2. Sodium Borohydride Reduction of Vanillin a. What is the purpose of adding HCl at the end of reaction? b. How will the vanillyl alcohol be iden
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2. Sodium Borohydride Reduction of Vanillin
a. What is the purpose of adding HCl at the end of reaction?
b. How will the vanillyl alcohol be iden
Step by step
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- Which statement is incorrect? A Grignard reagent is a strong lewis base a. O b. Water and alcohol decompose Grignard reagents Oc. Grignard reagents add to the carbonylic carbon of a ketone or aldehyde Ether and THF are solvents not suited for Grignard reactions. d.Esters and amides are most easily made by nucleophilic acyl substitution reactions on… A. alcohols B. acid chlorides C. acid anhydrides D. carboxylates E. carboxylic acidsWhat is the structural requirement for the iodoform reagent to react witha. an alcohol?b. a carbonyl compound?
- What is the major difference between the base-catalyzed and acid-catalyzed processes for nucleophilic addition of water to aldehydes and ketones? a. The base-catalyzed reaction takes place rapidly because hydroxide ion is a much better nucleophile than neutral water. b. The rate of reaction in base catalyzed process is slower than acid catalyzed process. c. The acid-catalyzed reaction takes place rapidly because the protonated carbonyl compound is a much better electrophile than the neutral compound. d. Only 1 and 3 are correct.What alcohols are obtained from the reduction of the following compounds with sodium borohydride? a. 2-methylpropanal b. cyclohexanone c. 4-tert-butylcyclohexanone d. acetophenone3. Devise a synthesis of each ester from benzene, organic alcohols, and any other needed inorganic reagents. 4. Provide the structures of a. propanoic anhydride b. o-bromobenzoyl chloride NH, Ọ
- Nabumetone is a pain reliever and anti-inflammatory agent sold under the brand name of Relafen. a. Write out a synthesis of nabumetone from ethyl acetoacetate. b. What ketone and alkyl halide are needed to synthesize nabumetone by direct enolate alkylation?Nabumetone is a pain reliever and anti-inflammatory agent sold under the brand name of Relafen.a. Write out a synthesis of nabumetone from ethyl acetoacetate.b. What ketone and alkyl halide are needed to synthesize nabumetone by direct enolate alkylation?a. The nitroprusside test is a test for the detection of methyl ketones. What are the reagents used for the Nitroprusside test? b. Give the color of the positive result? c. Color of the negative result?
- Nabumetone is a pain reliever and anti-inammatory agent sold under the brand name of Relafen.a. Write out a synthesis of nabumetone from ethyl acetoacetate.b. What ketone and alkyl halide are needed to synthesize nabumetone by direct enolate alkylation?Which could explain the stronger acidity of phenols compared to alcohols. Why? a.pi-electron delocalization b.steric effect c.hydrogen bonding d.hyperconjugationWhen performing a Grignard reaction it is also very important that the reaction be free from acetone (a chemical we commonly use to clean the glassware). Why must the glassware be free from acetone? A. Acetone reacts with the diethyl ether causing a side reaction to occur B. Acetone is a nucleophile that will react with the Grignard reagent C. Acetone reacts with the bromobenzene D. Acetone is an electrophile that will react with the Grignard reagent