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Updated: Aug 16, 2026
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
[A new benzophenone from the root of Securidaca inappendiculata]
Li-Jie Zhang1, Lin Zhang, Li-Zhen Xu
1Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China.
Aim:
To study the benzophenones in the roots of Securidaca inappendiculata Hassk.
Methods:
Column chromatography (including silica gel and Sephadex LH-20) was used to isolate benzophenones whose structures were elucidated by HREI-MS, NMR (1D and 2D) methods.
Results:
A new benzophenone was isolated and identified as 2-methoxy-3,4-methylenedioxy-benzophenone (I), along with a known compound 4-hydroxy-2,6-dimethoxy-benzophenone (II).
Conclusion:
Compound I is a new one named as securiphenone B, compound II was isolated from the genus for the first time.
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