Ethyl 4-(diethoxyphosphoryl)-3-methylcrotonate, techDiethyl [3-(ethoxycarbonyl)-2-methylprop-2-en-1-yl]phosphonateEthyl 4-(diethoxyphosphoryl)-3-methylbut-2-enoate3-甲基-4-膦酰基-2-丁烯酸三乙酯,顺式和反式混合物Triethyl 3-methyl-4-phosphonocrotonateDiethyl 3-ethoxycarbonyl-2-methyl-2-propenyl phosphonate4-膦酰基千里酸三乙酯,顺式和反式混合物Triethyl 3-methyl-4-phosphono-2-butenoate, mixture of cis and transTriethyl 4-phosphonosenecioate, mixture of cis and transTriethyl 3-methyl-4-phosphono-2-butenoateTriethyl (2E)-3-Methyl-4-phosphonocrotonate4-膦酰基千里酸三乙酯3-甲基-4-膦酰基-2-丁烯酸三乙酯Diethyl [(E)-3-(Ethoxycarbonyl)-2-methylallyl]phosphonate(2E)-4-(Diethoxyphosphinyl)-3-methyl-2-butenoic Acid Ethyl EsterTriethyl (2E)-3-Methyl-4-phosphono-2-butenoateTriethyl 4-phosphonosenecioate