Copper-Free Palladium-Catalyzed Sonogashira Coupling−Annulation: Efficient One-Pot Synthesis of Functionalized Pyrano[4,3-b]quinolines from 2-Chloro-3-formylquinolines

2009 ◽  
Vol 74 (15) ◽  
pp. 5664-5666 ◽  
Author(s):  
Atish Chandra ◽  
Bhawana Singh ◽  
Ranjana S. Khanna ◽  
Radhey M. Singh
Keyword(s):  
Sonogashira Coupling ◽  
One Pot ◽  
One Pot Synthesis ◽  
Palladium Catalyzed

Palladium-Catalyzed Copper-Free Sonogashira Coupling of 2-Bromoarylcarbonyls: Synthesis of Isobenzofurans via One-Pot Reductive Cyclization

Synthesis ◽  
2017 ◽  
Vol 49 (23) ◽  
pp. 5149-5158
Author(s):  
Alavala Krishna Reddy ◽  
Gedu Satyanarayana
Keyword(s):  
Reductive Cyclization ◽  
Sonogashira Coupling ◽  
One Pot ◽  
One Pot Synthesis ◽  
Palladium Catalyzed ◽  
The One

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.

Copper and palladium-catalyzed sequential reactions: one-pot synthesis of isoindolo[2,1-b]isoquinolin-7(5H)-ones

2019 ◽  
Vol 17 (17) ◽  
pp. 4281-4290 ◽  
Author(s):  
Hitesh Kumar Saini ◽  
Shiv Dhiman ◽  
Nitesh Kumar Nandwana ◽  
Rangan Krishnan ◽  
Anil Kumar
Keyword(s):  
Heck Reaction ◽  
Sonogashira Coupling ◽  
One Pot ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Ligand Free ◽  
Palladium Catalyzed ◽  
Sequential Reactions

A highly efficient protocol has been developed for the synthesis of diversely substituted isoindolo[2,1-b]isoquinolin-7(5H)-ones through sequential Cu(ii)-catalyzed Sonogashira coupling, intramolecular hydroamidation followed by palladium-catalyzed ligand free Heck reaction.

One-Pot Synthesis of Naphtho[1′,2′:4,5]imidazo[1,2-a ]pyridin-5-yl(aryl)methanones through Sequential Sonogashira Coupling/Alkyne-Carbonyl Metathesis

2017 ◽  
Vol 2017 (27) ◽  
pp. 4026-4034 ◽  
Author(s):  
Mirza Feroz Baig ◽  
Siddiq Pasha Shaik ◽  
Namballa Hari Krishna ◽  
Neeraj Kumar Chouhan ◽  
Abdullah Alarifi ◽  
...  
Keyword(s):  
Sonogashira Coupling ◽  
One Pot ◽  
One Pot Synthesis
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