organic Chemistry, Catalysis and Physical and Theoretical Chemistry. According to data from OpenAlex, Allan D. Headley has authored 67 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Organic Chemistry, 26 papers in Catalysis and 11 papers in Physical and Theoretical Chemistry. Recurrent topics in Allan D. Headley's work include Asymmetric Synthesis and Catalysis (32 papers), Ionic liquids properties and applications (25 papers) and Chemical Synthesis and Reactions (23 papers). Allan D. Headley is often cited by papers focused on Asymmetric Synthesis and Catalysis (32 papers), Ionic liquids properties and applications (25 papers) and Chemical Synthesis and Reactions (23 papers). Allan D. Headley collaborates with scholars based in United States and Malaysia. Allan D. Headley's co-authors include Bukuo Ni, C. F. Pau, Robert W. Taft, R. D. Topsom, Warren J. Hehre, Qianying Zhang, Guigen Li, Yupu Qiao, Stephen D. Starnes and S. R. S. Saibabu Kotti and has published in prestigious journals such as Journal of the American Chemical Society, Green Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Allan D. Headley

67 papers receiving 2.7k citations

Hit Papers

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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.

A scale of directional substituent polarizability parameters from ab initio calculations of polarizability potentials

1986 1.1k citations Warren J. Hehre, C. F. Pau et al. Journal of the American Chemical Society profile →

Peers

Countries citing papers authored by Allan D. Headley

Since Specialization

Citations

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

Fields of papers citing papers by Allan D. Headley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Allan D. Headley. 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 Allan D. Headley. The network helps show where Allan D. Headley may publish in the future.

Co-authorship network of co-authors of Allan D. Headley

This figure shows the co-authorship network connecting the top 25 collaborators of Allan D. Headley. A scholar is included among the top collaborators of Allan D. Headley 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 Allan D. Headley. Allan D. Headley 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	A highly enantioselective [4+2] cycloaddition involving aldehydes and β,γ-unsaturated-α-keto esters 2017 ·Tetrahedron Asymmetry ·(unknown), (unknown), Allan D. Headley	5
2	Asymmetric Michael reactions catalyzed by a highly efficient and recyclable quaternary ammonium ionic liquid-supported organocatalyst in aqueous media 2013 ·Organic & Biomolecular Chemistry ·Subrata Ghosh, Yupu Qiao, Bukuo Ni, Allan D. Headley	20
3	Ionic Liquid Immobilized Organocatalysts for Asymmetric Reactions in Aqueous Media 2013 ·Catalysts ·Yupu Qiao, Allan D. Headley	33
4	Highly enantioselective and recyclable organocatalytic Michael addition of malonates to α,β-unsaturated aldehydes in aqueous media 2012 ·Organic & Biomolecular Chemistry ·Subrata Ghosh, (unknown), Allan D. Headley, Bukuo Ni	27
5	Chiral amine organocatalysts for the syn-aldol reaction involving substituted benzaldehydes and hydroxyacetone 2011 ·Tetrahedron Asymmetry ·Dhruba Sarkar, (unknown), Subrata Ghosh, Allan D. Headley	12
6	The Application of a Recyclable Organocatalytic System to the Asymmetric Domino Michael/Henry Reaction in Aqueous Media 2011 ·Advanced Synthesis & Catalysis ·(unknown), Subrata Ghosh, (unknown), Allan D. Headley, Bukuo Ni	47
7	ChemInform Abstract: A Novel Recyclable Organocatalytic System for the Highly Asymmetric Michael Addition of Aldehydes to Nitroolefins in Water. 2011 ·ChemInform ·Dhruba Sarkar, (unknown), Allan D. Headley, Bukuo Ni	4
8	Ionic‐Liquid‐Supported (ILS) Catalysts for Asymmetric Organic Synthesis 2010 ·Chemistry - A European Journal ·Bukuo Ni, Allan D. Headley	121
9	Di(methylimidazole)prolinol Silyl Ether Catalyzed Highly Michael Addition of Aldehydes to Nitroolefins in Water 2009 ·Organic Letters ·(unknown), Bukuo Ni, Allan D. Headley	56
10	Design and synthesis of bistereogenic chiral ionic liquids and their use as solvents for asymmetric Baylis–Hillman reactions 2008 ·Organic & Biomolecular Chemistry ·(unknown), (unknown), Bukuo Ni, Allan D. Headley	22
11	Pyrrolidine-based chiral pyridinium ionic liquids (ILs) as recyclable and highly efficient organocatalysts for the asymmetric Michael addition reactions 2007 ·Tetrahedron Letters ·Bukuo Ni, Qianying Zhang, Allan D. Headley	106
12	Ionic Liquid, 1‐n‐Butyl‐3‐methylimidazolium Bis(trifluoromethanesulfonyl)imide, Resulted in the First Catalyst‐Free Aminohalogenation of Electron‐Deficient Alkenes 2007 ·Advanced Synthesis & Catalysis ·Yining Wang, Bukuo Ni, Allan D. Headley, Guigen Li	28
13	Functionalized Chiral Ionic Liquid as Recyclable Organocatalyst for Asymmetric Michael Addition to Nitrostyrenes. 2007 ·ChemInform ·Bukuo Ni, Qianying Zhang, Allan D. Headley	1
14	Design and Synthesis of C-2 Substituted Chiral Imidazolium Ionic Liquids from Amino Acid Derivatives 2005 ·The Journal of Organic Chemistry ·Bukuo Ni, Allan D. Headley, Guigen Li	34
15	The effect of the cyclopropyl group on the conformation of chemotactic formyl tripeptides 2003 ·Bioorganic Chemistry ·Allan D. Headley, (unknown), Jaewook Nam	5
16	A Catalytic Reaction of Alkynes via Multiple-Site Functionalization 2003 ·Journal of the American Chemical Society ·(unknown), S. R. S. Saibabu Kotti, Xin Xu, John F. Cannon, Allan D. Headley, Guigen Li	33
17	The effect of the anion on the chemical shifts of the aromatic hydrogen atoms of liquid 1‐butyl‐3‐methylimidazolium salts 2001 ·Journal of Physical Organic Chemistry ·Allan D. Headley, (unknown)	115
18	Theoretical studies on the gas phase tautomerization of N,N-dimethylglycine 1998 ·Journal of Molecular Structure THEOCHEM ·Allan D. Headley, Stephen D. Starnes	6
19	Substituent effects on the basicity of dimethylamines 1987 ·Journal of the American Chemical Society ·Allan D. Headley	25
20	A scale of directional substituent polarizability parameters from ab initio calculations of polarizability potentials breakdown → 1986 ·Journal of the American Chemical Society ·Warren J. Hehre, C. F. Pau, Allan D. Headley, Robert W. Taft, R. D. Topsom	1128

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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