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Synthesis of O-methyl epi-heliannuol E

โœ Scribed by Subir Kumar Sabui; Ramanathapuram V Venkateswaran


Book ID
108282365
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
202 KB
Volume
59
Category
Article
ISSN
0040-4020

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Heliannuol E 1, isolated from Helianthus annuus L. cv. SH-222, was successfully synthesized in both optically active forms, by novel ring-expansion reaction of the corresponding spirodienone derivatives 8 and 17, which were produced from 7 and 16 under anodic oxidation conditions. The absolute struc