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Paixão DB, Soares EGO, Silva CDG, Peglow TJ, Rampon DS, Schneider PH. CS 2/KOH System-Promoted Stereoselective Synthesis of ( E)-Alkenes from Diarylalkynes and a "Hidden" Zinin-Type Reduction of Nitroarenes into Arylamines. J Org Chem 2023. [PMID: 38010206 DOI: 10.1021/acs.joc.3c01949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
In this work, we present the CS2/KOH system as a practical and efficient reductive medium for obtaining (E)-alkenes from alkynes through a highly stereoselective semireduction reaction. This cost-effective system enabled successful semireduction reactions of diverse alkynes using water as a hydrogen source, yielding moderate to excellent yields. The versatility of this protocol is further demonstrated through the synthesis of relevant compounds such as pinosylvin and resveratrol precursors, along with the notable anticancer agent DMU-212. Furthermore, during the reaction scope investigation, we serendipitously disclosed that this reductive system was also able to promote a Zinin-type reaction to reduce nitroarenes into arylamines.
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Affiliation(s)
- Douglas B Paixão
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Eduardo G O Soares
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Caren D G Silva
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Thiago J Peglow
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Daniel S Rampon
- Laboratório de Polímeros e Catálise (LAPOCA), Departamento de Química, Universidade Federal do Paraná (UFPR), P.O. Box 19061, 81531-990 Curitiba, PR, Brazil
| | - Paulo H Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
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Paixão DB, Soares EGO, Salles HD, Silva CDG, Rampon DS, Schneider PH. Rongalite in PEG-400 as a general and reusable system for the synthesis of 2,5-disubstituted chalcogenophenes. Org Chem Front 2022. [DOI: 10.1039/d2qo01069k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein we report the use of rongalite in PEG-400 as a general, efficient, and environmentally benign reductive system for the synthesis of a wide range of 2,5-disubstituted chalcogenophenes from elemental sulfur, selenium and tellurium.
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Affiliation(s)
- Douglas B. Paixão
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Eduardo G. O. Soares
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Helena D. Salles
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Caren D. G. Silva
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Daniel S. Rampon
- Laboratório de Polímeros e Catálise (LAPOCA), Departamento de Química, Universidade Federal do Paraná (UFPR), P.O. Box 19061, 81531-990, Curitiba, PR, Brazil
| | - Paulo H. Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
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Katla R, Katla R, Silva CDG, Santos BF, Branquinho TA, Ferro CTB, Domingues NLC. [Zn(
L
‐Pro)
2
] as a Simple and Efficient Catalyst: A Convenient Route for the Synthesis of Thia‐Michael Derivatives via Green Chemical Approach. ChemistrySelect 2019. [DOI: 10.1002/slct.201903068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ramesh Katla
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Rakhi Katla
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Caren D. G. Silva
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Beatriz F. Santos
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Tábata A. Branquinho
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Criscieli T. B. Ferro
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Nelson L. C. Domingues
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
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Tavares Junior JMC, Silva CDG, dos Santos BF, da Silva BAL, de Oliveira AR, Kupfer VL, Rinaldi AW, Domingues NLC. A Novel and Efficient Methodology for the Synthesis of Vinylamide Derivatives Using [Ce(L‐Pro)2]2Ox as Heterogeneous Catalyst. ChemistrySelect 2018. [DOI: 10.1002/slct.201800760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- José M. C. Tavares Junior
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
| | - Caren D. G. Silva
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
| | - Beatriz F. dos Santos
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
| | - Beatriz A. L. da Silva
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
| | - Aline R. de Oliveira
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
| | - Vicente L. Kupfer
- Material Chemistry and Sensores Laboratory-LMSenState University of Maringá-UEM Av. Colombo 5790, Zona 7 Maringá/Pr Brazil
| | - Andrelson W. Rinaldi
- Material Chemistry and Sensores Laboratory-LMSenState University of Maringá-UEM Av. Colombo 5790, Zona 7 Maringá/Pr Brazil
| | - Nelson Luís C. Domingues
- Organic Catalysis and Biocatalysis Laboratory - LACOBFederal University of Grande Dourados - UFGD Dourados/MS Brazil, Tel: +55(67) 3410 2081
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