Please predict the products for each of the following reactions: A B C D Please predict the products for each of the following reactions: A B C D NO REACTION
Answer
Predicted Products of Benzyl Alcohol Reactions
Reaction with SOCl₂ and Pyridine
Reagents Used: Thionyl chloride (SOCl₂) and pyridine
When benzyl alcohol (C₆H₅CH₂OH) reacts with SOCl₂ in the presence of pyridine, it undergoes a substitution reaction where the –OH group is replaced by a –Cl group. This forms benzyl chloride (C₆H₅CH₂Cl).
The mechanism follows an SNi (nucleophilic substitution internal) pathway and retains configuration at the reacting carbon.
Final Product: Benzyl Chloride
Reaction with PCC (Pyridinium Chlorochromate)
Reagent Used: PCC – a mild oxidizing agent
PCC selectively oxidizes primary alcohols to aldehydes without further oxidation to carboxylic acids. When benzyl alcohol is treated with PCC, it is converted into benzaldehyde (C₆H₅CHO).
Final Product: Benzaldehyde
Summary of Products
- SOCl₂ / Pyridine → Benzyl Chloride (C₆H₅CH₂Cl)
- PCC → Benzaldehyde (C₆H₅CHO)