ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Enantioselective Synthesis of Natural (+)-Dactyloxene-B and -C by Actuation of Oxonium Ion-Initiated Pinacol Rearrangement.-The title sesquiterpene ethers are prepared via acid-induced ring expansion of the coupling product derived from the metallated dihydrofuran (R)-(III) and the dimethylcyclopentanone (-)-(IV), yielding the diastereomeric spiro-fused cyclohexanones (V)-(VIII). Products (V) and (VI) are converted to the corresponding enol triflates and then methylated with lithiodimethylcuprate to give the target natural products (XII) and (XIII). -(PAQUETTE, L. A.; LORD, M. D.; NEGRI, J. T.; Tetrahedron Lett. 34 (1993) 36, 5693-5696; Evans Chem. Lab., Ohio State Univ., Columbus, OH 43210, USA; EN)
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