Syntheses of endo or exo-5,5-Disubstituted-3-Oxo- 4-Oxatricyclo[5,2,1,02,6]8-Decenes
Wang Xiaolan, Tang Shixiong, Jiang Lasheng, Wang Changfeng, Cao Yurong
Chem. J. Chinese Universities . 1989, (5): 540 -542 .