Converting one organic compound into another is a staple of Class 12 Organic Chemistry (Aldehydes, Ketones, and Carboxylic Acids). Converting a carboxylic acid (Benzoic Acid) into an aldehyde (Benzaldehyde) cannot be done directly in one step. It requires a two-step process.
Thionyl chloride (SOCl₂) is preferred in Step 1 because the byproducts (SO₂ and HCl) are gases and escape, leaving pure benzoyl chloride.
Without Barium sulfate poisoning the Palladium catalyst, the Benzaldehyde would reduce completely into Benzyl alcohol.
Benzaldehyde is known for its distinct almond-like smell.
First, we must convert the benzoic acid into a more reactive acid chloride.
Now, we reduce the Benzoyl chloride into Benzaldehyde using a specific controlled reaction called the Rosenmund Reduction.
No. If you use a strong reducing agent like Lithium Aluminum Hydride (LiAlH4), the benzoic acid will be reduced completely past the aldehyde stage directly into Benzyl alcohol.
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