Preparation of partially fluorinated dioxolane, dioxole manufacturing method, and, manufacture of

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PROBLEM TO BE SOLVED : To provide a method for inexpensively producing a partially fluorinated dioxolane used as a raw material for producing a dioxole and to provide a method for producing a dioxole and an electrolyte using the same.SOLUTION : There is provided a method for producing a partially fluorinated dioxolane (formula (2)) by reacting a partially fluorinated ester (formula (1) and an Ranion. [where, Xis Cl or the like; Rand Rare an alkyl group having 1 or more and 10 or less carbon atoms, a partially fluorinated alkyl group or the like; at least one of Rand Ris a partially fluorinated alkyl group or the like; and n is an integer of 1 or more and 5 or less.]