914930-12-4Relevant articles and documents
Helicity induction in charged poly(phenylacetylene)s bearing various acidic functional groups in water and its mechanism
Onouchi, Hisanari,Hasegawa, Takashi,Kashiwagi, Daisuke,Ishiguro, Hiroyuki,Maeda, Katsuhiro,Yashima, Eiji
, p. 8625 - 8633 (2005)
We investigated the helicity induction in a series of stereoregular cis-transoidal poly-(phenylacetylene)s bearing various acidic functional groups, such as a phosphonic acid and its monoethyl ester (poly-1-H and poly-2-H, respectively), a carboxylic acid
Tagged hypervalent iodine reagents: A new purification concept based on ion exchange through SN2 substitution
Kunst, Eike,Gallier, Florian,Dujardin, Gilles,Yusubov, Mekhman S.,Kirschning, Andreas
, p. 5199 - 5202 (2008/09/17)
(Chemical Equation Presented) The preparation of phenylsulfonate-tagged iodine(III) reagents as well as their use in a novel purification strategy for iodine(III)-promoted reactions is described. The concept is based on ion exchange and is initiated by an azide-promoted SN2-reaction at the alkyl sulfonate followed by trapping of the resulting aryl sulfonate anion with an ion-exchange resin. The concept is successfully proven for Ru-catalyzed oxidations of alcohols, the activation and glycosidatlon of thioglycosides, and the Suarez reaction of pyranoses.