Regioselective C-2 or C-5 Direct Arylation of Pyrroles with Aryl Bromides using a Ligand-Free Palladium Catalyst

2009 ◽  
Vol 351 (11-12) ◽  
pp. 1977-1990 ◽  
Author(s):  
Julien Roger ◽  
Henri Doucet
Keyword(s):  
Palladium Catalyst ◽  
Direct Arylation ◽  
Aryl Bromides ◽  
Ligand Free

Direct Arylation of Porphyrins with π-Extended Aryl Bromides under Ligand-free Fagnou-Hartwig Conditions

2013 ◽  
Vol 2 (4) ◽  
pp. 320-324 ◽  
Author(s):  
Yutaro Yamamoto ◽  
Sumito Tokuji ◽  
Takayuki Tanaka ◽  
Hideki Yorimitsu ◽  
Atsuhiro Osuka
Keyword(s):  
Direct Arylation ◽  
Aryl Bromides ◽  
Ligand Free

scholarly journals Cover Picture: Direct Arylation of Porphyrins with π-Extended Aryl Bromides under Ligand-free Fagnou-Hartwig Conditions (Asian J. Org. Chem. 4/2013)

2013 ◽  
Vol 2 (4) ◽  
pp. 261-261
Author(s):  
Yutaro Yamamoto ◽  
Sumito Tokuji ◽  
Takayuki Tanaka ◽  
Hideki Yorimitsu ◽  
Atsuhiro Osuka
Keyword(s):  
Direct Arylation ◽  
Aryl Bromides ◽  
Ligand Free

scholarly journals Hindered aryl bromides for regioselective palladium-catalysed direct arylation at less favourable C5-carbon of 3-substituted thiophenes

2014 ◽  
Vol 10 ◽  
pp. 1239-1245 ◽  
Author(s):  
Rongwei Jin ◽  
Charles Beromeo Bheeter ◽  
Henri Doucet
Keyword(s):  
Palladium Catalyst ◽  
Thiophene Ring ◽  
Aryl Bromide ◽  
Direct Arylation ◽  
Bond Functionalization ◽  
Aryl Bromides ◽  
Thiophene Derivatives ◽  
Coupling Partner

The use of the congested aryl bromide 2-bromo-1,3-dichlorobenzene as coupling partner allows to modify the regioselectivity of the arylation of 3-substituted thiophene derivatives in favour of carbon C5. The coupling of this aryl bromide with a variety of 3-substituted thiophenes gave in all cases the desired 5-arylation products in moderate to good yields using only 0.5 mol % of a phosphine-free and air-stable palladium catalyst. Then, from these 5-arylthiophenes, a second palladium-catalysed C–H bond functionalization at C2 of the thiophene ring allows the synthesis of 2,5-diarylthiophenes with two different aryl units.

Direct Arylation of Heteroaromatic Compounds with Congested, Functionalised Aryl Bromides at Low Palladium/Triphosphane Catalyst Loading

2011 ◽  
Vol 17 (23) ◽  
pp. 6453-6461 ◽  
Author(s):  
David Roy ◽  
Sophal Mom ◽  
Dominique Lucas ◽  
Hélène Cattey ◽  
Jean‐Cyrille Hierso ◽  
...  
Keyword(s):  
Catalyst Loading ◽  
Direct Arylation ◽  
Heteroaromatic Compounds ◽  
Aryl Bromides

Synthesis of conjugated polymers using aryl-bromides via Cu-catalyzed direct arylation polymerization (Cu-DArP)

2019 ◽  
Vol 10 (48) ◽  
pp. 6545-6550 ◽  
Author(s):  
Liwei Ye ◽  
Robert M. Pankow ◽  
Alexander Schmitt ◽  
Barry C. Thompson
Keyword(s):  
Conjugated Polymers ◽  
Copper Catalysts ◽  
Aryl Bromide ◽  
Direct Arylation ◽  
First Report ◽  
Aryl Bromides ◽  
Direct Arylation Polymerization

The first report on direct arylation polymerization with copper catalysts and aryl-bromide monomers expands the sustainability and practicality of DArP.

ChemInform Abstract: Carbon-Carbon Bond Formation by Ligand-Free Cross-Coupling Reaction Using Palladium Catalyst Supported on Synthetic Adsorbent.

ChemInform ◽  
2012 ◽  
Vol 43 (33) ◽  
pp. no-no
Author(s):  
Yasunari Monguchi ◽  
Keita Sakai ◽  
Koichi Endo ◽  
Yuki Fujita ◽  
Masaru Niimura ◽  
...  
Keyword(s):  
Palladium Catalyst ◽  
Bond Formation ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Carbon Bond ◽  
Carbon Carbon Bond ◽  
Cross Coupling Reaction ◽  
Ligand Free
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