249508-40-5Relevant articles and documents
Decomposition of vinyl ethers by alkalide K- K+ (15-crown-5)2 via organopotassium intermediates
Grobelny, Zbigniew,Stolarzewicz, Andrzej,Maercker, Adalbert,Krompiec, Stanis,Kasperczyk, Janusz,Rzepa, Józef
, p. 1580 - 1585 (2007/10/03)
The structure of vinyl ethers determines the direction of the C-O bond cleavage by alkalide K-, K+(15-crown-5)2 1. Highly reactive organopotassium compounds are intermediate products formed in the system containing phenyl vinyl ether, butyl vinyl ether, ethylene glycol butyl vinyl ether or triethylene glycol methyl vinyl ether. Vinylpotassium and butylpotassium react with 15-crown-5. The oxacyclic ring of the latter is opened in this case. Organopotassium ethers possessing CH2CH2O units eliminate ethylene. It results in various potassium alkoxides. The reaction of 1 with butyl vinyl ether occurs very slow as compared to other vinyl ethers and most of other reagents used till now.
Synthesis of Monodisperse Perfluoroalkyl-Oxyethylene Surfactants with Methoxy Capping: Surfactants of High Chemical Inertness
Selve, Claude,Achilefu, Samuel
, p. 911 - 912 (2007/10/02)
Monodisperse fluoroalkyl non-ionic surfactants with a methoxy group capping the hydrophilic head, and having a high chemical inertness and surface properties typical of perfluorinated non-ionic surfactants, have been synthesized.
