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Garg V, Kumar P, Verma AK. Substrate-Controlled Regio- and Stereoselective Synthesis of ( Z)- and ( E)- N-Styrylated Carbazoles, Aza-carbazoles, and γ-Carbolines via Hydroamination of Alkynes. J Org Chem 2018; 83:11686-11702. [PMID: 30141931 DOI: 10.1021/acs.joc.8b01642] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We report herein the substrate-controlled regio- and stereoselective hydroamination of carbazoles, aza-carbazoles, and γ-carbolines with functionalized aromatic as well as aliphatic alkynes in a KOH/DMSO system in good yields. The electronic effect of the substrates governs the stereochemistry of the product. Electron-donating alkynes provided ( Z)-stereoselective products, and electron-withdrawing alkynes provided ( E)-stereoselective products. This approach also provides an easy route for the synthesis of mono- and bis-hydroaminated product. The deuterium-labeling studies were also conducted to support the mechanistic pathway.
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Affiliation(s)
- Vineeta Garg
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Pradeep Kumar
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Akhilesh K Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India
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1-(Triethoxysilyl)buta-1,3-dienes-New Building Blocks for Stereoselective Synthesis of Unsymmetrical ( E, E)-1,4-Disubstituted 1,3-dienes. MATERIALS 2015; 8:7250-7256. [PMID: 28793635 PMCID: PMC5458880 DOI: 10.3390/ma8115378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 10/14/2015] [Indexed: 11/28/2022]
Abstract
A convenient methodology for the highly stereoselective synthesis of unsymmetrical (1E,3E)-1,4-disubstituted 1,3-dienes based on palladium-catalyzed Hiyama cross-coupling reaction of 1-(triethoxysilyl)-substituted buta-1,3-dienes with aryl iodides is reported.
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Szudkowska-Frątczak J, Hreczycho G, Pawluć P. Silylative coupling of olefins with vinylsilanes in the synthesis of functionalized alkenes. Org Chem Front 2015. [DOI: 10.1039/c5qo00018a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Recent developments in the sequential synthetic strategies including ruthenium-catalyzed silylative coupling followed by desilylation, leading to π-conjugated organic derivatives are presented.
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Affiliation(s)
| | - Grzegorz Hreczycho
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan
- 61-614 Poznan
- Poland
| | - Piotr Pawluć
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan
- 61-614 Poznan
- Poland
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Sore HF, Galloway WRJD, Spring DR. Palladium-catalysed cross-coupling of organosilicon reagents. Chem Soc Rev 2011; 41:1845-66. [PMID: 22048071 DOI: 10.1039/c1cs15181a] [Citation(s) in RCA: 287] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The palladium catalysed cross-coupling of organosilicon reagents with organo halides and pseudo-halides has developed over the past 30 years into an efficient and attractive carbon-carbon bond forming strategy. Extensive research within this field to expand and diversify on the scope of the organosilicon coupling reaction will continue to promote its use in the synthesis of biologically and pharmaceutically important organic molecules. The recent advances made within this area are explored in this critical review (199 references).
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Affiliation(s)
- Hannah F Sore
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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The mixed carbon–nitrogen conjugation in the carbazole based polymer; the electrochemical, UVVis, EPR, and IR studies on 1,4 bis[(E)2-(9H-carbazol-9-yl)vinyl]benzene. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.01.114] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Pawluć P, Franczyk A, Walkowiak J, Hreczycho G, Kubicki M, Marciniec B. (E)-9-(2-Iodovinyl)-9H-carbazole: A New Coupling Reagent for the Synthesis of π-Conjugated Carbazoles. Org Lett 2011; 13:1976-9. [DOI: 10.1021/ol200350a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Piotr Pawluć
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Adrian Franczyk
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Jȩdrzej Walkowiak
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Grzegorz Hreczycho
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Maciej Kubicki
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Bogdan Marciniec
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
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Dudziec B, Rzonsowska M, Marciniec B. A new protocol for synthesis of bifunctional alkynyl[vinyl or (E)-alkenyl]substituted organosilicon compounds. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pawluć P, Prukała W, Marciniec B. Silylative Coupling of Olefins with Vinylsilanes in the Synthesis of π‐Conjugated Double Bond Systems. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900883] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Piotr Pawluć
- Department of Organometallic Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60‐780 Poznan, Poland, Fax: +48‐618‐291‐508
| | - Wiesław Prukała
- Department of Organometallic Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60‐780 Poznan, Poland, Fax: +48‐618‐291‐508
| | - Bogdan Marciniec
- Department of Organometallic Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60‐780 Poznan, Poland, Fax: +48‐618‐291‐508
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Pawluć P, Hreczycho G, Szudkowska J, Kubicki M, Marciniec B. New One-Pot Synthesis of (E)-β-Aryl Vinyl Halides from Styrenes. Org Lett 2009; 11:3390-3. [DOI: 10.1021/ol901233j] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Piotr Pawluć
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Grzegorz Hreczycho
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Justyna Szudkowska
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Maciej Kubicki
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Bogdan Marciniec
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
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Hiyama reaction of aryl bromides with arylsiloxanes catalyzed by a reusable palladium(II)/cationic bipyridyl system in water. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marciniec B. Catalytic coupling of sp2- and sp-hybridized carbon-hydrogen bonds with vinylmetalloid compounds. Acc Chem Res 2007; 40:943-52. [PMID: 17937482 DOI: 10.1021/ar700116f] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the Account given herein, it has been shown that silylative coupling of olefins, well-recognized as a new catalytic route for the activation of double bond C-H bond of olefins and double bond C-Si bond of vinylsilicon compounds with ethylene elimination, can be extended over both other vinylmetalloid derivatives (double bond C-E) (where E = Ge, B, and others) as well as the activation of triple bond C-H, double bond C aryl-H, and -O-H bond of alcohols and silanols. This general transformation is catalyzed by transition-metal complexes (mainly Ru and Rh) containing or initiating TM-H and/or TM-E bonds (inorganometallics). This new general catalytic route for the activation of double bond C-H and triple bond C-H as well as double bond C-E bonds called metallative coupling or trans-metalation (cross-coupling, ring-closing, and polycondensation) constitutes an efficient method (complementary to metathesis) for stereo- and regioselective synthesis of a variety of molecular and macromolecular compounds of vinyl-E (E = Si, B, and Ge) and ethynyl-E (E = Si and Ge) functionality, also potent organometallic reagents for efficient synthesis of highly pi-conjugated organic compounds. The mechanisms of the catalysis of this deethenative metalation have been supported by equimolar reactions of TM-H and/or TM-E with initial substances and reactions with deuterium-labeled reagents.
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Affiliation(s)
- Bogdan Marciniec
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
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