2(5H)-呋喃酮 、
(1S,4R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carbothioic S-acid 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 120.0h,
生成
(4S)-{[(1S,4R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]hept-1-yl]carbonylthio}-4,5-dihydro-2(3H)-furanone 、 (4R)-{[(1S,4R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]hept-1-yl]carbonylthio}-4,5-dihydro-2(3H)-furanone