(R)-hex-5-en-2-yl 3-[(4R,5S)-5-allyl-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxypropanoate 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以72%的产率得到(3aR,8R,13aS,Z)-4-hydroxy-2,2,8-trimethyl-4,5,9,10,13,13a-hexahydro-3aH-[1,3]dioxolo[4,5-e][1]oxacyclododecin-6(8H)-one