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ZnAl2O4@SiO2 nanocomposite catalyst for the acetylation of alcohols, phenols and amines with acetic anhydride under solvent-free conditions
Spinel-type oxide Zinc aluminate Silica Sol-gel process Nanocomposite Heterogeneous catalyst Acetylation Solvent-free condition
2014/3/8
A ZnAl2O4@SiO2 nanocomposite was prepared from metal nitrates and tetraethyl orthosilicate by the sol-gel process, and characterized by X-ray diffraction, Fourier transform infrared, transmission elec...
Tribromo melamine as novel and versatile catalyst for the formylation and acetylation of alcohols
Tribromo melamine Acetylation Formylation Alcohol Ethyl formate Acetic anhydride
2014/3/11
Tribromo melamine has been found to be an efficient and green organocatalyst for the acetylation and formylation reactions of alcohols with acetic anhydride and ethyl formate at room temperature and u...
In situ generated acylimidazolium acetate as an efficient catalyst and acylating agent for the acetylation of alcohols, phenols, and amines at ambient temperature（图）
Acetylation Acylimidazolium acetate Imidazole Ionic liquid
2013/9/25
Acylimidazolium acetate was readily prepared in situ from the reaction of imidazole with acetic anhydride and subsequently acted as a catalyst and acylating agent for the efficient acetylation of alco...
A succinimide-N-sulfonic acid catalyst for acetylation reactions in absence of a solvent（图）
Succinimde-N-sulfonic acid Protection Acetylation Chemoselective reaction Solvent-free condition
2013/9/27
A small amount of succinimide-N-sulfonic acid efficiently catalyzed the acetylation of a variety alcohols, phenols, thiols, amines and aldehydes with acetic anhydride at room temperature under solvent...
Polyvinylpolypyrrolidoniume Tribromide as an Efficient Catalyst for the Acetylation of Alcohols and Phenols（图）
alcohol phenol polyvinylpolypyrrolidoniume tribromide acetylation acetic anhydride
2013/10/4
An efficient and versatile procedure for the acetylation of alcohols and phenols using acetic anhydride in the presence of a catalytic amount of polyvinylpolypyrrolidoniume tribromide has been success...