3386-32-1Relevant articles and documents
Hyperbranched polymeric ionic liquids with onion-like topology as transporters and compartmentalized systems
Schueler, Fabian,Kerscher, Benjamin,Beckert, Fabian,Thomann, Ralf,Muelhaupt, Rolf
supporting information, p. 455 - 458 (2013/02/26)
A new family of hyperbranched polymeric ionic liquids ("hyperILs" ) with onion-like topology and facile polarity design were tailored as transporters and compartmentalized systems. Applications include transport and dispersion of water-soluble dyes and functionalized graphene nanosheets from aqueous phase into nonpolar fluids, including polymer melts.
Solvent-free and selective tosylation of alcohols and phenols with p-toluenesulfonyl chloride by heteropolyacids as highly efficient catalysts
Fazaeli, Razieh,Tangestaninejad, Shahram,Aliyan, Hamid
, p. 812 - 818 (2007/10/03)
Tosylation of some alcohols and phenols has been directly carried out with p-toluenesulfonyl chloride using heterodoxy acids (H3PW 12O40, H3PMo12O40, A 3PW12O40, and AlPMo12O40) as catalysts in the absence of solvent. We found that heteropoly acids AlPW12O40 and AlPMo 12O40 were effective catalysts for the tosylation of alcohols and phenols. In the case of aliphatic alcohols, secondary alcohols undergo tosylation chemoselectively in the presence of primary hydroxyl groups. This new method consistently has the advantage of excellent yields and short reaction time.
ZrCl4 as an efficient catalyst for selective tosylation of alcohols with p-toluenesulfonic acid
Das, Biswanath,Reddy, Vtukuri Saidi
, p. 1428 - 1429 (2007/10/03)
Tosylation of alcohols has directly been carried out with p-toluenesulfonic acid in methylene chloride under reflux using ZrCl4 as a catalyst. Primary alcohols were found to be tosylated chemoselectively over secondary alcohols.
An efficient and selective tosylation of alcohols with p-toluenesulfonic acid
Das, Biswanath,Reddy, V. Saidi,Reddy, M. Ravinder
, p. 6717 - 6719 (2007/10/03)
Silica chloride has been found to be an efficient catalyst for facile tosylation of alcohols directly with p-toluenesulfonic acid in methylene chloride under reflux. The process is associated with selective tosylation of secondary alcohols over primary al
Synthesis of amphiphilic photochromic benzo-15(18)-crown-5(6) ethers and their study in monolayers
Fedorova,Gromov,Eshcheulova,Zeiss,Moebius,Baryshnikova,Vereshchetin,Sergeeva,Zubov,Zaitsev,Alfimov
, p. 637 - 646 (2007/10/03)
New amphiphilic photochromic benzo-15(18)-crown-5(6) ethers (APC) differing in the position of the octadecyl substituent and the size of the crown cavity were synthesized. The compounds form stable monolayers in the air/water and air/alkaline metal salt s
O-Sulfinylation of alcohols with methanesulfonyl cyanide or p-toluenesulfonyl cyanide
Barton, Derek H. R.,Jaszberenyi, Joseph Cs.,Theodorakis, Emmanouil A.
, p. 9167 - 9178 (2007/10/02)
Reaction of p-toluenesulfonyl cyanide or methanesulfonyl cyanide with alcohols in the presence of 1,8-diazabicyclo[5.4.0]under-7-ene (DBU) or 1,4-diazabicyclo[2.2.2]octane (DABCO) gives sulfinates in good yield. A mechanistic scheme involving sulfinyl cyanates 9 and 21 is suggested.