ChemInform Abstract: KONFORMATIONSISOMERIE BEI DIHYDROPREGEIJEREN UND HEDYCARYOL

Wharton, P. S.; Poon, Yam-Foo; Kluender, Harold C.

doi:10.1002/chin.197322445

Chemischer Informationsdienst

1973

DOI: 10.1002/chin.197322445

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ChemInform Abstract: KONFORMATIONSISOMERIE BEI DIHYDROPREGEIJEREN UND HEDYCARYOL

P. S. Wharton¹,

Yam-Foo Poon²,

Harold C. Kluender³

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1983

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“…Two other natural compounds, related to tanacetols, with a l'-hydroxyisopropyl chain at C(7) are known: hedycaryol (Wharton, Yui-Cheong Poon & Kluender, 1973) and the C(ll) prenilogue of 6fl-hydroxyhedycaryol (hydroxydiplophol, Sun & Fenical, 1979). Three conformations have been proposed for the former compound studied only in solution whilst hydroxydiplophol, according to the stereochemistry of its cyclization products, should assume the conformation [15D 5,IDl4] [after the notations of Samek & Harmatha (1978)].…”

mentioning

confidence: 99%

The structure of tanacetols A, C17H26O4, and B, C19H30O5, two new sesquiterpene alcohols from Tanacetum vulgare L.

Calleri¹,

Chiari²,

Viterbo³

1983

Acta Crystallogr C

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, Dx= 1.14 Mg m -3, F(000) = 736, g(Mo K~t) = 0.09 mm -~, room temperature. The structures were solved by direct methods and refined to R = 0.041 for tanacetol A and to R = 0.046 for tanacetol B acetate using, respectively, 1088 and 1594 unique reflexions. Both ten-membered rings show a C(1)-C(10) trans double bond and present the energetically less favoured boat-chair conformation. The C(14) methyl and the C(15) methene are syn and on the a face of the rings; the oxygen of the keto group in tanacetol A is on the fl face whereas the C(5) acetyl group in tanacetol B acetate is on the a face.

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mentioning

confidence: 99%

The structure of tanacetols A, C17H26O4, and B, C19H30O5, two new sesquiterpene alcohols from Tanacetum vulgare L.

Calleri¹,

Chiari²,

Viterbo³

1983

Acta Crystallogr C

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ChemInform Abstract: KONFORMATIONSISOMERIE BEI DIHYDROPREGEIJEREN UND HEDYCARYOL

Cited by 1 publication

References 1 publication

The structure of tanacetols A, C17H26O4, and B, C19H30O5, two new sesquiterpene alcohols from Tanacetum vulgare L.

The structure of tanacetols A, C17H26O4, and B, C19H30O5, two new sesquiterpene alcohols from Tanacetum vulgare L.

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