scholarly journals Mechanistic study of the rhodium-catalyzed carboxylation of simple aromatic compounds with carbon dioxide

2017 ◽  
Vol 8 (2) ◽  
pp. 1454-1462 ◽  
Author(s):  
Takuya Suga ◽  
Takanobu Saitou ◽  
Jun Takaya ◽  
Nobuharu Iwasawa
Keyword(s):  
Carbon Dioxide ◽  
Aromatic Compounds ◽  
Mechanistic Study

A detailed mechanistic study of the rhodium-catalyzed carboxylation of aromatic compounds was carried out to clarify the unique characteristics of this reaction.

Copper-Catalyzed Formal CH Carboxylation of Aromatic Compounds with Carbon Dioxide through Arylaluminum Intermediates

2014 ◽  
Vol 10 (4) ◽  
pp. 1010-1016 ◽  
Author(s):  
Atsushi Ueno ◽  
Masanori Takimoto ◽  
Wylie W. N. O ◽  
Masayoshi Nishiura ◽  
Takao Ikariya ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Aromatic Compounds

Carboxylation of aromatic compounds in a supercritical carbon dioxide medium

2012 ◽  
Vol 6 (7) ◽  
pp. 818-826 ◽  
Author(s):  
A. V. Shlyakhtin ◽  
S. Z. Vatsadze ◽  
D. P. Krut’ko ◽  
D. A. Lemenovskii ◽  
M. V. Zabalov
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Supercritical Carbon

Intermolecular proton transfer in cyclic carbonate synthesis from epoxide and carbon dioxide catalyzed by azaphosphatranes: a DFT mechanistic study

RSC Advances ◽  
2015 ◽  
Vol 5 (16) ◽  
pp. 12382-12386 ◽  
Author(s):  
Zhiqiang Zhang ◽  
Liancai Xu ◽  
Wenkai Feng
Keyword(s):  
Carbon Dioxide ◽  
Proton Transfer ◽  
Dft Calculations ◽  
Cyclic Carbonate ◽  
Solvent Free ◽  
Mechanistic Study ◽  
Cyclic Carbonates ◽  
Intermolecular Proton Transfer

The activity of azaphosphatranes, novel types of non-metal and solvent-free catalysts for the synthesis of cyclic carbonates from epoxides and CO2, is unraveled by DFT calculations.

The degradation of p-toluenesulfonate by a Pseudomonas

1970 ◽  
Vol 16 (5) ◽  
pp. 309-316 ◽  
Author(s):  
D. D. Focht ◽  
F. D. Williams
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Uptake ◽  
Aromatic Compounds ◽  
Carbon Sources ◽  
Sole Source ◽  
Carbon Chain ◽  
Ring Cleavage ◽  
Resting Cells ◽  
Resting Cell ◽  
Complete Mineralization

A Pseudomonas isolated from sewage was adapted to use p-toluenesulfonate as the sole source of both carbon and sulfur. Very few of over 30 aromatic compounds tested were used for growth as sole carbon sources. Significantly, sulfobenzoate, phenolsulfonates, and isomers of cresolsulfonates did not support growth. Respirometry studies with washed, resting cells showed similar results. In both studies, benzenesulfonate was always used more rapidly than p-toluenesulfonate. The degradation of p-toluenesulfonate was shown to be over 90% of the theoretical value required for complete mineralization to carbon dioxide, water, and sulfate. When resting cells were incubated with 35S-p-toluenesulfonate, the ratio of oxygen uptake to 35S-sulfate liberation remained constant during the complete degradation period. Radiochromatographic analysis showed no 35S-aromatic intermediates in resting-cell supernatants at any time. Resting cells previously incubated with 35S-p-toluenesulfonate liberated two 35S-labeled aromatic intermediates upon disruption. Resting cells incubated with 1-14C-p-toluenesulfonate produced labeled 3-methylcatechol, labeled acetate, and unlabeled pyruvate. The labeled intermediate, 3-methylcatechol, was degraded by cell-free extracts to labeled acetate. Hydroxylation, desulfonation, ring cleavage, and subsequent fissions of the carbon chain occurred in that order; all steps but the first were catalyzed by cell-free extracts.

Solvolysis of benzyl phenyl ether in high-temperature aqueous methanol solution under high-pressure carbon dioxide

2021 ◽  
Author(s):  
Kenkichi Taniguchi ◽  
Hidetaka Nanao ◽  
Osamu Sato ◽  
Aritomo Yamaguchi ◽  
Masayuki Shirai
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
High Temperature ◽  
Aromatic Compounds ◽  
Methanol Solution ◽  
Phenyl Ether ◽  
Aqueous Methanol ◽  
Benzyl Phenyl Ether

Alcoholysis of benzyl phenyl ether to various aromatic compounds was studied in high-temperature aqueous methanol solution under high-pressure carbon dioxide conditions.

On the mechanism of methanol photooxidation to methylformate and carbon dioxide on TiO2: an operando-FTIR study

2015 ◽  
Vol 17 (17) ◽  
pp. 11277-11283 ◽  
Author(s):  
Mohamad El-Roz ◽  
Philippe Bazin ◽  
Marco Daturi ◽  
Frederic Thibault-Starzyk
Keyword(s):  
Carbon Dioxide ◽  
Gas Phase ◽  
Phase Analysis ◽  
Mechanistic Study ◽  
Analysis Techniques ◽  
Ftir Study

This work is a mechanistic study of total and partial methanol photooxidation using operando FTIR coupled to gas phase analysis techniques (gas-IR and MS).

scholarly journals Mechanistic study on ligand-controlled copper-catalyzed regiodivergent silacarboxylation of allenes with carbon dioxide and silylborane

RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 29035-29041 ◽  
Author(s):  
Shu-Min Han ◽  
Xingdong Wang ◽  
Shenhua Miao ◽  
Zhang-Yu Yu ◽  
Tao Liu
Keyword(s):  
Carbon Dioxide ◽  
Mechanistic Study

The origin of ligand-controlled copper-catalyzed regiodivergent silacarboxylation was rationalized.

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