Highly Chemoselective Methylation and Esterification Reactions with Dimethyl Carbonate in the Presence of NaY Faujasite. The Case of Mercaptophenols, Mercaptobenzoic Acids, and Carboxylic Acids Bearing OH Substituents

2006 ◽  
Vol 71 (4) ◽  
pp. 1464-1470 ◽  
Author(s):  
Maurizio Selva ◽  
Pietro Tundo
Keyword(s):  
Carboxylic Acids ◽  
Dimethyl Carbonate ◽  
Esterification Reactions

Large scale microwave-accelerated esterification of carboxylic acids with dimethyl carbonate

2002 ◽  
Vol 43 (32) ◽  
pp. 5607-5609 ◽  
Author(s):  
Wen-Chung Shieh ◽  
Steven Dell ◽  
Oljan Repič
Keyword(s):  
Carboxylic Acids ◽  
Large Scale ◽  
Dimethyl Carbonate

scholarly journals Wood Surface Modification—Classic and Modern Approaches in Wood Chemical Treatment by Esterification Reactions

Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 629 ◽  
Author(s):  
Carmen-Alice Teacă ◽  
Fulga Tanasă
Keyword(s):  
Surface Modification ◽  
Carboxylic Acids ◽  
Wood Surface ◽  
Dicarboxylic Acids ◽  
Hydroxyl Groups ◽  
Acyl Chlorides ◽  
Complex Processes ◽  
Mechanical Durability ◽  
Long Time ◽  
Esterification Reactions

Wood surface modification is a comprehensive concept which, in time, turned out to be as successful as challenging when it comes to improve the resistance of wood during its life cycle in both indoor and outdoor applications. The initial approaches have aimed at simple methods with immediate results. Nowadays, the paradigm has slightly changed due to the scientific and technical advances, and some methods has become intermediate stages in more complex processes, after being used, for long time, as stand-alone procedures. The esterification was employed as a convenient method for wood surface modification due to the high amount of free hydroxyl groups available at the surface of wood and other lignocellulosic materials. Therefore, different esterification approaches were tested: activated condensation with carboxylic acids (monocarboxylic, as well as dicarboxylic acids, fatty acids, etc.) in the presence of condensation activating agents (such as trifluoroacetic anhydride); reaction with β-halogen-substituted carboxylic acids; esterification using carboxylic acids derivatives (acyl chlorides, anhydrides) or even multifunctional carboxylic acids (i.e., tricine). Thus, wood with improved dimensional stability and weathering resilience, higher fire resistance, enhanced hydrophobic character, and mechanical durability was obtained. This paper offers an overview of some of the most recent advances reported in the field, presented in a systematic manner, using the type of reaction as classification criterion. The main improvements will be outlined in a critical assessment in order to provide an useful tool for a wise choice in future applications.

ChemInform Abstract: Large Scale Microwave-Accelerated Esterification of Carboxylic Acids with Dimethyl Carbonate.

ChemInform ◽  
2010 ◽  
Vol 33 (42) ◽  
pp. no-no
Author(s):  
Wen-Chung Shieh ◽  
Steven Dell ◽  
Oljan Repic
Keyword(s):  
Carboxylic Acids ◽  
Large Scale ◽  
Dimethyl Carbonate

STUDYING OF THE CONDITIONS OF ERYTHRITOL, MANNITOL, SORBITOL, XYLITOL, TARTARIC AND CITRIC ACIDS ESTERIFICATION BY USING HIGH ALIPHATIC CARBOXYLIC ACIDS AND ALCOHOLS

2020 ◽  
Vol 54 (1 (251)) ◽  
pp. 17-25
Author(s):  
G.S. Grigoryan ◽  
A.Ts. Malkhassyan
Keyword(s):  
Comparative Study ◽  
Carboxylic Acids ◽  
Acid Catalysis ◽  
Acid Catalysts ◽  
Aliphatic Acids ◽  
Tartaric Acids ◽  
Esterification Reactions ◽  
Aliphatic Carboxylic Acids

A comparative study of the esterification reactions of erythritol, mannitol, sorbitol, xylitol, citric and tartaric acids with higher aliphatic acids and alcohols without catalysts and under conditions for acid catalysis at temperatures of 150–200ºC has been carried out. Optimum temperatures and conditions for the expediency of using solvents and acid catalysts to increase the yields of esters were determined.

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