香草醇(2,6-二甲基辛烯-2-醇-8)分子中的双键加上一分子水,即成为羟基香草醇。再催化脱氢,可进一步得到羟基香草醛。羟基香草醛是具有玲兰花香气的香料,是香料工业中的一种传统产品。其传统工艺路线为:先用亚硫酸氢钠保护香草醛的醛基,再 Vanillin alcohol (2,6-dimethyl-octen-2-ol-8) double the molecule plus a molecule of water, that is hydroxy vanillol. Then catalytic dehydrogenation can be further hydroxy vanillin. Hydroxy vanillin is a perfume with orchid aroma and is a traditional product in the perfumery industry. The traditional process route is as follows: firstly, the aldehyde group of vanillin is protected by sodium bisulfite;