High selective hydroxylation of phenol catalyzed by PNP ligand‐containing [FeFe]‐hydrogenase model complexes

2020 ◽  
Vol 95 (8) ◽  
pp. 2180-2186
Author(s):  
Bin Li ◽  
Di Wang ◽  
Tianyong Zhang ◽  
Shuang Jiang ◽  
Jingchao Wang ◽  
...  
Keyword(s):  
Model Complexes ◽  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation

Investigation of [Ni{Me4Bzo2[14]aneN4}]Cl2 catalyzed selective hydroxylation of phenol to catechol by H2O2 in the homogeneous medium

2004 ◽  
Vol 218 (2) ◽  
pp. 125-132 ◽  
Author(s):  
Hanna S Abbo ◽  
Salam J.J Titinchi ◽  
Shri Chand ◽  
Rajendra Prasad
Keyword(s):  
Homogeneous Medium ◽  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation

Mesoporous polymer–silica catalysts for selective hydroxylation of phenol

2006 ◽  
Vol 8 (2) ◽  
pp. 144 ◽  
Author(s):  
Amit Dubey ◽  
Minkee Choi ◽  
Ryong Ryoo
Keyword(s):  
Hydroxylation Of Phenol ◽  
Mesoporous Polymer ◽  
Selective Hydroxylation

Selective hydroxylation of phenol

1985 ◽  
Vol 19 (1) ◽  
pp. 214
Keyword(s):  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation

Catalysis of metalloporphyrins for selective hydroxylation of phenol by H2O2

2006 ◽  
Vol 10 (02) ◽  
pp. 96-103 ◽  
Author(s):  
Hai-Qiang Zeng ◽  
Quan Jiang ◽  
Yun-Fei Zhu ◽  
Xu-Hui Yan ◽  
Xue-Bo Liang ◽  
...  
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Ph Value ◽  
Molar Ratio ◽  
High Catalytic Activity ◽  
Solvent Ratio ◽  
Optimum Conditions ◽  
Hydroxylation Of Phenol ◽  
Water As Solvent ◽  
Selective Hydroxylation

Liquid phase catalytic selective hydroxylation of phenol to catechol and hydroquinone was carried out in the presence of metalloporphyrins using hydrogen peroxide as oxidant and water as solvent. Five kinds of metal tetra(p-chlorophenyl)porphrin ( T (p- Cl ) PPMCl , M = Fe , Co , Mn , Cu , Zn ) were studied. It was found that T (p- Cl ) PPFeCl had high catalytic activity and diphenol selectivity for the hydroxylation of phenol to catechol and hydroquinone. The influence of various reaction parameters, namely, reaction temperature, solvent, ratio of substrate and oxidant, substrate concentration, the amount of catalyst, reaction time and pH value were investigated systematically. When water was used as solvent (10 mL), the optimum conditions were following: pH = 7, the concentration of phenol was 0.3 g/mL, the molar ratio of phenol and H 2 O 2 was 1/2, the molar ratio of catalyst and phenol was 7/100000, the reaction temperature was 65°C and the reaction time was 1.5 h. Under above optimum conditions, the phenol conversion was up to 55.1%, and the selectivity of diphenol was almost up to 99.9%, the molar turnover numbers of the catalyst was about 7500. A possible mechanism was also proposed.

Selective hydroxylation of phenol employing Cu–MCM-41 catalysts

2002 ◽  
Vol 75 (1-4) ◽  
pp. 189-195 ◽  
Author(s):  
L Noreña-Franco ◽  
I Hernandez-Perez ◽  
J Aguilar-Pliego ◽  
A Maubert-Franco
Keyword(s):  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation ◽  
Mcm 41

Photocatalytic selective hydroxylation of phenol to dihydroxybenzene by BiOI/TiO2 p-n heterojunction photocatalysts for enhanced photocatalytic activity

2018 ◽  
Vol 439 ◽  
pp. 1047-1056 ◽  
Author(s):  
Bin Li ◽  
Xingwei Chen ◽  
Tianyong Zhang ◽  
Shuang Jiang ◽  
Guanghui Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation

Facile Synthesis of Bi2O3/TiO2−xNx and its Direct Solar-Light-Driven Photocatalytic Selective Hydroxylation of Phenol

ChemCatChem ◽  
2010 ◽  
Vol 3 (2) ◽  
pp. 311-318 ◽  
Author(s):  
Brundabana Naik ◽  
K. M. Parida ◽  
G. C. Behera
Keyword(s):  
Solar Light ◽  
Facile Synthesis ◽  
Hydroxylation Of Phenol ◽  
Selective Hydroxylation

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

Sign in / Sign up

Export Citation Format

Share Document