Palladium-Catalyzed Three-Component Coupling Reaction of Benzyl Chlorides, Allyltributylstannane, and Carbon Monoxide: Efficient Synthesis of α,β-Unsaturated Ketones

2013 ◽  
Vol 33 (3) ◽  
pp. 523-529
Author(s):  
Xin ZHANG ◽  
Xiujuan FENG ◽  
Hesong LIU ◽  
Yuhu QIN ◽  
Yao DAI
Keyword(s):  
Carbon Monoxide ◽  
Coupling Reaction ◽  
Efficient Synthesis ◽  
Unsaturated Ketones ◽  
Benzyl Chlorides ◽  
Palladium Catalyzed ◽  
Three Component Coupling

scholarly journals PEG-embedded KBr3: A recyclable catalyst for multicomponent coupling reaction for the efficient synthesis of functionalized piperidines

2011 ◽  
Vol 7 ◽  
pp. 1334-1341 ◽  
Author(s):  
Sanny Verma ◽  
Suman L Jain ◽  
Bir Sain
Keyword(s):  
Coupling Reaction ◽  
Recyclable Catalyst ◽  
Efficient Synthesis ◽  
Molecular Bromine ◽  
Keto Ester ◽  
One Step ◽  
High Yields ◽  
Multicomponent Coupling ◽  
Three Component Coupling

PEG-embedded potassium tribromide ([K+PEG]Br3 −) was found to be an efficient and recyclable catalyst for the synthesis of functionalized piperidines in high yields in a one step, three component coupling between aldehyde, amine and β-keto ester. At the end of the reaction the [K+PEG]Br3 − was readily regenerated from the reaction mixture by treating the residue containing [K+PEG]Br− with molecular bromine.

Efficient synthesis of tetrasubstituted 2,3-allenoates and preliminary studies on bioactivities

2019 ◽  
Vol 6 (3) ◽  
pp. 304-308 ◽  
Author(s):  
Yuan Yao ◽  
Guirong Zhu ◽  
Qin Chen ◽  
Hui Qian ◽  
Shengming Ma
Keyword(s):  
Coupling Reaction ◽  
Boronic Acids ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Palladium Catalyzed

A general and highly efficient straightforward protocol for the preparation of tetrasubstituted 2,3-allenoates through a palladium-catalyzed coupling reaction of 3-alkoxycarbonyl propargylic carbonates and boronic acids with commercially available tri(o-tolyl)phosphine as a ligand has been developed.

Brønsted acid cocatalysis in photocatalytic intramolecular coupling of tertiary amines: efficient synthesis of 2-arylindols

2016 ◽  
Vol 14 (31) ◽  
pp. 7447-7450 ◽  
Author(s):  
Xiaoqian Yuan ◽  
Xinxin Wu ◽  
Shupeng Dong ◽  
Guibing Wu ◽  
Jinxing Ye
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Bronsted Acid ◽  
Tertiary Amines ◽  
Brønsted Acid ◽  
Efficient Synthesis ◽  
Unsaturated Ketones ◽  
Brönsted Acid

We report herein a highly efficient intramolecular coupling reaction of tertiary amines and ketones (α,β-unsaturated ketones) by using a Brønsted acid as a cocatalyst, affording 2-arylindols in good to excellent yields (up to 92%) under visible light irradiation at room temperature.

Facile Synthesis of (-)-Ascochlorin Using Palladium-Catalyzed Three Component Coupling Reaction.

ChemInform ◽  
2007 ◽  
Vol 38 (41) ◽  
Author(s):  
Makoto Aoki ◽  
Kenji Kawashima ◽  
Hirohisa Fujihara ◽  
Isao Shimizu
Keyword(s):  
Coupling Reaction ◽  
Facile Synthesis ◽  
Palladium Catalyzed ◽  
Three Component Coupling
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