(2R*,4R*)-2-isopropyl-4-methyl-4,5-dihydro-1,3-dioxepin 、
原甲酸三甲酯 在
三氟化硼乙醚 作用下,
生成 (2S
*,3R
*,5R
*)-2-isopropyl-5-methyltetrahydrofuran-3-carbaldehyde dimethyl acetal 、 (2S
*,3R
*,5S
*)-2-isopropyl-5-methyltetrahydrofuran-3-carbaldehyde dimethyl acetal 、
(2S*,3S*,5S*)-2-isopropyl-5-methyltetrahydrofuran-3-carbaldehyde dimethyl acetal 、
(2S*,3S*,5R*)-2-isopropyl-5-methyltetrahydrofuran-3-carbaldehyde dimethyl acetal