2,2-二甲氧基丙烷 、
3-Hydroxy-2-(hydroxy-phenyl-methyl)-1-phenyl-butan-1-one 在
camphor-10-sulfonic acid 作用下,
以
二氯甲烷 为溶剂,
生成 phenyl[(4RS,5SR,6RS)-2,2,4-trimethyl-6-phenyl-1,3-dioxan-5-yl]methanone 、 phenyl[(4RS,5RS,6SR)-2,2,4-trimethyl-6-phenyl-1,3-dioxan-5-yl]methanone