25432-40-0Relevant academic research and scientific papers
A Simple and Versatile Synthesis of Trimethylsiloxy-Substituted Isocyanates
Mormann, Werner,Leukel, Gabriele
, p. 990 - 992 (1988)
A versatile and efficient method for the synthesis of trimethylsiloxy-substituted isocyanates without the use of carbonyl chloride consists of the reaction of the O-trimethylsilyl derivatives of aminoalcohols, aminophenols, 4-aminobenzoic acid, and hydrox
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.
Process for the preparation of isocyanates and their use for the preparation of polyisocyanates containing ester
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, (2008/06/13)
This invention relates to a novel process for the preparation of isocyanates containing silylated alcoholic or phenolic hydroxyl groups as substituents and to the use of the compounds obtained by this process as reactants for isocyanatocarboxylic acid halides in the preparation of polyisocyanates containing ester groups.
