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Bruña S, Valverde-González A, Montero-Campillo MM, Mó O, Cuadrado I. Thiol-yne chemistry of diferrocenylacetylene: from synthesis and electrochemistry to theoretical studies. Dalton Trans 2022; 51:15412-15424. [PMID: 36156664 DOI: 10.1039/d2dt02378d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thiol-yne coupling chemistry of diferrocenylacetylene (FcCCFc) 1, bearing two electron rich and redox-active ferrocenyl units (Fc = Fe(η5-C5H4)(η5-C5H5)) and an internal triple bond, has been investigated for the first time. In order to determine whether steric limitations might affect hydrothiolation, a model reaction using a functionalized monothiol was tested, namely 2-mercaptoethanol I. The thiol-diferrocenylacetylene reactions were initiated either thermally (in toluene with AIBN) or by UV light irradiation (in THF and in the presence of DMPA as the photoinitiator). The outcomes of these thiol-yne reactions showed a strong dependence on the initiation method used, with the thermally initiated one being the most efficient. These thiol-diferrocenylacetylene reactions mainly afforded the (Z)-stereoisomer of the newly obtained vinyl thioether sulfide FcCHC(Fc)S-(CH2)2OH (2), unlike the more common (E)-vinyl sulfides found in other additions to alkynes. The hydrothiolation of the internal -CC- bond in 1 was successfully extended to dithiol 2,2'-(ethylenedioxy)diethanethiol II, leading to the formation of the (ZZ)-isomer, with four ferrocenyl units, as the major product. According to the electrochemical studies, the new asymmetrical ferrocenyl-vinyl sulfides show iron-iron electronic and electrostatic interactions. Theoretical results for the (Z)-stereoisomer (2) suggest that adiabatic oxidation would lead to the loss of almost one electron on the ferrocenyl subunit closer to the thioether chain. Furthermore, the thiol-yne chemistry of the internal -CC- bond in diferrocenylacetylene has been compared to the external triple bond in ethynylferrocene, the theoretical results of which helped us to rationalize the very different reactivities observed in both metallocenes.
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Affiliation(s)
- Sonia Bruña
- Departamento de Química Inorgánica, Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Antonio Valverde-González
- Departamento de Química Inorgánica, Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
| | - M Merced Montero-Campillo
- Departamento de Química, Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Otilia Mó
- Institute for Advanced Research in Chemical Sciences (IAdChem), Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.,Departamento de Química, Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química Inorgánica, Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain. .,Institute for Advanced Research in Chemical Sciences (IAdChem), Facultad de Ciencias, Calle Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
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Brites NP, Dilelio MC, Schumacher RF, Kaufman TS, Silveira CC. A Convenient Wittig‐Horner Mediated Synthesis of 3‐Vinylsulfide Derivatives of Indoles. ChemistrySelect 2022. [DOI: 10.1002/slct.202201350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nathan P. Brites
- Departamento de Química Universidade Federal de Santa Maria Santa Maria RS 97105-900 Brazil
| | - Marina C. Dilelio
- Departamento de Química Universidade Federal de Santa Maria Santa Maria RS 97105-900 Brazil
| | - Ricardo F. Schumacher
- Departamento de Química Universidade Federal de Santa Maria Santa Maria RS 97105-900 Brazil
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) Suipacha 531 Rosario, SF S2002LRK Argentina
| | - Claudio C. Silveira
- Departamento de Química Universidade Federal de Santa Maria Santa Maria RS 97105-900 Brazil
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"Green Is the Color": An Update on Ecofriendly Aspects of Organoselenium Chemistry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27051597. [PMID: 35268698 PMCID: PMC8911681 DOI: 10.3390/molecules27051597] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/07/2023]
Abstract
Organoselenium compounds have been successfully applied in biological, medicinal and material sciences, as well as a powerful tool for modern organic synthesis, attracting the attention of the scientific community. This great success is mainly due to the breaking of paradigm demonstrated by innumerous works, that the selenium compounds were toxic and would have a potential impact on the environment. In this update review, we highlight the relevance of these compounds in several fields of research as well as the possibility to synthesize them through more environmentally sustainable methodologies, involving catalytic processes, flow chemistry, electrosynthesis, as well as by the use of alternative energy sources, including mechanochemical, photochemistry, sonochemical and microwave irradiation.
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Palomba M, Franco Coelho Dias I, Rosati O, Marini F. Modern Synthetic Strategies with Organoselenium Reagents: A Focus on Vinyl Selenones. Molecules 2021; 26:molecules26113148. [PMID: 34070372 PMCID: PMC8197542 DOI: 10.3390/molecules26113148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022] Open
Abstract
In recent years, vinyl selenones were rediscovered as useful building blocks for new synthetic transformations. This review will highlight these advances in the field of multiple-bond-forming reactions, one-pot synthesis of carbo- and heterocycles, enantioselective construction of densely functionalized molecules, and total synthesis of natural products.
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Hellwig PS, Peglow TJ, Penteado F, Bagnoli L, Perin G, Lenardão EJ. Recent Advances in the Synthesis of Selenophenes and Their Derivatives. Molecules 2020; 25:E5907. [PMID: 33322179 PMCID: PMC7764687 DOI: 10.3390/molecules25245907] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/25/2022] Open
Abstract
The selenophene derivatives are an important class of selenium-based heterocyclics. These compounds play an important role in prospecting new drugs, as well as in the development of new light-emitting materials. During the last years, several methods have been emerging to access the selenophene scaffold, employing a diversity of cyclization-based synthetic strategies, involving specific reaction partners and particularities. This review presents a comprehensive discussion on the recent advances in the synthesis of selenophene-based compounds, starting from different precursors, highlighting the main differences, the advantages, and limitations among them.
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Affiliation(s)
- Paola S. Hellwig
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Thiago J. Peglow
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Filipe Penteado
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Luana Bagnoli
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy;
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
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Palomba M, Trappetti F, Bagnoli L, Santi C, Marini F. Oxone-Mediated Oxidation of Vinyl Selenides in Water. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800498] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Martina Palomba
- Department of Pharmaceutical Sciences; Group of Catalysis and Organic Green Chemistry; University of Perugia; Via del Liceo, 1 06123 Perugia Italy
| | - Francesco Trappetti
- Department of Pharmaceutical Sciences; Group of Catalysis and Organic Green Chemistry; University of Perugia; Via del Liceo, 1 06123 Perugia Italy
| | - Luana Bagnoli
- Department of Pharmaceutical Sciences; Group of Catalysis and Organic Green Chemistry; University of Perugia; Via del Liceo, 1 06123 Perugia Italy
| | - Claudio Santi
- Department of Pharmaceutical Sciences; Group of Catalysis and Organic Green Chemistry; University of Perugia; Via del Liceo, 1 06123 Perugia Italy
| | - Francesca Marini
- Department of Pharmaceutical Sciences; Group of Catalysis and Organic Green Chemistry; University of Perugia; Via del Liceo, 1 06123 Perugia Italy
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Glycerol as Precursor of Organoselanyl and Organotellanyl Alkynes. Molecules 2017; 22:molecules22030391. [PMID: 28257120 PMCID: PMC6155406 DOI: 10.3390/molecules22030391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/22/2017] [Accepted: 02/28/2017] [Indexed: 11/16/2022] Open
Abstract
Herein we describe the synthesis of organoselanyl and organotellanyl alkynes by the addition of lithium alkynylchalcogenolate (Se and Te) to tosyl solketal, easily obtained from glycerol. The alkynylchalcogenolate anions were generated in situ and added to tosyl solketal in short reaction times, furnishing in all cases the respective products of substitution in good yields. Some of the prepared compounds were deprotected using an acidic resin to afford new water-soluble 3-organotellanylpropane-1,2-diols. The synthetic versatility of the new chalcogenyl alkynes was demonstrated in the iodocyclization of 2,2-dimethyl-1,3-dioxolanylmethyl(2-methoxyphenylethynyl)selane 3f, which afforded 3-iodo-2-(2,2-dimethyl-1,3-dioxolanylmethyl) selenanylbenzo[b]furan in 85% yield, opening a new way to access water-soluble Se-functionalized benzo[b]furanes.
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