1979
DOI: 10.1002/cber.19791120310
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Totalsynthese von Papaverrubin E

Abstract: Das totalsynthetisch zugangliche Phthalidisochinolinalkaloid ( -)-Bicucullin (1 a) wird in das Racemat des Benzazepinalkaloids Papaverrubin E ())-(6a) sowie in sein naturliches ( +)-bzw. unnatiirliches ( -)-Enantiomeres ubergefiihrt.

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Cited by 6 publications
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“…The transformation was complicated by the competitive reduction of the ethyl ester, affording a mixture of aldehyde 34a and alcohol 34b . Thus, a survey was undertaken with reagents capable of effecting the lactone-to-lactol conversion: sodium bis(2-methoxyethoxy)aluminum hydride (Red-Al), Red-Al·EtOH, Red-Al·amine, and lithium tris( tert -butoxy)aluminum hydride (LiAlH(O t -Bu) 3 ) …”
Section: Resultsmentioning
confidence: 99%
“…The transformation was complicated by the competitive reduction of the ethyl ester, affording a mixture of aldehyde 34a and alcohol 34b . Thus, a survey was undertaken with reagents capable of effecting the lactone-to-lactol conversion: sodium bis(2-methoxyethoxy)aluminum hydride (Red-Al), Red-Al·EtOH, Red-Al·amine, and lithium tris( tert -butoxy)aluminum hydride (LiAlH(O t -Bu) 3 ) …”
Section: Resultsmentioning
confidence: 99%