I'm doing the same problem..are u in my chm206 lab? lol anyway..maleic anhydride reacts with water from the toluene to form maleic acid.
A reaction between an alcohol and an anhydrid is usually exothermic, so I would say it is.
Because Salicylic Acid reacts with Acetic Anhydride in the presence of H2SO4 and CH3COOH to give Aspirin. The sulphuric acid does not react. If you measure the volume/weight of the acid before the reaction and after the reaction, there will be no change. Note:-You can also use Acetyl Chloride in the presence of phosphoric acid instead on Acetic Anhydride.
http://www.cerlabs.com/experiments/1053497774X.pdf follow this link to a pdf file this gives the whole information of synthesis of paracetamol from 4-aminophenol and acetic anhydride.
no. the answer why is listed in the text book macroscale and microscale organic experiments by williamson. I remember reading the reason there i just dont remember why. Yes, the answer why the reaction didn't work is in the reading of the text. I just finished this lab this week. The question is IF the reaction had worked, would cantharidin been formed. To answer this, I would draw out the mechanism of this reaction (remember this is all hypothetical) and remember that the exo/endo orientation is important in determining this answer!
Combustion is a chemical reaction between oxygen and other substances that creates heat and sometimes light. Incineration is the process of burning something completely and usually involves combustion.
The product of the reaction between anthracene and maleic anhydride is known as anthracene-maleic anhydride adduct. This adduct is commonly used in the synthesis of dyes, polymers, and other organic compounds.
A reaction between an alcohol and an anhydrid is usually exothermic, so I would say it is.
acetic anhydride and sodium chloride will form.
Zinc chloride and an acid must be present, preferably HCl
Because Salicylic Acid reacts with Acetic Anhydride in the presence of H2SO4 and CH3COOH to give Aspirin. The sulphuric acid does not react. If you measure the volume/weight of the acid before the reaction and after the reaction, there will be no change. Note:-You can also use Acetyl Chloride in the presence of phosphoric acid instead on Acetic Anhydride.
Aspirin is formed in a reaction between salicylic acid and acetic anhydride. In this reaction it is the phenolic alcohol group that reacts to form the aspirin.
http://www.cerlabs.com/experiments/1053497774X.pdf follow this link to a pdf file this gives the whole information of synthesis of paracetamol from 4-aminophenol and acetic anhydride.
Aspirin is generally produced by the following mechanism (starting from basic materials) Phenol --(NaOH, CO2, heat)--> Sodium Salicylate (+para isomer) --(H2SO4)--> Salicylic acid --(acetic anhydride)--> acetylsalicylic acid (Aspirin) Due to the myriad of organic reactions, there are multiple possibilities at each stage. However, the above is the most efficient and common way of synthesizing Aspirin. For example, the last reaction (esterification) may be accomplished by using an acyl halide instead of an anhydride (e.g. ethanoyl/acetic chloride instead of acetic anhydride). However, the acyl halide is more costly to synthesize and more unstable to handle.
The reaction between a carboxlic acid and an alcohol is named as esterfication. Ester is formed during this reaction.
no. the answer why is listed in the text book macroscale and microscale organic experiments by williamson. I remember reading the reason there i just dont remember why. Yes, the answer why the reaction didn't work is in the reading of the text. I just finished this lab this week. The question is IF the reaction had worked, would cantharidin been formed. To answer this, I would draw out the mechanism of this reaction (remember this is all hypothetical) and remember that the exo/endo orientation is important in determining this answer!
Combustion is a chemical reaction between oxygen and other substances that creates heat and sometimes light. Incineration is the process of burning something completely and usually involves combustion.
Up to a point, temperature will increase the rate of reaction between hypo and dilute hydrochloric acid. After a certain point, extreme temperature will completely shut down the process.