Kokotos, Christoforos G.

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  • Kokotos, Christoforos G. (3)
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Author's Bibliography

Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction

Džambaski, Zdravko; Bondžić, Aleksandra M.; Triandafillidi, Ierasia; Kokotos, Christoforos G.; Bondžić, Bojan

(Wiley, 2021)

TY  - JOUR
AU  - Džambaski, Zdravko
AU  - Bondžić, Aleksandra M.
AU  - Triandafillidi, Ierasia
AU  - Kokotos, Christoforos G.
AU  - Bondžić, Bojan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4823
AB  - Herein, we demonstrate that organic, single-electron oxidant in the presence of diarylprolinol silylether type catalyst serves as a tool for the transformation of electron-rich enamines to iminium ions. These iminium ions take part in a subsequent Michael-initiated ring-closure (MIRC) reaction with in situ present nucleophile giving rise to overall cyclopropanation reaction of saturated aldehydes. Stereodefined cyclopropanes are obtained in high yields and selectivities. This one-pot transformation represents the additional example of saturated aldehydes being used in the coupled one-pot processes. (Figure presented.).
PB  - Wiley
T2  - Advanced Synthesis and Catalysis
T1  - Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction
VL  - 363
IS  - 16
SP  - 4002
EP  - 4008
DO  - 10.1002/adsc.202100630
ER  - 
@article{
author = "Džambaski, Zdravko and Bondžić, Aleksandra M. and Triandafillidi, Ierasia and Kokotos, Christoforos G. and Bondžić, Bojan",
year = "2021",
abstract = "Herein, we demonstrate that organic, single-electron oxidant in the presence of diarylprolinol silylether type catalyst serves as a tool for the transformation of electron-rich enamines to iminium ions. These iminium ions take part in a subsequent Michael-initiated ring-closure (MIRC) reaction with in situ present nucleophile giving rise to overall cyclopropanation reaction of saturated aldehydes. Stereodefined cyclopropanes are obtained in high yields and selectivities. This one-pot transformation represents the additional example of saturated aldehydes being used in the coupled one-pot processes. (Figure presented.).",
publisher = "Wiley",
journal = "Advanced Synthesis and Catalysis",
title = "Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction",
volume = "363",
number = "16",
pages = "4002-4008",
doi = "10.1002/adsc.202100630"
}
Džambaski, Z., Bondžić, A. M., Triandafillidi, I., Kokotos, C. G.,& Bondžić, B.. (2021). Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction. in Advanced Synthesis and Catalysis
Wiley., 363(16), 4002-4008.
https://doi.org/10.1002/adsc.202100630
Džambaski Z, Bondžić AM, Triandafillidi I, Kokotos CG, Bondžić B. Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction. in Advanced Synthesis and Catalysis. 2021;363(16):4002-4008.
doi:10.1002/adsc.202100630 .
Džambaski, Zdravko, Bondžić, Aleksandra M., Triandafillidi, Ierasia, Kokotos, Christoforos G., Bondžić, Bojan, "Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction" in Advanced Synthesis and Catalysis, 363, no. 16 (2021):4002-4008,
https://doi.org/10.1002/adsc.202100630 . .
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Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction

Džambaski, Zdravko; Tzaras, Dimitrios‐Ioannis; Lee, Sunggi; Kokotos, Christoforos G.; Bondžić, Bojan

(Wiley, 2019)

TY  - JOUR
AU  - Džambaski, Zdravko
AU  - Tzaras, Dimitrios‐Ioannis
AU  - Lee, Sunggi
AU  - Kokotos, Christoforos G.
AU  - Bondžić, Bojan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2953
AB  - α,β‐unsaturated aldehydes have been traditionally used in LUMO lowering asymmetric aminocatalysis (iminium catalysis), while the use of saturated aldehydes as substrates in this type of catalysis has been elusive, until recently. Herein, we demonstrate that organic, single‐electron oxidants in the presence of diarylprolinol silylether type catalysts serve as effective tools for the transformation of electron rich enamines to iminium ions which partake in a subsequent Diels‐Alder reaction. This enantioselective one‐pot transformation represents the first example of saturated aldehydes being used in domino Diels‐Alder reaction processes and demonstrates the power of this protocol for construction of stereo‐defined chiral compounds and building blocks.
PB  - Wiley
T2  - Advanced Synthesis & Catalysis
T1  - Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction
VL  - 361
IS  - 8
SP  - 1792
EP  - 1797
DO  - 10.1002/adsc.201900061
ER  - 
@article{
author = "Džambaski, Zdravko and Tzaras, Dimitrios‐Ioannis and Lee, Sunggi and Kokotos, Christoforos G. and Bondžić, Bojan",
year = "2019",
abstract = "α,β‐unsaturated aldehydes have been traditionally used in LUMO lowering asymmetric aminocatalysis (iminium catalysis), while the use of saturated aldehydes as substrates in this type of catalysis has been elusive, until recently. Herein, we demonstrate that organic, single‐electron oxidants in the presence of diarylprolinol silylether type catalysts serve as effective tools for the transformation of electron rich enamines to iminium ions which partake in a subsequent Diels‐Alder reaction. This enantioselective one‐pot transformation represents the first example of saturated aldehydes being used in domino Diels‐Alder reaction processes and demonstrates the power of this protocol for construction of stereo‐defined chiral compounds and building blocks.",
publisher = "Wiley",
journal = "Advanced Synthesis & Catalysis",
title = "Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction",
volume = "361",
number = "8",
pages = "1792-1797",
doi = "10.1002/adsc.201900061"
}
Džambaski, Z., Tzaras, D., Lee, S., Kokotos, C. G.,& Bondžić, B.. (2019). Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. in Advanced Synthesis & Catalysis
Wiley., 361(8), 1792-1797.
https://doi.org/10.1002/adsc.201900061
Džambaski Z, Tzaras D, Lee S, Kokotos CG, Bondžić B. Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. in Advanced Synthesis & Catalysis. 2019;361(8):1792-1797.
doi:10.1002/adsc.201900061 .
Džambaski, Zdravko, Tzaras, Dimitrios‐Ioannis, Lee, Sunggi, Kokotos, Christoforos G., Bondžić, Bojan, "Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction" in Advanced Synthesis & Catalysis, 361, no. 8 (2019):1792-1797,
https://doi.org/10.1002/adsc.201900061 . .
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Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction

Džambaski, Zdravko; Tzaras, Dimitrios‐Ioannis; Lee, Sunggi; Kokotos, Christoforos G.; Bondžić, Bojan

(Wiley, 2019)

TY  - JOUR
AU  - Džambaski, Zdravko
AU  - Tzaras, Dimitrios‐Ioannis
AU  - Lee, Sunggi
AU  - Kokotos, Christoforos G.
AU  - Bondžić, Bojan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2954
AB  - α,β‐unsaturated aldehydes have been traditionally used in LUMO lowering asymmetric aminocatalysis (iminium catalysis), while the use of saturated aldehydes as substrates in this type of catalysis has been elusive, until recently. Herein, we demonstrate that organic, single‐electron oxidants in the presence of diarylprolinol silylether type catalysts serve as effective tools for the transformation of electron rich enamines to iminium ions which partake in a subsequent Diels‐Alder reaction. This enantioselective one‐pot transformation represents the first example of saturated aldehydes being used in domino Diels‐Alder reaction processes and demonstrates the power of this protocol for construction of stereo‐defined chiral compounds and building blocks.
PB  - Wiley
T2  - Advanced Synthesis & Catalysis
T1  - Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction
VL  - 361
IS  - 8
SP  - 1792
EP  - 1797
DO  - 10.1002/adsc.201900061
ER  - 
@article{
author = "Džambaski, Zdravko and Tzaras, Dimitrios‐Ioannis and Lee, Sunggi and Kokotos, Christoforos G. and Bondžić, Bojan",
year = "2019",
abstract = "α,β‐unsaturated aldehydes have been traditionally used in LUMO lowering asymmetric aminocatalysis (iminium catalysis), while the use of saturated aldehydes as substrates in this type of catalysis has been elusive, until recently. Herein, we demonstrate that organic, single‐electron oxidants in the presence of diarylprolinol silylether type catalysts serve as effective tools for the transformation of electron rich enamines to iminium ions which partake in a subsequent Diels‐Alder reaction. This enantioselective one‐pot transformation represents the first example of saturated aldehydes being used in domino Diels‐Alder reaction processes and demonstrates the power of this protocol for construction of stereo‐defined chiral compounds and building blocks.",
publisher = "Wiley",
journal = "Advanced Synthesis & Catalysis",
title = "Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction",
volume = "361",
number = "8",
pages = "1792-1797",
doi = "10.1002/adsc.201900061"
}
Džambaski, Z., Tzaras, D., Lee, S., Kokotos, C. G.,& Bondžić, B.. (2019). Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. in Advanced Synthesis & Catalysis
Wiley., 361(8), 1792-1797.
https://doi.org/10.1002/adsc.201900061
Džambaski Z, Tzaras D, Lee S, Kokotos CG, Bondžić B. Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. in Advanced Synthesis & Catalysis. 2019;361(8):1792-1797.
doi:10.1002/adsc.201900061 .
Džambaski, Zdravko, Tzaras, Dimitrios‐Ioannis, Lee, Sunggi, Kokotos, Christoforos G., Bondžić, Bojan, "Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction" in Advanced Synthesis & Catalysis, 361, no. 8 (2019):1792-1797,
https://doi.org/10.1002/adsc.201900061 . .
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