[(4S,5R)-5-acetyloxy-10-hydroxy-1,6-dioxodec-2-yn-4-yl] acetate 在
potassium carbonate 作用下,
以
甲苯 为溶剂,
反应 0.17h,
生成 Acetic acid (3R,4S,5R)-3-acetoxy-2-[2-oxo-eth-(Z)-ylidene]-1,6-dioxa-spiro[4.5]dec-4-yl ester 、 Acetic acid (3R,4S,5R)-3-acetoxy-2-[2-oxo-eth-(E)-ylidene]-1,6-dioxa-spiro[4.5]dec-4-yl ester 、 Acetic acid (3R,4R,5S)-3-acetoxy-2-[2-oxo-eth-(Z)-ylidene]-1,6-dioxa-spiro[4.5]dec-4-yl ester 、 (2E,3R,4R,5S)-3,4-diacetoxy-2-formylmethylene-1,6-dioxaspiro<4.5>decane