Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH3CO)2O. Commonly abbreviated Ac2O, it is the simplest isolable anhydride of a carboxylic acid and is widely used ...

However, these methods have the problem of low yield and the necessity of esterification, hydrolysis and dehydration with acetic anhydride before and after the reacting process. As the most ...

In a 1958 patent to Celanese (New York City), inventor Arthur W. Schnizer reported the reaction of acetaldehyde and acetic anhydride with a benzenesulfonic acid catalyst to produce vinyl acetate with ...

Officers intercepted four vehicles, including a container truck from Uttar Pradesh. In all, 49kg of heroin and 387kg of acetic anhydride, a chemical reagent, estimated to be worth around ₹100 crore,we ...