Rhodium Carbenoid MediatedC-H Activation of a Tertiary Methyl Group: An EnantiospecificApproach to the Angular Triquinanes Norsilphiperfolane and Norcameroonanes
摘要:
An enantiospecific synthesis of the angular triquinane system present in the sesquiterpenes cameroonanes and silphiperfolanes has been accomplished, starting from 5-isopropenyl-2-methylcyclopent-1-ene-1-methanol [readily available in three steps from ( R)-limonene] employing an intramolecular rhodium carbenoid insertion into the C-H bond of a tertiary methyl group for the construction of the triquinane system.
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关键词:
angular triquinanes silphiperfolane cameroonane enantiospecific synthesis rhodium carbenoid C-H insertion
DOI:
10.1055/s-0030-1260308
被引量:
年份:
2011
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