Palladium-catalyzed C–P cross-coupling of allenic alcohols with H-phosphonates leading to 2-phosphinoyl-1,3-butadienes

2021 ◽  
Author(s):  
Shanshan Hu ◽  
Wenyu Sun ◽  
Junhong Chen ◽  
Sipei Li ◽  
Runmin Zhao ◽  
...  

The first regioselective palladium-catalyzed C–P cross-coupling of unprotected allenic alcohols with H-phosphonates for the one-pot synthesis of structurally diverse multisubstituted 2-phosphinoyl-1,3-butadienes was developed.

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.


Synthesis ◽  
2017 ◽  
Vol 49 (23) ◽  
pp. 5149-5158
Author(s):  
Alavala Krishna Reddy ◽  
Gedu Satyanarayana

Palladium-catalyzed copper-free Sonogashira coupling of 2-bromocarbonyls is presented. This method afforded the 2-alkynylaryl carbonyls, useful synthons for the accomplishment of many carbocyclic and heterocyclic motifs. Significantly, the strategy was extended to the one-pot synthesis of isobenzofurans via reduction followed by intramolecular 5-exo-dig cyclization.


ChemInform ◽  
2012 ◽  
Vol 43 (9) ◽  
pp. no-no
Author(s):  
Masafumi Ueda ◽  
Shoichi Sugita ◽  
Naoki Aoi ◽  
Aoi Sato ◽  
Yuki Ikeda ◽  
...  

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