(+-)-cis-3,3a,4,6a-tetrahydro-cyclopenta[b]furan-2-one 、
二苯基膦酸锂 在
bis(acetylacetonato)palladium(II) 作用下,
以
四氢呋喃 为溶剂,
生成 [(1S,4S)-4-(Diphenyl-phosphinoyl)-cyclopent-2-enyl]-acetic acid 、 [(1R,4S)-4-(Diphenyl-phosphinoyl)-cyclopent-2-enyl]-acetic acid 、
[2-(diphenylphosphanoyl)cyclopent-2-enyl]acetic acid