1-(3,4-dihydro-2H-pyran-6-yl)-2-[(3,4-dimethoxyphenyl)methyl]prop-2-en-1-one 在
C
49H
37F
3NO
5PS 作用下,
以
氯仿 为溶剂,
生成 (R)-6-(3,4-dimethoxybenzyl)-3,4,5,6-tetrahydrocyclopenta[b]pyran-7(2H)-one 、
(S)-6-(3,4-dimethoxybenzyl)-3,4,5,6-tetrahydrocyclopenta[b]pyran-7(2H)-one