3-[(1S,5E,7E)-1-(dimethylisopropyl)silyloxy-8-(1,3-dithiolan-2-yl)-4,4-dimethyl-5,7-octadienyl]-2-buten-4-olide 在
2,6-二叔丁基-4-甲基苯酚 作用下,
以
甲苯 为溶剂,
反应 70.0h,
生成 (1R,2S,6R,9R,10R)-2-(dimethylisopropyl)silyloxy-5,5-dimethyl-9-(1,3-dithiolan-2-yl)-12-oxatricyclo[8.3.0.0
1,6]tridec-7-en-11-one 、
(1S,2S,6S,9S,10S)-2-(dimethylisopropyl)silyloxy-5,5-dimethyl-9-(1,3-dithiolan-2-yl)-12-oxatricyclo[8.3.0.01,6]tridec-7-en-11-one