Alkyl Vinyl Ether

Many inorganic salts can be made soluble in nonpolar organic solvents by complexing them with an appropriate crown ether.

Alkyl vinyl ether.

Pummer and leo a. The alkyl groups in the alkyl vinyl ethers had only a small influence on the diastereoselectivity. With 2 substituted alkyl vinyl ethers 4g and 4h the reactions did not proceed at 78 c. Nafion is a perfluorinated polyether with pendant sulfonic acid.

Krytox is a grease generated by the polymerization of hexafluoropropylene oxide. The exterior of the complex is nonpolar masked by the alkyl groups of the crown ether. Pentafluorophenyl alkyl and vinyl ethers author. Discuss 1 alkyl vinyl ether chemical compound 0 000 title claims abstract description 32.

In these materials the ether groups are pendant from the polymer backbone. The ether groups are integral to the polymer chain. Methyl vinyl ether is an organic compound with the chemical formula ch 3 och ch 2 a colorless gas it is the simplest enol ether it is used as a synthetic building block as is the related compound ethyl vinyl ether a liquid at room temperature. Although the reaction with the 1 substituted alkyl vinyl ether 4f also afforded the acetal products in high yields the dr was very low entry 6.

Previous approaches toward stereoselective vinyl ether polymerizations have exclusively relied on chain end control to dictate facial addition to the propagating oxocarbenium ion which has provided access to isotactic pves in specific cases but is not general to alkyl vinyl ether monomers as a class 13 19. Their chemical formula is f cf cf 3 cf 2 o n cf 2 cf 3. The vinyl carbonate 13 152 gives only copolymerization the ketene acetal 11 153 and the methyl vinyl ether 14 152 give both copolymerization and chain transfer in styrene polymerization whereas with the benzyl vinyl ethers 12 153 15 8 and 16 18 151 chain transfer is the only reaction detected.