Heck coupling reaction using monomeric ortho-palladated complex of 4-methoxy- benzoylmethylenetriphenylphosphorane under microwave irradiation

2010 ◽  
Vol 24 (11) ◽  
pp. 798-804 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Kazem Karami ◽  
Ghazal Tavakoli
Keyword(s):  
Microwave Irradiation ◽  
Coupling Reaction ◽  
Heck Coupling

scholarly journals An effective Pd nanocatalyst in aqueous media: stilbene synthesis by Mizoroki–Heck coupling reaction under microwave irradiation

2017 ◽  
Vol 13 ◽  
pp. 1717-1727 ◽  
Author(s):  
Carolina S García ◽  
Paula M Uberman ◽  
Sandra E Martín
Keyword(s):  
Microwave Irradiation ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Catalyst Loading ◽  
Coupling Reactions ◽  
Heck Coupling ◽  
Turnover Frequency ◽  
High Turnover ◽  
Aryl Bromides ◽  
Simple Product

Aqueous Mizoroki–Heck coupling reactions under microwave irradiation (MW) were carried out with a colloidal Pd nanocatalyst stabilized with poly(N-vinylpyrrolidone) (PVP). Many stilbenes and novel heterostilbenes were achieved in good to excellent yields starting from aryl bromides and different olefins. The reaction was carried out in a short reaction time and with low catalyst loading, leading to high turnover frequency (TOFs of the order of 100 h−1). The advantages like operational simplicity, high robustness, efficiency and turnover frequency, the utilization of aqueous media and simple product work-up make this protocol a great option for stilbene syntheses by Mizoroki–Heck reaction.

Suzuki-Miyaura cross-coupling reaction in water: facile synthesis of (hetero) aryl uracil bases using potassiumorganotrifluoroborates under microwave irradiation.

2016 ◽  
Vol 1 (15) ◽  
pp. 4721-4725 ◽  
Author(s):  
Bhaskaran Savitha ◽  
Ayyiliath M. Sajith ◽  
Eeda Koti Reddy ◽  
C. S. Ananda Kumar ◽  
M. Syed Ali Padusha
Keyword(s):  
Microwave Irradiation ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Facile Synthesis ◽  
Cross Coupling Reaction ◽  
Reaction In Water

Copper-catalysed cross coupling reaction under microwave irradiation conditions

2000 ◽  
Vol 2000 (11) ◽  
pp. 536-537 ◽  
Author(s):  
Jin-Xian Wang ◽  
Zhanxiang Liu Yulai Hu ◽  
Bangguo Wei
Keyword(s):  
Microwave Irradiation ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction

Synthesis and Characterization of Novel PEPPSI type Pd–BICAAC Complexes

2022 ◽  
Author(s):  
Márton Nagyházi ◽  
Balázs Almási ◽  
Ádám Lukács ◽  
Attila Bényei ◽  
Tibor Nagy ◽  
...  
Keyword(s):  
High Activity ◽  
Coupling Reaction ◽  
Kinetic Studies ◽  
Elemental Mercury ◽  
Palladium Complexes ◽  
Synthesis And Characterization ◽  
Heck Coupling ◽  
Moisture Resistant

A series of bicyclic alkylamino carbenes (BICAAC) (where N-aryl = dipp, mes, 2,6-dimethyl-4-(dimethylamino)phenyl, 5a-d) and their novel air- and moisture-resistant pyridine (pyridine, 4 dimethylaminopyridine) containing palladium PEPPSI-type Pd(II) complexes (6a-e) were synthetized and characterized. The new palladium complexes have shown high activity in Mizoroki–Heck coupling reaction even at as low as 100 ppm loading (TON up to 10000). Kinetic studies revealed that reactions carried out in the presence of elemental mercury resulted in decrease in activity. It indicates that the coupling reaction may have both molecular and Pd(0)-mediated catalytic paths.

An expedient approach to enhance Mizoroki-Heck coupling reaction by infrared irradiation using palladacycle compounds

2015 ◽  
Vol 29 (8) ◽  
pp. 556-560 ◽  
Author(s):  
Fernando Ortega-Jiménez ◽  
Francisco X. Domínguez-Villa ◽  
Alfredo Rosas-Sánchez ◽  
Guillermo Penieres-Carrillo ◽  
José G. López-Cortés ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Heck Coupling ◽  
Infrared Irradiation
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