Related Experiment Video
Updated: May 21, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
A new benzofuran derivative from Flemingia philippinensis Merr. et Rolfe
Hua Li1, Fengyan Zhai, Meihua Yang
1Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China.
Abstract:
A new prenylated benzofuran derivative, named flemiphilippinone A, was isolated together with ten known flavonoids from the roots of Flemingia philippinensis. Flemiphilippinone A was identified as (2S,3aS)-5-(1-hydroxy-3-(4-methoxyphenyl)-propylidene)-2-(2-hydroxypropan-2-yl)-3a,7-bis(3-methylbut-2-en-1-yl)tetrahydrobenzofuran-4,6(2H,5H)-dione, and its structure was established by a combination of HR EIMS, ¹H-NMR, ¹³C-NMR, HMQC, HMBC and NOESY spectra data.
Related Concept Videos
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Anthelminthic Agents
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
Aromatic Compounds: Overview
In 1825, Faraday isolated benzene...
