(1R,2R,3E,7E,11E)-cembra-3,7,11,15-tetren-17,2-olide 在
sodium carbonate 、
间氯过氧苯甲酸 作用下,
以
氯仿 为溶剂,
生成 (2E,11E)-(1R,6R,8S,15R)-3,8,12-Trimethyl-16-methylene-7,18-dioxa-tricyclo[13.3.0.0
6,8]octadeca-2,11-dien-17-one 、 (2E,11E)-(1R,6S,8R,15R)-3,8,12-Trimethyl-16-methylene-7,18-dioxa-tricyclo[13.3.0.0
6,8]octadeca-2,11-dien-17-one 、 (9E,13E)-(1R,4S,6S,15R)-4,9,13-Trimethyl-18-methylene-5,16-dioxa-tricyclo[13.3.0.0
4,6]octadeca-9,13-dien-17-one 、 (9E,13E)-(1R,4R,6R,15R)-4,9,13-Trimethyl-18-methylene-5,16-dioxa-tricyclo[13.3.0.0
4,6]octadeca-9,13-dien-17-one