Disclosed herein is a novel propenyl ether compound which can be cured by radical polymerization. The invention provides a propenyl ether compound represented by the formula: CH3—CH═CH—(OR1)n—OCO—X—COO—(R2O)n—CH═CH—CH3  (1) wherein X represents —CH═CH— or —CH2—C(═CH2)—, each of R1 and R2 represents an alkylene group having 2 to 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms, and n is an integer of 1 to 5, and an allyl ether compound represented by the formula: CH2═CH—CH2—(OR6)n—OCO—X—COO—(R7O)n—CH2—CH═CH2  (2)  wherein X represents —CH═CH— or —CH2—C(═CH2)—, each of R6 and R7 independently represents an alkylene group having 2 to 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms, and n is an integer of 1 to 5, provided that, when n=1, each of R6 and R7 represents an alkylene group having 3 or 4 carbon atoms or a cycloalkylene group having 5 to 12 carbon atoms. The above compounds can be obtained by the reaction between fumaric acid, maleic acid, itaconic acid, a derivative thereof or the like and a polyalkylene glycol monopropenyl ether, a polyalkylene glycol monoallyl ether or the like. Further, the compound of the formula (1) can be obtained by isomerizing the allyl ether compound.