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1 article(s) from Ladwig, Angelique

Identification and determination of the absolute configuration of amorph-4-en-10β-ol, a cadinol-type sesquiterpene from the scent glands of the African reed frog Hyperolius cinnamomeoventris

Angelique Ladwig,
Markus Kroll and
Stefan Schulz

Beilstein J. Org. Chem. 2023, 19, 167–175, doi:10.3762/bjoc.19.16

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Figure 1: Calling male Hyperolius cinnamomeoventris with exposed vocal sac carrying the yellow gular gland. Figure 1 ...

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Figure 2: Macrolides identified in gular glands of male Hyperolius cinnamomeoventris.

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Figure 3: Total ion chromatogram (TIC) of a gular gland extract of Hyperolius cinnamomeoventris on a polar DB...

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Figure 4: Mass spectrum of sesquiterpene A (I = 1596) from the gular gland extract of male Hyperolius cinnamo...

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Scheme 1: Racemic synthesis of cadinols modified from Taber and Gunn [13]. Conditions a) i) K₂CO₃ (0.35 equiv), 0...

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Scheme 2: Enantioselective synthesis with (S)-Jørgensen’s organocatalyst S-16. Conditions: a) S-16 (5 mol %),...

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Figure 5: TIC and gas chromatographic Kovats retention indices RI [24] values determined on a Hydrodex β-6TBDM ph...

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Figure 6: Coinjection of R-14 and S-14 with a gular gland extract of Hyperolius cinnamomeoventris performed w...

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Figure 7: Mass spectra of each cadinol-type diastereomer. The box colors refer to the peaks and compounds in Figure 5....

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Published 16 Feb 2023

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