Regioselective halogen–magnesium exchange reaction of a bithiophene derivative bearing methoxy and pyridine groups at the β-position and Kumada coupling polymerization

2017 ◽  
Vol 49 (9) ◽  
pp. 649-654
Author(s):  
Koji Takagi ◽  
Ryo Kouchi ◽  
Junpei Kawai
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange ◽  
Coupling Polymerization

Preparation of Functionalized Diorganomagnesium Reagents in Toluene via Bromine or Iodine/Magnesium-Exchange Reactions

Synthesis ◽  
2021 ◽  
Author(s):  
Alexandre Desaintjean ◽  
Fanny Danton ◽  
Paul Knochel
Keyword(s):  
Exchange Reaction ◽  
Nitro Group ◽  
General Formula ◽  
Functional Groups ◽  
Exchange Reactions ◽  
Acyl Chlorides ◽  
Aryl Iodides ◽  
Highly Sensitive ◽  
Wide Range ◽  
Magnesium Exchange

A wide range of polyfunctionalized di(hetero)aryl- and dialkenyl-magnesium reagents were prepared in toluene within 10 to 120 min between −78 °C and 25 °C via an I/Mg- or Br/Mg-exchange reaction using reagents of the general formula R2Mg (R = sBu, Mes). Highly sensitive functional groups, such as a triazene or a nitro group, were tolerated in these exchange reactions, enabling the synthesis of various functionalized (hetero)arenes and alkenes derivatives after quenching with several electrophiles including allyl bromides, acyl chlorides, aldehydes, ketones, and aryl iodides.

Direct preparation of polyfunctional amino-substituted arylmagnesium reagents via an iodine–magnesium exchange reaction

2003 ◽  
pp. 396-397 ◽  
Author(s):  
Greta Varchi ◽  
Christiane Kofink ◽  
David M. Lindsay ◽  
Alfredo Ricci ◽  
Paul Knochel
Keyword(s):  
Exchange Reaction ◽  
Direct Preparation ◽  
Magnesium Exchange

Tributylmagnesium ate complex-mediated novel bromine–magnesium exchange reaction for selective monosubstitution of dibromoarenes

2001 ◽  
Vol 42 (29) ◽  
pp. 4841-4844 ◽  
Author(s):  
Takehiko Iida ◽  
Toshihiro Wada ◽  
Koji Tomimoto ◽  
Toshiaki Mase
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange

ChemInform Abstract: Selective Halogen-Magnesium Exchange Reaction via Organomagnesium Ate Complex.

ChemInform ◽  
2010 ◽  
Vol 32 (41) ◽  
pp. no-no
Author(s):  
Atsushi Inoue ◽  
Kazuya Kitagawa ◽  
Hiroshi Shinokubo ◽  
Koichiro Oshima
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange

New Stereoselective Preparation of (Z)-3-Perfluoroalkyl-3-magnesiated Enoates by an Iodine−Magnesium Exchange Reaction

2004 ◽  
Vol 69 (12) ◽  
pp. 4262-4264 ◽  
Author(s):  
Jérôme Thibonnet ◽  
Alain Duchêne ◽  
Jean-Luc Parrain ◽  
Mohamed Abarbri
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange

Generation of cycloheptynes and cyclooctynes via a sulfoxide–magnesium exchange reaction of readily synthesized 2-sulfinylcycloalkenyl triflates

2015 ◽  
Vol 51 (42) ◽  
pp. 8745-8748 ◽  
Author(s):  
Suguru Yoshida ◽  
Fumika Karaki ◽  
Keisuke Uchida ◽  
Takamitsu Hosoya
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange

Cycloheptynes and cyclooctynes have been efficiently generated via a sulfoxide–magnesium exchange reaction of readily synthesized 2-sulfinylcycloalkenyl triflates.

ChemInform Abstract: Stereoselective Preparation of Functionalized Alkenylmagnesium Reagents via a Iodine-Magnesium Exchange Reaction.

ChemInform ◽  
2010 ◽  
Vol 30 (29) ◽  
pp. no-no
Author(s):  
Mario Rottlaender ◽  
Laure Boymond ◽  
Gerard Cahiez ◽  
Paul Knochel
Keyword(s):  
Exchange Reaction ◽  
Magnesium Exchange
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