Vinyl Ether Carboxylic Acid

The other carboxylic acids and vinyl ethers were commercially avail able and they were used as received.

Vinyl ether carboxylic acid.

Mechanistic studies revealed the production of the adduct of the vinyl ether with. The reaction of vinyl ethers with carboxylic acids using iodine as a catalyst under solvent free conditions was investigated. Vinyl ethers are attractive alternatives to meth acrylates due to low allergenic hazards low toxicity and fast polymerization. Tan 2 yl acetic acid 12 were prepared from the corre sponding ketones as previously reported 1 5.

Vinyl allylic aryl benzylic n h h o h o oh nh2 o sh ch3 o oh h2 n oh oh o h o oh2 above 50 7 2 to 3 2 to 3 4 5 9 10 10 10 16 18 18 20 25. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed expired fee related application number us07 507 349 inventor walter r. This would for example allow for fatty acids or other carboxylic acids to be used which can make the vinyl ether monomers more bio based 14 15 in this work we present a novel method that can be used to. Ammonium ion pka.

Acetic acid adds in the presence of palladium catalysts to give ethylidene diacetate ch 3 ch oac 2. 1 2 4 trimellitic acid is rigid white crystal with high melting point and cannot be solved by organic solvent. Most of blocked carboxylic acids obtained were liquid. The alkene also undergoes diels alder and 2 2 cycloadditions.

Carboxylic acid pka 4 5 4. In the present study vinyl ether alcohols and functional carboxylic acids were used to synthesize bifunctional vinyl ether esters using the immobilized enzyme candida antarctica lipase b as a catalyst. It undergoes transesterification with a variety of carboxylic acids. 2 3 esteri cation of 3 hydroxy acids with vinyl ether the typical procedure is as follow s entry 11 in table 5.

Vinyl acetate undergoes transesterification giving access to vinyl ethers. 22 23 esterification of bis mpa with 2 chloroethyl vinyl ether followed by cyclization using ethyl chloroformate yielded cyclic carbonate monomer. Polycarboxylic acids were esterified with alkyl vinyl ethers to obtain blocked carboxylic acids having the hemiacetal esters moieties. The reaction of saturated carboxylic acids with vinyl ethers gave the corresponding esters.

Protonated alcohol or ether pka 2 to 3 h2 35 3. Carboxylic acids without the need for derivatives or scavengers would be preferred for the synthesis of vinyl ether functional esters. The facile general acid catalyzed conversion of 2 ethoxy 1 cyclopentene 1 carboxylic acid to cyclopentanone.