Synthesis of acetic acid and acetic anhydride from methanol carbonylation with polymer supported rhodium catalyst

2008 ◽  
Vol 9 (5) ◽  
pp. 853-858 ◽  
Author(s):  
Shufeng Zhang ◽  
Cunyue Guo ◽  
Qingli Qian ◽  
Guoqing Yuan
Keyword(s):  
Acetic Acid ◽  
Acetic Anhydride ◽  
Rhodium Catalyst ◽  
Methanol Carbonylation ◽  
Polymer Supported ◽  
Supported Rhodium Catalyst

ChemInform Abstract: A Polymer-Supported Rhodium Catalyst that Functions in Polar Protic Solvents.

ChemInform ◽  
2000 ◽  
Vol 31 (40) ◽  
pp. no-no
Author(s):  
Rebecca A. Taylor ◽  
Brian P. Santora ◽  
Michel R. Gagne
Keyword(s):  
Rhodium Catalyst ◽  
Protic Solvents ◽  
Polymer Supported ◽  
Supported Rhodium Catalyst

A Polymer-Supported Rhodium Catalyst that Functions in Polar Protic Solvents

2000 ◽  
Vol 2 (12) ◽  
pp. 1781-1783 ◽  
Author(s):  
Rebecca A. Taylor ◽  
Brian P. Santora ◽  
Michel R. Gagné
Keyword(s):  
Rhodium Catalyst ◽  
Protic Solvents ◽  
Polymer Supported ◽  
Supported Rhodium Catalyst

Porous organic polymer supported rhodium as a heterogeneous catalyst for hydroformylation of alkynes to α,β-unsaturated aldehydes

2019 ◽  
Vol 55 (91) ◽  
pp. 13721-13724 ◽  
Author(s):  
Zuyu Liang ◽  
Jianbin Chen ◽  
Xin Chen ◽  
Kai Zhang ◽  
Jinhe Lv ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Rhodium Catalyst ◽  
Organic Polymer ◽  
Porous Organic Polymer ◽  
Unsaturated Aldehydes ◽  
Polymer Supported ◽  
Supported Rhodium Catalyst

A novel porous organic polymer supported rhodium catalyst (Rh/POL-BINAPa&PPh3) was developed for the hydroformylation of alkynes to afford α,β-unsaturated aldehydes.

An unusual reaction of a bridged triterpenoid α-diketone with acetic anhydride

1991 ◽  
Vol 56 (12) ◽  
pp. 2917-2935 ◽  
Author(s):  
Eva Klinotová ◽  
Václav Křeček ◽  
Jiří Klinot ◽  
Miloš Buděšínský ◽  
Jaroslav Podlaha ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Nmr Spectroscopy ◽  
Acetic Anhydride ◽  
Spectral Methods ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mild Conditions ◽  
Condensation Products ◽  
Unsaturated Lactones ◽  
C Nmr

3β-Acetoxy-21,22-dioxo-18α,19βH-ursan-28,20β-olide (IIIa) reacts with acetic anhydride in pyridine under very mild conditions affording β-lactone IVa and γ-lactones Va and VIIa as condensation products. On reaction with pyridine, lactones Va and VIIa undergo elimination of acetic acid to give unsaturated lactones VIIIa and IXa, respectively. Similarly, the condensation of 20β,28-epoxy-21,22-dioxo-18α,19βH-ursan-3β-yl acetate (IIIb) with acetic anhydride leads to β-lactone IVb and γ-lactone Vb; the latter on heating with pyridine affords unsaturated lactone VIIIb and 21-methylene-22-ketone Xb. The structure of the obtained compounds was derived using spectral methods, particularly 1H and 13C NMR spectroscopy; structure of lactone IVa was confirmed by X-ray diffraction.

Coulometric generation of acetylions by oxidation of mercury in acetic anhydride and in acetic acid/acetic anhydride mixture

1988 ◽  
Vol 212 ◽  
pp. 73-79 ◽  
Author(s):  
V. Vajgand ◽  
R. Mihajlović ◽  
Lj. Mihajlović ◽  
V. Joksimović
Keyword(s):  
Acetic Acid ◽  
Acetic Anhydride

Microwave Irradiated Acetylation of p-Anisidine: A Step towards Green Chemistry

2008 ◽  
Vol 6 (1) ◽  
Author(s):  
Mousumi Chakraborty ◽  
Vaishali Umrigar ◽  
Parimal A. Parikh
Keyword(s):  
Acetic Acid ◽  
Reaction Time ◽  
Green Chemistry ◽  
Acetic Anhydride ◽  
Microwave Irradiation ◽  
Organic Solvent ◽  
Reaction Times ◽  
Microwave Energy ◽  
Operating Parameters ◽  
Feed Composition

The present study aims at assessing the effect of microwave irradiation against thermal heat on the production of N-acetyl-p-anisidine by acetylation of p-anisidine. The acetylation of p-anisidine under microwave irradiation produces N-acetyl-p-anisidine in shorter reaction times, which offers a benefit to the laboratories as well as industries. It also eliminates the use of excess solvent. Effects of operating parameters such as reaction time, feed composition, and microwave energy and reaction temperature on selectivity to the desired product have been investigated. The results indicate as high as a 98% conversion of N-acetyl-p-anisidine can be achieved within 12-15 minutes using acetic acid. The use of acetic acid as an acetylating agent against conventionally used acetic anhydride eliminates the handling of explosive acetic anhydride and also the energy intensive distillation step for separation of acetic acid. Organic solvent like acetic anhydride are not only hazardous to the environment, they are also expensive and flammable.

Phase Behavior of Hydrogenation of 2-tert-Butylphenol over a Charcoal-Supported Rhodium Catalyst in Carbon Dioxide Solvent†

2009 ◽  
Vol 54 (5) ◽  
pp. 1610-1612 ◽  
Author(s):  
Norihito Hiyoshi ◽  
Yoshio Masuda ◽  
Osamu Sato ◽  
Aritomo Yamaguchi ◽  
Chandrashekhar V. Rode ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Phase Behavior ◽  
Rhodium Catalyst ◽  
Supported Rhodium Catalyst
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