Access to Aryl Mellitic Acid Esters through a Surprising Oxidative Esterification Reaction

2014 ◽  
Vol 79 (11) ◽  
pp. 5334-5337 ◽  
Author(s):  
Margarita R. Geraskina ◽  
Mark J. Juetten ◽  
Arthur H. Winter
Keyword(s):  
Esterification Reaction ◽  
Oxidative Esterification ◽  
Mellitic Acid ◽  
Acid Esters

ChemInform Abstract: Access to Aryl Mellitic Acid Esters Through a Surprising Oxidative Esterification Reaction.

ChemInform ◽  
2014 ◽  
Vol 45 (47) ◽  
pp. no-no
Author(s):  
Margarita R. Geraskina ◽  
Mark J. Juetten ◽  
Arthur H. Winter
Keyword(s):  
Esterification Reaction ◽  
Oxidative Esterification ◽  
Mellitic Acid ◽  
Acid Esters

ChemInform Abstract: N-Heterocyclic Carbene-Catalyzed Oxidative Esterification Reaction of Aldehydes with Alkyl Halides under Aerobic Conditions.

ChemInform ◽  
2012 ◽  
Vol 43 (14) ◽  
pp. no-no
Author(s):  
Yang-Chun Xin ◽  
Shi-Hui Shi ◽  
Dong-Dong Xie ◽  
Xin-Ping Hui ◽  
Peng-Fei Xu
Keyword(s):  
Alkyl Halides ◽  
Esterification Reaction ◽  
Aerobic Conditions ◽  
Oxidative Esterification

N-Heterocyclic Carbene-Catalyzed Oxidative Esterification Reaction of Aldehydes with Alkyl Halides under Aerobic Conditions

2011 ◽  
Vol 2011 (32) ◽  
pp. 6527-6531 ◽  
Author(s):  
Yang-Chun Xin ◽  
Shi-Hui Shi ◽  
Dong-Dong Xie ◽  
Xin-Ping Hui ◽  
Peng-Fei Xu
Keyword(s):  
Alkyl Halides ◽  
Esterification Reaction ◽  
Aerobic Conditions ◽  
Oxidative Esterification

Analysis of Products Obtained in Chemical Interesterification of Rapeseed Oil with Methyl Formate

2019 ◽  
Vol 800 ◽  
pp. 93-97 ◽  
Author(s):  
Lauma Laipniece ◽  
Zane Abelniece ◽  
Valdis Kampars
Keyword(s):  
Rapeseed Oil ◽  
Methyl Formate ◽  
Lower Layer ◽  
Fatty Acid Esters ◽  
Esterification Reaction ◽  
Chemical Interesterification ◽  
Determination Methods ◽  
Acid Esters ◽  
C Nmr

Chemical interesterification is one possible way to produce biofuel from vegetable oils. Rapeseed oil interesterification with methyl formate using 1M tBuOK catalyst in tBuOH yields product in two layers. The upper layer contains fatty acid esters. Analysis of lower layer by 13C NMR method shows that it contains glycerol and glycerol formates. To develop quantitative determination methods using HPLC and GC, glycerol formates are synthesized in Fisher esterification reaction and used as standards. HPLC analysis is fast, but suitable only for determination of diformin and triformin. GC analysis gives content for all components but is more time consuming.

scholarly journals Cytosine Palladium Complex Supported on Ordered Mesoporous Silica as Highly Efficient and Reusable Nanocatalyst for One-Pot Oxidative Esterification of Aldehydes

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1482
Author(s):  
Fatemeh Rajabi ◽  
Chin Hua Chia ◽  
Mika Sillanpää ◽  
Leonid G. Voskressensky ◽  
Rafael Luque
Keyword(s):  
Large Scale ◽  
Esterification Reaction ◽  
Ambient Conditions ◽  
One Pot ◽  
Food Ingredients ◽  
Green Protocol ◽  
Oxidative Esterification ◽  
Mesoporous Organosilica ◽  
Ordered Mesoporous ◽  
High Yields

The synthesis of esters is one of the most fundamental and significant subjects in organic chemistry and chemical industry because they are used in high-value products such as cosmetics, biofuel, pharmaceuticals, surfactants, and food ingredients. In this study, an efficient, economic, sustainable, and green protocol for oxidative esterification reaction has been developed. A one-pot direct transformation of aliphatic, aromatic, and unsaturated aldehydes into esters in the presence of oxygen has been carried out over mesoporous organosilica-supported palladium nanocatalyst (Pd-Cyt@SBA-15) under ambient conditions. Pd-Cyt@SBA-15 efficiently catalyzed selectively large-scale conversion of aldehydes into esters in high yields and large turnover numbers (TON = 98,000). Pd-Cyt@SBA-15 nanocatalyst demonstrated excellent reusability and stability and could be recycled up to ten times without loss of significant reactivity. ICP-AES analysis showed that no leaching of active palladium species occurred during the recycling process of the heterogeneous Pd-Cyt@SBA-15 nanocatalyst.

scholarly journals Efficient Synthesis of Methyl Methacrylate by One Step Oxidative Esterification over Zn-Al-Mixed Oxides Supported Gold Nanocatalysts

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 162
Author(s):  
Huayin Li ◽  
Yuan Tan ◽  
Xingkun Chen ◽  
Wenshao Yang ◽  
Chuanqi Huang ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Mixed Oxides ◽  
Gold Catalyst ◽  
Co Adsorption ◽  
Gold Catalysts ◽  
Esterification Reaction ◽  
X Ray ◽  
Oxidative Esterification ◽  
One Step ◽  
Supported Gold

Methyl methacrylate (MMA) is an important monomer in fine chemicals. The synthesis of MMA by one-step oxidative esterification from methacrolein with methanol over a heterogeneous catalyst with high activity, selectivity and stability is highly desirable. Herein, Zn-Al-hydrotalcites (HTs)-supported atomically precise Au25 nanoclusters with different molar ratios of Zn2+/Al3+ were prepared and used as the precursors for this reaction. They exhibited good performances in comparison with the gold catalysts prepared by the deposition precipitation method. The structural and electronic properties were evaluated by various characterization technologies, including X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), in situ diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) of CO adsorption, X-ray photoelectron spectroscopy (XPS), and CO2 temperature-programmed desorption (TPD). The combined characterization results suggested that the adsorption property of gold and the basicity of the catalyst contributes to their high activities. Substrates extended experiments and stability tests implied the potential application of Zn-Al-mixed oxides supported gold catalysts, which paves a new way for supported gold catalyst in the one-step oxidation esterification reaction.

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