@article{ffc1a54dcc5f4abd995525a2fccd5a47,
title = "Synthesis of bioactive sesquiterpene heliannuol E involving a ring-expansion reaction of spirodienones",
abstract = "A heliannane-type sesquiterpene, heliannuol E (1), has been successfully synthesized. The key step was conversion of the electrochemically produced spiro compounds (8, and 18) into the corresponding dihydrobenzopyrans (11, 12, 19, and 20) by a selective ring expansion process.",
keywords = "Anodic oxidation, Dihydrobenzopyran, Heliannuol E, Sesquiterpene, Two-electron oxidation",
author = "Fuminao Doi and Takahisa Ogamino and Takeshi Sugai and Shigeru Nishiyama",
year = "2003",
doi = "10.1055/s-2003-37124",
language = "English",
pages = "411--413",
journal = "Synlett",
issn = "0936-5214",
publisher = "Georg Thieme Verlag",
number = "3",
}