ChemInform Abstract: One-Pot Synthesis of Dibenzofurans via SNAr and Subsequent Ligand-Free Palladium-Catalyzed Intramolecular Aryl-Aryl Cross-Coupling Reactions under Microwave Irradiation.

ChemInform ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. no-no
Author(s):  
Zhiping Che ◽  
Hui Xu
2011 ◽  
Vol 66 (8) ◽  
pp. 833-836
Author(s):  
Zhiping Che ◽  
Hui Xu

An efficient one-pot synthesis of dibenzofurans, via SNAr reaction of aryl halides and ortho-bromophenols in the presence of anhydrous K2CO3 and subsequent ligand-free palladium-catalyzed intramolecular aryl-aryl cross-coupling cyclization under microwave irradiation, is described.


ChemInform ◽  
2013 ◽  
Vol 44 (52) ◽  
pp. no-no
Author(s):  
Muhammad Farooq Ibad ◽  
Dhafer Saber Zinad ◽  
Munawar Hussain ◽  
Asad Ali ◽  
Alexander Villinger ◽  
...  

Synthesis ◽  
2018 ◽  
Vol 50 (17) ◽  
pp. 3307-3321 ◽  
Author(s):  
Jorge Cabezas ◽  
Rebeca Poveda ◽  
José Brenes

Sequential treatment of 2,3-dichloropropene with magnesium and n-BuLi generates the operational equivalent of 1,3-dilithiopropyne, which upon treatment with aldehydes or ketones, produces the corresponding alkoxy lithium acetylide intermediates. Reaction of this alkoxide with tosyl chloride, and t-BuLi produces 1-substituted, or 1,1-disubstituted 1,3-enynes in a one-pot reaction. When this lithium acetylide intermediates, obtained by this procedure, were used to perform palladium-catalyzed cross-coupling reactions, followed by addition of thionyl chloride and pyridine, 1,4-disubstituted or 1,1,4-trisubstituted 1,3-enynes were obtained in a one-pot protocol.


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