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(25) An unknown compound, C8H10O2, has an IR absorption at 1750cm1 and the 13CNMR absorption peaks as following. 13C(CDCl3,100MHzNMR):219.5(C),43.7(CH2),36.2 (CH). Please prose a structure for

(25) An unknown compound, C8H10O2, has an IR absorption at 1750cm1 and the 13CNMR absorption peaks as following. 13C(CDCl3,100MHzNMR):219.5(C),43.7(CH2),36.2 (CH). Please prose a structure for the compound

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