Américo Lemos

829 total citations
36 papers, 676 citations indexed

About

Américo Lemos is a scholar working on Organic Chemistry, Materials Chemistry and Spectroscopy. According to data from OpenAlex, Américo Lemos has authored 36 papers receiving a total of 676 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Organic Chemistry, 9 papers in Materials Chemistry and 5 papers in Spectroscopy. Recurrent topics in Américo Lemos's work include Synthesis and Catalytic Reactions (8 papers), Synthesis and Characterization of Heterocyclic Compounds (7 papers) and Synthesis of Tetrazole Derivatives (7 papers). Américo Lemos is often cited by papers focused on Synthesis and Catalytic Reactions (8 papers), Synthesis and Characterization of Heterocyclic Compounds (7 papers) and Synthesis of Tetrazole Derivatives (7 papers). Américo Lemos collaborates with scholars based in Portugal, Spain and United Kingdom. Américo Lemos's co-authors include Teresa M. V. D. Pinho e Melo, Susana M. M. Lopes, Ana L. Cardoso, T. L. Gilchrist, Francisco Palácios, João P. Lourenço, A. F. Brigas, Nelson A. M. Pereira, Maria João Rodrigues and Luísa Barreira and has published in prestigious journals such as Chemical Reviews, SHILAP Revista de lepidopterología and The Journal of Organic Chemistry.

In The Last Decade

Américo Lemos

34 papers receiving 658 citations

Peers

Américo Lemos

SPECT

Áron Pintér Germany

Stéphane Perrio France

О. Е. Насакин Russia

М. В. Проскурнина Russia

Shizue Watanabe Japan

L. Yu. Ukhin Russia

Vincent Reboul France

S. Vijay Kumar India

Mirko Sarzi-Amadè Italy

Er‐Jun Hao China

Áron Pintér Germany

Américo Lemos

625 ×1.0

79 ×0.7

89 ×1.7

SPECT

111 ×2.2

78 ×1.7

Citations per year, relative to Américo Lemos Américo Lemos (= 1×) peers Áron Pintér

Countries citing papers authored by Américo Lemos

Since Specialization

Citations

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

Fields of papers citing papers by Américo Lemos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Américo Lemos

This figure shows the co-authorship network connecting the top 25 collaborators of Américo Lemos. A scholar is included among the top collaborators of Américo Lemos 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 Américo Lemos. Américo Lemos 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

Cardoso, Ana L., et al.. (2024). Selective Synthesis of 3-(1H-Tetrazol-5-yl)-indoles from 2H-Azirines and Arynes. ACS Omega. 9(27). 29282–29289.

Lopes, Susana M. M., Américo Lemos, J.A. Paixão, & Teresa M. V. D. Pinho e Melo. (2022). Ethyl 7-Acetyl-8a-methyl-3-(1-phenyl-1H-tetrazol-5-yl)-1,4,4a,5,6,8a-hexahydro-7H-pyrano[2,3-c]pyridazine-1-carboxylate. SHILAP Revista de lepidopterología. 2022(1). M1338–M1338. 1 indexed citations

Brigas, A. F., et al.. (2018). Regioselectivity in Hetero Diels–Alder Reactions. Journal of Chemical Education. 96(1). 148–152. 13 indexed citations

Cardoso, Ana L., Maria João Rodrigues, Cátia F. Marques, et al.. (2016). Hetero-Diels-Alder approach to Bis(indolyl)methanes. Bioorganic & Medicinal Chemistry. 25(3). 1122–1131. 16 indexed citations

Cardoso, Ana L., Américo Lemos, João Varela, et al.. (2015). Novel approach to bis(indolyl)methanes: De novo synthesis of 1-hydroxyiminomethyl derivatives with anti-cancer properties. European Journal of Medicinal Chemistry. 93. 9–15. 46 indexed citations

Nunes, Sandra C. C., Susana M. M. Lopes, Clara S. B. Gomes, et al.. (2014). Reactions of Nitrosoalkenes with Dipyrromethanes and Pyrroles: Insight into the Mechanistic Pathway. The Journal of Organic Chemistry. 79(21). 10456–10465. 28 indexed citations

Cardoso, Ana L., Américo Lemos, & Teresa M. V. D. Pinho e Melo. (2014). Selective Synthesis of Tetrasubstituted 4‐(Tetrazol‐5‐yl)‐1H‐imidazoles from 2‐(Tetrazol‐5‐yl)‐2H‐azirines. European Journal of Organic Chemistry. 2014(24). 5159–5165. 18 indexed citations

Lemos, Américo, Mintu Porel, Steffen Jockusch, et al.. (2013). Phototransformation of benzimidazole and thiabendazole inside cucurbit[8]uril. Photochemical & Photobiological Sciences. 13(2). 310–315. 14 indexed citations

Cardoso, Ana L., et al.. (2013). The Neber Approach to 2-(Tetrazol-5-yl)-2H-Azirines. The Journal of Organic Chemistry. 78(14). 6983–6991. 20 indexed citations

10.

Pereira, Nelson A. M., Américo Lemos, Arménio C. Serra, & Teresa M. V. D. Pinho e Melo. (2013). Functionalization of dipyrromethanes via hetero-Diels–Alder reaction with azo- and nitrosoalkenes. Tetrahedron Letters. 54(12). 1553–1557. 17 indexed citations

11.

Lemos, Américo, Teresa M. V. D. Pinho e Melo, Nelson A. M. Pereira, & Susana M. M. Lopes. (2013). On-Water Synthesis of Dipyrromethanes via Bis-Hetero-Diels–Alder Reaction of Azo- and Nitrosoalkenes with Pyrrole. Synlett. 25(3). 423–427. 22 indexed citations

12.

Lopes, Susana M. M., Francisco Palácios, Américo Lemos, & Teresa M. V. D. Pinho e Melo. (2011). Diels–Alder reactions of 3-(1H-tetrazol-5-yl)-nitrosoalkenes: synthesis of functionalized 5-(substituted)-1H-tetrazoles. Tetrahedron. 67(46). 8902–8909. 27 indexed citations

13.

Lemos, Américo. (2010). Cycloaddition reactions of conjugated azoalkenes. Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT). 1 indexed citations

14.

Lopes, Susana M. M., Américo Lemos, & Teresa M. V. D. Pinho e Melo. (2010). A hetero-Diels–Alder approach to functionalized 1H-tetrazoles: synthesis of tetrazolyl-1,2-oxazines, -oximes and 5-(1-aminoalkyl)-1H-tetrazoles. Tetrahedron Letters. 51(51). 6756–6759. 24 indexed citations

15.

Alves, M. José, Américo Lemos, José E. Rodríguez‐Borges, Xerardo García‐Mera, & A. Gil Fortes. (2009). Ethyl 2-(Diisopropoxyphosphoryl)-2H-azirine-3-carboxylate: Reactions with Nucleophilic 1,3-Dienes. Synthesis. 2009(19). 3263–3266. 5 indexed citations

16.

Lemos, Américo, et al.. (2007). Reactions of Nitrosovinylphosphonates with Electron-Rich Alkenes and Heterocycles. Phosphorus, sulfur, and silicon and the related elements. 182(9). 2149–2155. 13 indexed citations

17.

Alves, M. José, et al.. (2004). Ethyl 3-(2-Pyridyl)-2H-azirine-2-carboxylate: Synthesis and Reaction with Dienes. Synthesis. 2005(4). 555–558. 7 indexed citations

18.

Alves, M. José, et al.. (2003). Intermolecular Alkyl Radical Addition to Methyl 2‐(2,6‐Dichlorophenyl)‐2H‐azirine‐3‐carboxylate.. ChemInform. 34(50). 1 indexed citations

19.

Gilchrist, T. L. & Américo Lemos. (1993). Reaction of pyrroles with ethyl 2-nitroso- and 2-azo-propenoates, and with ethyl cyanoformate N-oxide: a comparison of the reaction pathways. Journal of the Chemical Society Perkin Transactions 1. 1391–1391. 26 indexed citations

20.

Clarke, Simon J., et al.. (1991). Reactions of azoalkenes derived from hydrazones of ethyl bromopyruvate with electron rich alkenes and heterocycles. Tetrahedron. 47(29). 5615–5624. 20 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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