Synthesis of vinyl esters of organosilicon carboxylic acids

1965 ◽  
Vol 14 (10) ◽  
pp. 1842-1843
Author(s):  
N. V. Komarov ◽  
N. V. Semenova
Keyword(s):  
Carboxylic Acids ◽  
Vinyl Esters

Novel, Highly Efficient and Selective Ruthenium Catalysts for the Synthesis of Vinyl Esters from Carboxylic Acids and Alkynes

2009 ◽  
Vol 2009 (29) ◽  
pp. 5020-5027 ◽  
Author(s):  
François Nicks ◽  
Rosario Aznar ◽  
Daniel Sainz ◽  
Guillermo Muller ◽  
Albert Demonceau
Keyword(s):  
Carboxylic Acids ◽  
Ruthenium Catalysts ◽  
Vinyl Esters ◽  
Highly Efficient

Microwave-Assisted Synthesis of Vinyl Esters through Ruthenium-Catalyzed Addition of Carboxylic Acids to Alkynes

2009 ◽  
Vol 62 (3) ◽  
pp. 227 ◽  
Author(s):  
François Nicks ◽  
Lionel Libert ◽  
Lionel Delaude ◽  
Albert Demonceau
Keyword(s):  
Carboxylic Acids ◽  
Efficient Method ◽  
Microwave Assisted Synthesis ◽  
Selective Synthesis ◽  
Terminal Alkynes ◽  
Vinyl Esters ◽  
Microwave Assisted ◽  
Enol Esters

A rapid and efficient method is described for the selective synthesis of enol esters via the microwave-accelerated addition of carboxylic acids to terminal alkynes. The method employs the readily available [RuCl2(p-cymene)(PPh3)] complex as catalyst without the need of bases, and reactions are complete in 20 min.

scholarly journals HOMOGENEOUS VINYLATION OF 2-HYDROXY-2 PHENYLETHANICAL ACID

2018 ◽  
Vol 6 (11) ◽  
pp. 350-354
Author(s):  
Parmanov A.B. ◽  
Nurmanov S.E. ◽  
Tomash Maniecki ◽  
Ziyadullayev O.E. ◽  
Abdullayev J.U.
Keyword(s):  
Carboxylic Acids ◽  
Vinyl Ester ◽  
Mandelic Acid ◽  
Heterogeneous Catalysts ◽  
Raw Materials ◽  
Zinc Salt ◽  
Vinyl Esters ◽  
Catalytic Systems ◽  
Heterogeneous Catalytic ◽  
Ethylene Series

Homogeneous-catalytical vinylation of 2-hydroxy-2-phenylethanical acid was carried out. Influence of catalylists nature, temperature and duration reaction on yield of synthesized vinyl ester has been investigated. basis of natural raw materials. Based on vinyl esters of carboxylic acids, their polymers and copolymers with unsaturated compounds of the ethylene series, emulsifiers for emulsion paints have been obtained; compounds that improve the viscosity of lubricating oils and are used as crosslinking agents in the rubber industry. Synthesis of vinyl esters based on monobasic aliphatic acids has been studied by the example of acetic acid by many researchers. In this respect, the aromatic carboxylic acids remain unexplored. Goal: Synthesis of vinyl ester of mandelic acid by it’s reaction with acetylene in the presence of heterogeneous catalysts, investigation of the influence of the nature of catalysts and the reaction temperature on the yield of obtained product. Methodology: Catalytic systems based on AlCl3∙6H2O or zinc salt of mandelic acid with dimethylsulfoxide were prepared and heterogeneous catalytic vinylation of mandelic acid with acetylene was carried out and it’s vinyl ether was obtained. Scientific Novelty. The synthesis of vinyl ester of mandelic acid with it’s reactions with acetylene using the catalytic systems AlCl3∙6H2O-DMSO and (C6H5CH(OH)COO)2Zn-DMSO was carried out. Obtained Data: The vinyl ester of mandelic acid was synthesized by it’s vinylation in stationary heterogeneous conditions. The influence of the nature of the catalyst (AlCl3∙6H2O, (C6H5CH(OH)COO)2Zn), temperature and duration of the reaction on the yield of the product was investigated. Features: vinylation of hydroxy carboxylic acid was investigated; the catalytic systems AlCl3∙6H2O-DMSO and (C6H5CH(OH)COO)2Zn-DMSO are used; factors influencing the yield of vinyl ester of mindalic acid and optimal conditions of it’s synthesis were found.

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