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CBSE Class 12 · 2006 · Delhi Compartment · Alcohols Phenols and EthersShort Answer

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How are the following conversions carried out?
a) benzyl chloride to benzyl alcohol
b) ethyl magnesium bromide to propan-1-ol

Answer: (a) Boil with aqueous NaOH: C₆H₅CH₂Cl → C₆H₅CH₂OH. (b) C₂H₅MgBr + HCHO (methanal), then hydrolyse → CH₃CH₂CH₂OH.

Solution

(a)

(b) Grignard on methanal lengthens the chain by one –CHOH:

CBSE Class 12 Board · 2006 · Delhi Compartment · Subjective

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