Microwave-assisted suzuki coupling reaction for rapid synthesis of conjugated polymer-poly(9,9-dihexylfluorene)s as an example

2013 ◽  
Vol 51 (9) ◽  
pp. 1950-1955 ◽  
Author(s):  
Wensi Zhang ◽  
Ping Lu ◽  
Zhiming Wang ◽  
Yuguang Ma
2018 ◽  
Vol 9 (48) ◽  
pp. 5671-5679 ◽  
Author(s):  
Choongho Kim ◽  
Young Jin Gwon ◽  
Jongho Kim ◽  
Taek Seung Lee

Fluorescent conjugated polymers (CPs) for blue, green, and red emission were polymerized via the Suzuki coupling reaction.


2004 ◽  
Vol 6 (9) ◽  
pp. 1473-1476 ◽  
Author(s):  
Wei Zhang ◽  
Christine Hiu-Tung Chen ◽  
Yimin Lu ◽  
Tadamichi Nagashima

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 439
Author(s):  
Ana Dolšak ◽  
Kristjan Mrgole ◽  
Matej Sova

Suzuki coupling reaction has been often used for the preparation of a diverse set of substituted pyrimidines. In this study, the Suzuki coupling of 2,4-dichloropyrimidines with aryl and heteroaryl boronic acids was investigated. A thorough screening of reaction conditions and the use of microwave irradiation led to a very efficient and straightforward synthetic procedure providing C4-substituted pyrimidines in good to excellent yields. Short reaction time (15 min) and extremely low catalyst loading (0.5 mol%) are the main advantages of our tetrakis(triphenylphosphine)palladium(0) catalyzed microwave-assisted procedure, which could be used for quick and low-cost regioselective preparation of substituted pyrimidine rings.


Author(s):  
Hirokazu Seto ◽  
Takumi Tono ◽  
Akiko Nagaoka ◽  
Mai Yamamoto ◽  
Yumiko Hirohashi ◽  
...  

Poly(vinylbiphenyl)s bearing glycoside ligands at the side chains were prepared using the Suzuku coupling reaction. Effects of glycoside reactant concentration, halide species, glycoside species, and catalyst species on the incorporation...


ChemInform ◽  
2008 ◽  
Vol 39 (15) ◽  
Author(s):  
Elisa Perissutti ◽  
Francesco Frecentese ◽  
Antonio Lavecchia ◽  
Ferdinando Fiorino ◽  
Beatrice Severino ◽  
...  

ChemInform ◽  
2005 ◽  
Vol 36 (38) ◽  
Author(s):  
Jun-xiao Yang ◽  
Kuo-yan Ma ◽  
Fang-hua Zhu ◽  
Wen Chen ◽  
Bo Li ◽  
...  

2003 ◽  
Vol 787 ◽  
Author(s):  
John D. Bass ◽  
Sandra L. Anderson ◽  
Alexander Katz

AbstractThe effect of chemical environment surrounding a synthetic heterogeneous catalyst active site is investigated using the hydrophilic imprinting of silica. Two model reaction systems have been used for this study: (i) Knoevenagel condensation of 3-nitrobenzaldehyde and malononitrile and (ii) Suzuki coupling of bromobenzene and phenylboronic acid. Using a catalyst in which isolated imprinted amines are surrounded by an acidic silanol-rich environment led to rate accelerations of over 120-fold relative to catalysts in which the amines are surrounded by a hydrophobic environment consisting of trimethylsilyl functional groups for system (i). This result parallels our previous study on the effect of the outer sphere composition on rate acceleration of Knoevenagel reactions using isophthalaldehyde as the aldehyde reactant. We also extended our method for the hydrophilic imprinting of bulk silica to organometallic systems, by successfully synthesizing a tethered palladium complex within the imprinted pocket. This material was used as an active catalyst for (ii). Our results show that a hydrophobic framework environment results in higher initial turnover frequencies than an acidic silanol-rich framework for the Suzuki coupling reaction of bromobenzene and phenylboronic acid, albeit with a lower overall effect than observed in the Knoevenagel system (i). Altogether, these results demonstrate the control of chemical reactivity via the rational design of the outer sphere using an imprinting approach.


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