Open Access
Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity
Publication type: Journal Article
Publication date: 2018-04-02
Catalysis
Physical and Theoretical Chemistry
Abstract
Two types of immobilized on the amino-functionalized polystyrene-supported acyclic diaminocarbene palladium complexes (ADC-PdII) are investigated under Sonogashira cross-coupling conditions. Depending on substituents in the diaminocarbene fragment immobilized ADC-PdII, systems are found to have different catalytic activity and stability regarding Pd-leaching. PdII-diaminocarbenes possessing protons at both nitrogen atoms smoothly decompose into Pd0-containing species providing a catalytic “cocktail system” with high activity and ability to reuse within nine runs. Polymer-supported palladium (II) complex bearing NBn–Ccarbene–NH-moiety exhibits greater stability while noticeably lower activity under Sonogashira cross-coupling. Four molecular ADC-PdII complexes are also synthesized and investigated with the aim of confirming proposed base-promoted pathway of ADC-PdII conversion through carbodiimide into an active Pd0 forms.
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45
Total citations:
45
Citations from 2024:
9
(20%)
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GOST
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Mikhaylov V. N. et al. Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity // Catalysts. 2018. Vol. 8. No. 4. p. 141.
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Mikhaylov V. N., Sorokoumov V. N., Liakhov D., Tskhovrebov A., Balova I. A. Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity // Catalysts. 2018. Vol. 8. No. 4. p. 141.
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RIS
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TY - JOUR
DO - 10.3390/catal8040141
UR - https://doi.org/10.3390/catal8040141
TI - Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity
T2 - Catalysts
AU - Mikhaylov, V N
AU - Sorokoumov, V. N.
AU - Liakhov, Denis
AU - Tskhovrebov, Alexander
AU - Balova, Irina A.
PY - 2018
DA - 2018/04/02
PB - MDPI
SP - 141
IS - 4
VL - 8
SN - 2073-4344
ER -
Cite this
BibTex (up to 50 authors)
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@article{2018_Mikhaylov,
author = {V N Mikhaylov and V. N. Sorokoumov and Denis Liakhov and Alexander Tskhovrebov and Irina A. Balova},
title = {Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity},
journal = {Catalysts},
year = {2018},
volume = {8},
publisher = {MDPI},
month = {apr},
url = {https://doi.org/10.3390/catal8040141},
number = {4},
pages = {141},
doi = {10.3390/catal8040141}
}
Cite this
MLA
Copy
Mikhaylov, V. N., et al. “Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity.” Catalysts, vol. 8, no. 4, Apr. 2018, p. 141. https://doi.org/10.3390/catal8040141.