What is the primary organic product formed when an oxirane (ethylene oxide) undergoes nucleophilic attack by a Grignard reagent (), followed by acidic hydrolysis?

Question

What is the primary organic product formed when an oxirane (ethylene oxide) undergoes nucleophilic attack by a Grignard reagent ($R-MgX$), followed by acidic hydrolysis?

Prashant Kotian · Accepted Answer

Correct answer: B. The Grignard reagent ( nucleophile) attacks the less sterically hindered carbon of the highly strained oxirane ring, breaking the bond. Following hydrolysis, this process extends the carbon chain by exactly two carbons, yielding a primary alcohol ().

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