呋喃 、
3,3-Dimethyl-6-oxo-cyclohex-1-enecarboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
生成 (S)-6-Furan-2-yl-2-hydroxy-5,5-dimethyl-cyclohex-1-enecarboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester 、 (R)-6-Furan-2-yl-2-hydroxy-5,5-dimethyl-cyclohex-1-enecarboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester