Suzuki reaction of bromoallenes with arylboronic acids using an air-stable palladium complex Pd(Ph2PCH2CO2)2 as a precatalyst

2010 ◽  
Vol 21 (6) ◽  
pp. 641-645 ◽  
Author(s):  
Xin Du ◽  
Xiu Juan Feng ◽  
Ying Liu ◽  
Ren He ◽  
Ming Bao
Keyword(s):  
Palladium Complex ◽  
Suzuki Reaction ◽  
Arylboronic Acids

Comparison of the Suzuki cross-coupling reactions of 4,7-dichloroquinoline and 7-chloro-4-iodoquinoline with arylboronic acids using phosphine-free palladium catalysis in water

2004 ◽  
Vol 82 (2) ◽  
pp. 206-214 ◽  
Author(s):  
Richard W Friesen ◽  
Laird A Trimble
Keyword(s):  
Phenylboronic Acid ◽  
Palladium Catalysis ◽  
Suzuki Reaction ◽  
Tetrabutylammonium Bromide ◽  
Cross Coupling ◽  
Palladium Acetate ◽  
Coupling Reactions ◽  
Reaction Conditions ◽  
Arylboronic Acids ◽  
Cross Coupling Reactions

4,7-Dichloroquinoline (1a) and 7-chloro-4-iodoquinoline (1b) undergo Suzuki cross-coupling reactions with arylboronic acids catalyzed by phosphine-free palladium acetate in boiling water. Using phenylboronic acid (2), the reaction of 1a provides 7-chloro-4-phenylquinoline (3) (78%) together with diphenylquinoline (4) (12%), while 1b reacts in a much more regioselective fashion and provides 3 in 98% isolated yield. Although 1b undergoes a more regioselective Suzuki reaction than 1a, additional important observations are that the overall reaction of 1b with 2 is three times slower than 1a and that the reaction occurs in the absence of tetrabutylammonium bromide. Using optimized reaction conditions, a variety of aryl and vinylboronic acids undergo regioselective Suzuki cross-coupling with 1b to provide the products 7, 10, and 11 in good to excellent yield.Key words: palladium, cross-coupling, regioselectivity, quinolines, boronic acids.

scholarly journals Studies on Pd/NiFe2O4 catalyzed ligand-free Suzuki reaction in aqueous phase: synthesis of biaryls, terphenyls and polyaryls

2011 ◽  
Vol 7 ◽  
pp. 310-319 ◽  
Author(s):  
Sanjay R Borhade ◽  
Suresh Babsaheb Waghmode
Keyword(s):  
Active Catalyst ◽  
Suzuki Reaction ◽  
Reaction Times ◽  
Coupling Reaction ◽  
Solvent Mixture ◽  
Phase Synthesis ◽  
Suzuki Coupling Reaction ◽  
Arylboronic Acids ◽  
Highly Active ◽  
Ligand Free

Palladium supported on nickel ferrite (Pd/NiF2O4) was found to be a highly active catalyst for the Suzuki coupling reaction between various aryl halides and arylboronic acids. The reaction gave excellent yields (70–98%) under ligand free conditions in a 1:1 DMF/H2O solvent mixture, in short reaction times (10–60 min). The catalyst could be recovered easily by applying an external magnetic field. The polyaryls were similarly synthesized.

meso-Tetrakis[4-(methoxycarbonyl)phenyl]porphyrinatopalladium(ii) supported on graphene oxide nanosheets (Pd(ii)-TMCPP-GO): synthesis and catalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108755-108767 ◽  
Author(s):  
Reza Fareghi-Alamdari ◽  
Mohsen Golestanzadeh ◽  
Omid Bagheri
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Palladium Complex ◽  
Suzuki Reaction ◽  
Graphene Oxide Nanosheets

In this study, meso-tetrakis[4-(methoxycarbonyl)phenyl]porphynatopalladium(ii) as a macrocyclic palladium complex was covalently grafted to the surface of graphene oxide (Pd-TMCPP-GO). The prepared catalyst was checked in Suzuki reaction.

Pd-catalyzed ligand-free Suzuki reaction of β-substituted allylic halides with arylboronic acids in water

RSC Advances ◽  
2014 ◽  
Vol 4 (22) ◽  
pp. 11152-11158 ◽  
Author(s):  
Chaonan Dong ◽  
Lingjuan Zhang ◽  
Xiao Xue ◽  
Huanrong Li ◽  
Zhiyong Yu ◽  
...  
Keyword(s):  
Suzuki Reaction ◽  
Arylboronic Acids ◽  
Ligand Free ◽  
Allylic Halides

The combination of Pd(TFA)2 and KOH could efficiently catalyze the reaction of β-substituted allylic halides with arylboronic acids in water.

Suzuki reaction over palladium-complex loaded MCM-41 catalysts

2001 ◽  
Vol 44-45 ◽  
pp. 537-545 ◽  
Author(s):  
H Kosslick ◽  
I Mönnich ◽  
E Paetzold ◽  
H Fuhrmann ◽  
R Fricke ◽  
...  
Keyword(s):  
Palladium Complex ◽  
Suzuki Reaction ◽  
Mcm 41
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