6,6-dimethyl-5-hydroxy-4-phenyl-2-heptanone 、
烯丙基三甲基硅烷 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
生成 (2S,4R,5R)-2-Allyl-5-tert-butyl-2-methyl-4-phenyl-tetrahydro-furan 、 (2R,4R,5R)-2-Allyl-5-tert-butyl-2-methyl-4-phenyl-tetrahydro-furan 、 (2R,4S,5R)-2-Allyl-5-tert-butyl-2-methyl-4-phenyl-tetrahydro-furan