3-Acetoxy-4-(tert-butyl-diphenyl-silanyloxy)-2,3,5-trimethyl-6-oxo-cyclohexa-1,4-dienecarboxylic acid 2-trimethylsilanyl-ethyl ester 在
lithium hydroxide 、
12-冠醚-4 作用下,
以
四氢呋喃 为溶剂,
反应 15.0h,
以70%的产率得到3,4-Dihydroxy-2,3,5-trimethyl-6-oxo-cyclohexa-1,4-dienecarboxylic acid 2-trimethylsilanyl-ethyl ester