52726-86-0Relevant academic research and scientific papers
A simple and efficient room temperature silylation of diverse functional groups with hexamethyldisilazane using CeO2 nanoparticles as solid catalysts
Anbu, Nagaraj,Vijayan, Chellappa,Dhakshinamoorthy, Amarajothi
, (2019/06/08)
In this study, a mild and efficient method is developed for the silylation of diverse functional groups using CeO2 nanoparticles (n-CeO2) as solid catalysts with hexamethyldisilazane (HMDS) as silylating agent at room temperature. Alcohols, phenols and acids are silylated to their respective silyl derivatives with faster reaction rate while amines and thiols required relatively longer reaction time. Moreover, the solid catalyst is easily be separated from the reaction mixture and recycled more than five times without any obvious decay in its activity. Powder X-ray diffraction (XRD), transmission electron microscope (TEM), UV–vis diffuse reflectance spectra (UV-DRS) and Raman analyses revealed identical structural integrity, particle size, absorption edge and valence state for the reused solid compared to the fresh solid catalyst.
Cyclodextrins in polymer chemistry: Enzymatically catalyzed oxidative polymerization of para-functionalized phenol derivatives in aqueous medium by use of horseradish peroxidase
Pang, Yanjie,Ritter, Helmut,Tabatabai, Monir
, p. 7090 - 7093 (2007/10/03)
Ethyl 1-[(4-hydroxyphenyl)aminocarbonyl)]-2-vinylcyclopropane carboxylate has been oligomerized using horseradish peroxidase as catalyst. The oligomerization was achieved in the presence of cyclodextrine at room temperature in phosphate buffer (pH 7). The
A study of ortho- and para-siloxyanilines for the synthesis of mono-, bi-, and tetra-nuclear early transition metal-imido complexes
Benito,Arévalo, Silvia,De Jesús,De La Mata,Flores,Gómez
, p. 42 - 48 (2007/10/03)
The siloxyanilines o-Me3SiOC6H4NH2 (1) and p-RMe2SiOC6H4NH2 (R = H (2); R = Me (3)), and their N-silylated derivatives p-Me3SiOC6H4NHS
Synthesis of Hydroxy-Substituted 4-Phenyl-1,2,4-triazoline-3,5-diones
Burgert, Josef,Stadler, Reimund
, p. 691 - 694 (2007/10/02)
Starting from 4-aminophenol, 4-(4-hydroxyphenyl)-1,2,4-triazoline-3,5-dione (4) and 4-(4-hydroxy-3-nitrophenyl)-1,2,4-triazoline-3,5-dione (11) are synthesized.Contrary to the base-catalyzed formation of the unsubstiuted phenyl derivative 1, the heterocycle 9 is formed by heating of 1-(ethoxycarbonyl)-4-semicarbazide (8).By treatment of 4-(4-hydroxyphenyl)urazole (9) with NO2 nitration of the aromatic ring and oxidation occur simultaneously with formation of 11.Oxidation by tert-butyl hypochlorite gives 4.First investigations on polybutadienes modified with 1, 4, 11 show the influence of the additional hydroxy group to the mechanical properties.
