Q2. Complete the following base hydrolysis reaction of ester. (1) NaOH (2) (H3O*) Q3. Write down the base (KOH) catalyzed ester hydrolysis mechanism of the following reaction. on HO. HO
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- a) Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride b) For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? c) For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?When aspirin is made from acetic acid, the by product is H2O; when acetic anhydride 1Sused, the by-product is acetic acid. When acetyl chloride is used (see above), the by product is HC1. Which route should you use if you were working for Leica, a company that mass produces aspirin on a daily basis? Why?please answer parts a and b of the question with good explanation
- Using the mechanism for the acid-catalyzed hydrolysis of an ester as your guide, write the mechanism— showing all the curved arrows—for the acid-catalyzed reaction of acetic acid and methanol to form methyl acetate. Use HB+ and :B to represent the proton-donating and proton-removing species, respectively.Show the product formed as a result of the reaction between propanoic acid and benzyl alcohol in an acidic environment by writing down the reaction mechanism.1. Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride 2. For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? 3. For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?
- A student decided to run the esterification reaction between p-toluic acid (p-methylbenzoic) and ethanol but found that the stockroom had only just enough ethanol left to react with her carboxylic acid, that is, a stoichiometric amount of alcohol. Furthermore, the only concentrated acid the stockroom had left was hydrochloric acid (a non-dehydrating acid ). What other method (s) could she use to drive the esterification reaction to completion ?Circle and correctly identify chemical groups (e.g., aldehydes, ketones, etc.) or chemical features (i.e., double, or triple bonds) in Masoprocola. A student did not obtain any ester when he added 2,4,6-trimethylbenzoic acid to an acidic solution of ethanol. Why? (Hint: Build models.)b. Would he have encountered the same problem if he had tried to synthesize the methyl ester of 4-methylbenzoic acid in the same way?