Journal of Organic Chemistry p. 2994 - 2996 (1984)
Update date:2022-07-31
Topics:
Delgado, Guillermo
Hernandez, Hilda
Vivar, Alfonso Romo de
The structure and stereochemistry of the new C14α,H5β elemanolide, elemanschkuhriolide (8) from Schkuhria schkuhrioides is reported.Schkuhriolide (2), isolated from the same plant source, was transformed into 8 via a Cope rearrangement and this is the first <3,3> sigmatropic reaction of a melampolide with a lactone ring closed at C(8) and cis annelated.The biogenesis of C14α,H5β elemanolides from melampolides is discussed.
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(1984)