反-1-甲氧基-3-(三甲基硅氧基)-1,3-丁二烯 、
4,5-dioxo-3-methyl-5-(5-oxo-2,6,6-trimethylcyclohex-1-enyl)-(E)-pent-2-enal 在
盐酸 作用下,
生成 (E)-3-Methyl-4-(4-oxo-3,4-dihydro-2H-pyran-2-yl)-1-(2,6,6-trimethyl-5-oxo-cyclohex-1-enyl)-but-3-ene-1,2-dione 、 (1R,2R)-2-Methyl-5-oxo-2-[2-oxo-2-(2,6,6-trimethyl-5-oxo-cyclohex-1-enyl)-acetyl]-cyclohex-3-enecarbaldehyde