Polymer-supported palladium complexes with C,N-ligands as efficient recoverable catalysts for the Heck reaction

2010 ◽  
Vol 24 (9) ◽  
pp. 646-649 ◽  
Author(s):  
Yu-xia Liu ◽  
Zhi-wei Ma ◽  
Jun Jia ◽  
Chuan-chuan Wang ◽  
Meng-lin Huang ◽  
...  
Keyword(s):  
Heck Reaction ◽  
Palladium Complexes ◽  
Supported Palladium ◽  
Polymer Supported ◽  
Recoverable Catalysts

ChemInform Abstract: Polymer-Supported Palladium Complexes with C,N-Ligands as Efficient Recoverable Catalysts for the Heck Reaction.

ChemInform ◽  
2010 ◽  
Vol 42 (3) ◽  
pp. no-no
Author(s):  
Yu-xia Liu ◽  
Zhi-wei Ma ◽  
Jun Jia ◽  
Chuan-chuan Wang ◽  
Meng-lin Huang ◽  
...  
Keyword(s):  
Heck Reaction ◽  
Palladium Complexes ◽  
Supported Palladium ◽  
Polymer Supported ◽  
Recoverable Catalysts

scholarly journals Polystyrene-Supported Acyclic Diaminocarbene Palladium Complexes in Sonogashira Cross-Coupling: Stability vs. Catalytic Activity

Catalysts ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 141 ◽  
Author(s):  
Vladimir Mikhaylov ◽  
Viktor Sorokoumov ◽  
Denis Liakhov ◽  
Alexander Tskhovrebov ◽  
Irina Balova
Keyword(s):  
Catalytic Activity ◽  
High Activity ◽  
Cross Coupling ◽  
Palladium Complexes ◽  
Lower Activity ◽  
Coupling Conditions ◽  
Acyclic Diaminocarbene ◽  
Supported Palladium ◽  
Polymer Supported

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.

Dicyano-functionalized MCM-41 anchored-palladium complexes as recoverable catalysts for Heck reaction

2004 ◽  
Vol 210 (1-2) ◽  
pp. 143-148 ◽  
Author(s):  
Hengquan Yang ◽  
Gaoyong Zhang ◽  
Xinlin Hong ◽  
Yinyan Zhu
Keyword(s):  
Heck Reaction ◽  
Palladium Complexes ◽  
Recoverable Catalysts ◽  
Mcm 41
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