(-)-2-((2S,3S)-2-(benzyloxy)hex-5-en-3-yloxy)acetic acid 在
[1,2-bis-(phenylsulfinyl)ethane]palladium(II) acetate 、 (1R,2R)-(-)-[1,2-cyclohexanediamine-N,N'-bis(3,5-di-tert-butylsalicylidine)] chromium(III) chloride 、
对苯醌 作用下,
以
1,4-二氧六环 为溶剂,
反应 72.0h,
生成
syn,syn-(+)-(5R,6S)-5-((S)-1-(benzyloxy)ethyl)-6-vinyl-1,4-dioxan-2-one 、
syn,anti-(-)-(5R,6R)-5-((S)-1-(benzyloxy)ethyl)-6-vinyl-1,4-dioxan-2-one