Synthesizing Vinyl Ethers

Ethyl vinyl ether is made by reaction of acetylene and ethanol in presence of a base.

Synthesizing vinyl ethers. Vinyl ethers undergo radical initiated copolymerization in the presence of specific monomers such as maleates fumarates and acrylics. Amazing achievements in vinyl ether ve chemistry from the first example of ve polymerization to a plethora of recent research facilitated enormous progress in ves synthesis and in design of advanced polymer materials the fundamentally important point in this subject is the remarkable versatility of ve structures that resonates with the tunability of the. The use of a p n ligand enables a highly regioselective ni catalyzed hydroalkoxylation of 1 3 dienes. The optimized protocol operates under.

The alkene portion of the molecule is reactive in many ways. An efficient method to synthesize vinyl ethers ves that bear various halogenated or functional groups and their radical copolymerization with chlorotrifluoroethylene ctfe to yield functional poly ve alt ctfe alternated copolymers. They are increasingly used in radiation curing systems because of a lower toxicity profile than the commonly used acrylic monomers. Soc 2003 125 4978 4979.

Vinyl ethers 1 x ch 2 a o can be very effective addition fragmentation chain transfer agents. A new method for the preparation of alkyl vinyl ethers has been developed. It is also important that r is a good radical leaving group. Methods for vinyl ether synthesis david j.

Furthermore an experimentally simple stereoselective synthesis of of vinyl ethers is delineated using the same catalyst system. Vinyl ethers are a highly relevant moiety for organic synthesis allowing a rich follow up chemistry. 8 21 227 228 the mechanism for chain transfer is shown in scheme 9 for the case of α benzyloxystyrene 15 the driving force for fragmentation is provided by formation of a strong carbonyl double bond. Use of ethyl vinyl ether in the synthesis of glutaraldehyde.

Thus various types of alkyl vinyl ethers were synthesized by the reaction of alcohols with vinyl acetate under the influence of a catalytic amount of ir cod cl 2 combined with na2co3 in good to excellent yields. 14 they are used in many fields especially the impact on polymer science is noteworthy. It is prone to polymerization leading to formation of polyvinyl ethers. 15 as a scaffold of interest many protocols for vinyl ether synthesis have been developed.

Merlic department of chemistry and biochemistry university of california los angeles 607 charles e.