DFT Study of the 1-Octene Metathesis Reaction Mechanism with WCl6/C Catalytic System

2008 ◽  
Vol 112 (20) ◽  
pp. 4636-4643 ◽  
Author(s):  
Dilek Yüksel ◽  
Bülent Düz ◽  
Fatma Sevin
Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1234
Author(s):  
Zhiwei Jiang ◽  
Di Hu ◽  
Zhiyue Zhao ◽  
Zixiao Yi ◽  
Zuo Chen ◽  
...  

Efficient conversion of renewable biomass into value-added chemicals and biofuels is regarded as an alternative route to reduce our high dependence on fossil resources and the associated environmental issues. In this context, biomass-based furfural and levulinic acid (LA) platform chemicals are frequently utilized to synthesize various valuable chemicals and biofuels. In this review, the reaction mechanism and catalytic system developed for the generation of furfural and levulinic acid are summarized and compared. Special efforts are focused on the different catalytic systems for the synthesis of furfural and levulinic acid. The corresponding challenges and outlooks are also observed.


Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1651
Author(s):  
Felipe de la Cruz-Martínez ◽  
Marc Martínez de Sarasa Buchaca ◽  
Almudena del Campo-Balguerías ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  

The catalytic activity and high selectivity reported by bimetallic heteroscorpionate acetate zinc complexes in ring-opening copolymerization (ROCOP) reactions involving CO2 as substrate encouraged us to expand their use as catalysts for ROCOP of cyclohexene oxide (CHO) and cyclic anhydrides. Among the catalysts tested for the ROCOP of CHO and phthalic anhydride at different reaction conditions, the most active catalytic system was the combination of complex 3 with bis(triphenylphosphine)iminium as cocatalyst in toluene at 80 °C. Once the optimal catalytic system was determined, the scope in terms of other cyclic anhydrides was broadened. The catalytic system was capable of copolymerizing selectively and efficiently CHO with phthalic, maleic, succinic and naphthalic anhydrides to afford the corresponding polyester materials. The polyesters obtained were characterized by spectroscopic, spectrometric, and calorimetric techniques. Finally, the reaction mechanism of the catalytic system was proposed based on stoichiometric reactions.


2006 ◽  
Vol 110 (10) ◽  
pp. 3552-3558 ◽  
Author(s):  
Xian-Yang Chen ◽  
Yi-Xin Zhao ◽  
Shu-Guang Wang

2000 ◽  
Vol 19 (18) ◽  
pp. 3516-3526 ◽  
Author(s):  
Jorge J. Carbó ◽  
Carles Bo ◽  
Josep M. Poblet ◽  
Josep M. Moretó

2009 ◽  
Vol 113 (24) ◽  
pp. 6730-6739 ◽  
Author(s):  
Chun-Yi Sung ◽  
Randall Q. Snurr ◽  
Linda J. Broadbelt

2020 ◽  
Vol 139 (8) ◽  
Author(s):  
Xiaozhen Gao ◽  
Yu Pang ◽  
Jing Yang ◽  
Xiaochun Yang ◽  
Yulong Shen ◽  
...  
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