JEE Advanced · ChemistryMedium
Which reagent is best suited to convert a carboxylic acid directly into an aldehyde?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: C —
Solution
- Carboxylic acids are typically reduced to primary alcohols by strong reducing agents like .
- Direct reduction of carboxylic acids to aldehydes is difficult due to the high reactivity of the intermediate.
- DIBAL-H (diisobutylaluminium hydride) is a bulky, selective reducing agent.
- DIBAL-H can reduce nitriles or esters to aldehydes at low temperatures.
- Hence the answer is (C).
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Chemistry topics you need to revise.
Attempt & Track Free →More Aldehydes Ketones Carboxylic Acids practice questions
- Which of the following reagents is used to convert an aldehyde into a primary alcohol?
- What is the product formed when acetone reacts with hydroxylamine?
- What is the product of the oxidation of toluene with chromyl chloride followed by hydrolysis?
- Which reagent is used to detect the presence of a carbonyl group?
- Which compound undergoes the Cannizzaro reaction?
- What is the product of the reaction between benzaldehyde and concentrated NaOH?
- What is the major product formed when propanal reacts with dilute NaOH?
- Which compound is most reactive towards nucleophilic addition?
- Which of the following compounds will give a positive iodoform test?
- What is the major product of the reaction of propanone with iodine in the presence of aqueous sodium hydroxide?
- Predict the major product of the reaction between benzaldehyde and acetophenone in the presence of dilute NaOH.
- Identify the product formed when 4-oxopentanoic acid is treated with excess sodium borohydride.