对羟基苯甲醛 、
4-[2,6,6-trimethyl-cyclohex-1-en-1-yl]-2-methyl-but-2-en-1-ol 、
三苯基膦 、
偶氮二甲酸二乙酯 以to provide 4-((2E)-2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-butenyloxy)benzaldehyde (15.9 g, 50%) as a colorless oil after chromatography的产率得到4-((2E)-2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-butenyloxy)benzaldehyde