Question: The use of epoxides as alkylating agents for diethyl malonate provides a useful route to - lactones. Write equations illustrating such a sequence for styrene

The use of epoxides as alkylating agents for diethyl malonate provides a useful route to - lactones. Write equations illustrating such a sequence for styrene oxide as the starting epoxide. Is the lactone formed by this reaction 3-phenylbutanolide, or is it 4-phenylbutanolide?

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