(3S,4R)-3-[(1R)-1-(pent-4-enoyloxy)ethyl]-1-(pent-4-enyl)-4-propyl-2-azetidinone 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 C
4H
10*C
9H
22O
4Ti 作用下,
以
甲苯 为溶剂,
反应 24.0h,
生成 (5Z,11R,12S,14R)-11-methyl-9,13-dioxo-14-propyl-10-oxa-1-azabicyclo[10.1.1]tetradec-5-ene 、
(5E,11R,12S,14R)-11-methyl-9,13-dioxo-14-propyl-10-oxa-1-azabicyclo[10.1.1]tetradec-5-ene