97355-53-8Relevant articles and documents
Air-stable μ2-hydroxyl bridged cationic binuclear complexes of zirconocene perfluorooctanesulfonates: their structures, characterization and application
Zhang, Xiaohong,Xu, Xinhua,Li, Ningbo,Liang, Zhiwu,Tang, Zilong
supporting information, p. 1926 - 1932 (2018/03/21)
Three air-stable zirconocene perfluoro-octanesulfonates were successfully synthesized by treatment of C8F17SO3Ag with (RCp)2ZrCl2 [R = H, n-Bu, t-Bu]. According to X-ray analysis, they have μ2-hydroxyl bridged cationic binuclear structures: (i) [CpZr(OH2)3]2(μ2-OH)2(OSO2C8F17)4·2THF·4H2O (1a·2THF·4H2O), (ii) [n-BuCpZr(OH2)3]2(μ2-OH)2(OSO2C8F17)4·6H2O (2a·6H2O), and (iii) [t-BuCpZr(OH2)3]2(μ2-OH)2(OSO2C8F17)4·2C3H6O·8H2O (3a·2C3H6O·8H2O). The ligands of water and organic molecules in the complexes originated from the moist air and solvent during their recrystallization. These complexes were characterized with different techniques, and found to show water tolerance, air/thermal stability as well as strong Lewis acidity. Moreover, the complexes showed highly catalytic activity in various reactions of C–C bond formation. With good recyclability, they should find wide applications in organic chemistry.
Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reactions and bis indolyl methane synthesis
Mahmoudi, Hajar,Jafari, Abbas Ali,Saeedi, Soroosh,Firouzabadi, Habib
, p. 3023 - 3030 (2015/02/05)
A modified sulfonic acid functionalized magnetic nanoparticle composite (Fe3O4@γFe2O3-SO3H) is prepared by the use of ultrasonic irradiation. By this modification, the size of the nano-particles was r
Gluconic acid aqueous solution as a sustainable and recyclable promoting medium for organic reactions
Zhou, Binghua,Yang, Jie,Li, Minghao,Gu, Yanlong
supporting information; experimental part, p. 2204 - 2211 (2011/10/03)
For the first time, gluconic acid aqueous solution (GAAS), a biobased weakly acidic liquid, was used as an effective promoting medium for organic reactions, such as the Michael addition of indoles to α,β-unsaturated ketones, the electrophilic ring-opening