ChemInform Abstract: Cross-Coupling of 1-Aryl-5-bromopyrazoles: Regioselective Synthesis of 3,5-Disubstituted 1-Arylpyrazoles.

ChemInform ◽  
2010 ◽  
Vol 31 (35) ◽  
pp. no-no
Author(s):  
Xiao-jun Wang ◽  
Jonathan Tan ◽  
Karl Grozinger
Keyword(s):  
Cross Coupling ◽  
Regioselective Synthesis

Directed Metalation–Suzuki–Miyaura Cross-Coupling Strategies: Regioselective Synthesis of Hydroxylated 1-Methyl-phenanthrenes

2015 ◽  
Vol 80 (19) ◽  
pp. 9410-9424 ◽  
Author(s):  
Kåre B. Jørgensen ◽  
Toni Rantanen ◽  
Thilo Dörfler ◽  
Victor Snieckus
Keyword(s):  
Cross Coupling ◽  
Regioselective Synthesis ◽  
Coupling Strategies

Palladium-catalyzed regioselective synthesis of B(4,5)- or B(4)-substituted o-carboranes containing α,β-unsaturated carbonyls

2020 ◽  
Vol 18 (25) ◽  
pp. 4723-4727 ◽  
Author(s):  
Chuyi Zhang ◽  
Qian Wang ◽  
Song Tian ◽  
Jianwei Zhang ◽  
Jiaoyi Li ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Regioselective Synthesis ◽  
Cross Coupling Reaction ◽  
Unsaturated Carbonyls ◽  
Palladium Catalyzed

B(4,5)- or B(4)-Substituted o-carboranes containing α,β-unsaturated carbonyls are regioselectively synthesized through a Pd-catalyzed decarboxylation cross coupling reaction.

Cross-coupling of 1-aryl-5-bromopyrazoles: regioselective synthesis of 3,5-disubstituted 1-arylpyrazoles

2000 ◽  
Vol 41 (24) ◽  
pp. 4713-4716 ◽  
Author(s):  
Xiao-jun Wang ◽  
Jonathan Tan ◽  
Karl Grozinger
Keyword(s):  
Cross Coupling ◽  
Regioselective Synthesis

scholarly journals Regioselective Synthesis of New 2,4-(Het)aryl-3H-pyrido[1′,2′:1,5]pyrazolo[4,3-d]pyrimidines Involving Palladium-Catalyzed Cross-Coupling Reactions

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2740 ◽  
Author(s):  
Abdelaziz Ejjoummany ◽  
Rabia Belaroussi ◽  
Ahmed El Hakmaoui ◽  
Mohamed Akssira ◽  
Gérald Guillaumet ◽  
...  
Keyword(s):  
Process Optimization ◽  
Cross Coupling ◽  
Regioselective Synthesis ◽  
Coupling Reactions ◽  
Pyrimidine Derivatives ◽  
Release Process ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed ◽  
High Yields

The design of some novel di-(het)arylated-3H-pyrido[1′,2′:1,5]pyrazolo[4,3-d]pyrimidine derivatives is reported. The series was developed from 1-aminopyridinium iodide, which afforded the key intermediate bearing two thiomethyl and amide functions, each of them useful for palladium catalyzed cross coupling reactions by alkyl sulfur release and C-O activation, respectively. The two regioselective and successive cross-coupling reactions were first carried out in C-4 by in situ C-O activation and next in C-2 by a methylsulfur release. Process optimization furnished conditions leading to products in high yields. The scope and limitations of the methodologies were evaluated and the final compounds characterized.

Iron-Catalysed Regioselective Arylsulfonylation of Quinoline N-Oxides with Sodium Arylsulfinates under Microwave Irradiation

2017 ◽  
Vol 41 (12) ◽  
pp. 705-708 ◽  
Author(s):  
Wenpeng Mai ◽  
Mingxiu Lv ◽  
Xiaofeng Zhang ◽  
Kui Lu
Keyword(s):  
Microwave Irradiation ◽  
Functional Group ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Regioselective Synthesis ◽  
One Pot ◽  
Cross Coupling Reaction

An efficient protocol for one-pot deoxygenative and regioselective synthesis of 2-arylsulfonylquinolines has been developed via iron-catalysed cross-coupling reaction of quinoline N-oxides with sodium arylsulfinates in moderate to good yields under microwave irradiation. The reactions proceeded over a broad range of substrates with good regioselectivity and functional group tolerance.

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