Suzuki-Coupling of Cp*Ru(para-C6H4Br2) with Phenyl Boronic Acid: A Model Reaction for the Synthesis of Organometallic Polymers

1996 ◽  
Vol 129 (11) ◽  
pp. 1323-1325 ◽  
Author(s):  
Kathrin Harre ◽  
Volker Enkelmann ◽  
Margit Schulze ◽  
Uwe H. F. Bunz
2019 ◽  
Author(s):  
Meifeng Wang ◽  
Gan Zhu ◽  
Yiqun Li ◽  
Liuqun Gu

Arylboronic acids were widely used as efficient catalysts in direct amide formation and other organic transformations. Surprisingly, reports on their use as catalysts in carbohydrates synthesis are very rare even though boron acid-diol complexation was extensively investigated in molecular recognition for saccharides and so on. Here we developed an efficient arylboronic acids catalyzed dimerization of glucosamines forming deoxyfructosazine which is important compound in pharmaceutical and food industries, against a commonly held belief that excess amount of phenyl boronic acid (or boric acid) is a must. A catalytic mechanism was also proposed and arylboronic acids instead of their boronates was identified as catalysts.


2014 ◽  
Vol 58 (2) ◽  
pp. 33-35 ◽  
Author(s):  
Yuichi Aikyo ◽  
Masamichi Oh-Ishi

Soft Matter ◽  
2019 ◽  
Vol 15 (2) ◽  
pp. 159-165 ◽  
Author(s):  
Karthika Suresh ◽  
Marleen Häring ◽  
Guruswamy Kumaraswamy ◽  
David Díaz Díaz

The linear response of alginate-phenyl boronic acid (Alg-PBA) esters shows a universal, composition-independent viscoelastic fluid-like behaviour. However, their high strain behaviour is very sensitive to composition.


1995 ◽  
Vol 413 ◽  
Author(s):  
Qiao-Sheng Hu ◽  
Dilrukshi Vitharana ◽  
Lin Pu

ABSTRACTThe synthesis and characterization of a 1,1′-binaphthyl based main chain chiral conjugated polymer, R-9, is described. The polymer is prepared from the palladium-catalyzed Suzuki coupling of an optically active binaphthyl molecule, (R)-2,2′-dihexyloxy-1,1′-binaphthyl-6,6′- diboronic acid, R-4 with 1,4-bis(p-bromostyryl)benzene (E:Z = 1:1.2), 8. The Suzuki coupling of 8 with 6-neopentyloxynaphthyl-2-boronic acid, 1 1, leads to the formation of a conjugated molecule 10. The structure of this molecule represents the repeat unit of R-9. The electronic absorption spectrum of 10 demonstrates that the degree of conjugation in the chiral conjugated polymer is almost the same as that of its repeat unit.


2015 ◽  
Vol 221 ◽  
pp. 644-652 ◽  
Author(s):  
Lizandra Maria Zimmermann ◽  
Jaqueline Nicolini ◽  
Vanderléia Gava Marini ◽  
Vanderlei Gageiro Machado

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