Selective Hydroxylation of Benzene to Phenol over Fe Nanoparticles Encapsulated within N-Doped Carbon Shells

2020 ◽  
Vol 3 (9) ◽  
pp. 9192-9199
Author(s):  
Erjun Lu ◽  
Jiancong Wu ◽  
Baoying Yang ◽  
Dexi Yu ◽  
Zhiyang Yu ◽  
...  
2020 ◽  
Vol 74 (6) ◽  
pp. 489-494
Author(s):  
Eduard Masferrer-Rius ◽  
Raoul M. Hopman ◽  
Jishai van der Kleij ◽  
Martin Lutz ◽  
Robertus J. M. Klein Gebbink

The development of catalysts for the selective hydroxylation of aromatic C–H bonds is an essential challenge in current chemical research. The accomplishment of this goal requires the discovery of powerful metal-based oxidizing species capable of hydroxylating inert aromatic bonds in a selective manner, avoiding the generation of non-selective oxygen-centered radicals. Herein we show an investigation on the ability of nickel(ii) complexes supported by tripodal tetradentate aminopyridine ligands to catalyze the direct hydroxylation of benzene to phenol with H2O2 as oxidant. We have found that modifications on the ligand structure of the nickel complex do not translate into different reactivity, which differs from previous findings for nickel-based arene hydroxylations. Besides, several nickel(ii) salts have been found to be effective in the oxidation of aromatic C–H bonds. The use of fluorinated alcohols as solvent has been found to result in an increase in phenol yield; however, showing no more than two turn-overs per nickel. These findings raise questions on the nature of the oxidizing species responsible for the arene hydroxylation reaction.


2010 ◽  
Vol 20 (39) ◽  
pp. 8575 ◽  
Author(s):  
Bharat S. Rana ◽  
Bhawan Singh ◽  
Rohit Kumar ◽  
Deepak Verma ◽  
Manas K. Bhunia ◽  
...  

2014 ◽  
Vol 4 (12) ◽  
pp. 4232-4241 ◽  
Author(s):  
Shankha S. Acharyya ◽  
Shilpi Ghosh ◽  
Shubhadeep Adak ◽  
Takehiko Sasaki ◽  
Rajaram Bal

A facile hydrothermal synthesis method is developed to prepare CuCr2O4 spinel nanoparticle catalysts with sizes between 25–50 nm for selective hydroxylation of benzene.


ACS Catalysis ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 2850-2858 ◽  
Author(s):  
Shankha Shubhra Acharyya ◽  
Shilpi Ghosh ◽  
Ritesh Tiwari ◽  
Chandrashekar Pendem ◽  
Takehiko Sasaki ◽  
...  

2016 ◽  
Vol 7 (4) ◽  
pp. 2856-2863 ◽  
Author(s):  
Mihoko Yamada ◽  
Kenneth D. Karlin ◽  
Shunichi Fukuzumi

One-step hydroxylation of benzene with hydrogen peroxide to produce phenol catalyzed by a copper(ii) complex.


2017 ◽  
Vol 56 (27) ◽  
pp. 7779-7782 ◽  
Author(s):  
Tomokazu Tsuji ◽  
Antonius Andre Zaoputra ◽  
Yutaka Hitomi ◽  
Kaoru Mieda ◽  
Takashi Ogura ◽  
...  

2003 ◽  
Vol 243 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Karin Lemke ◽  
Heike Ehrich ◽  
Ursula Lohse ◽  
Heinz Berndt ◽  
Klaus Jähnisch

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