Constituents of Geranium thunbergii Sieb, et Zucc. Part 12. Hydrated stereostructure and equilibration of geraniin

Takuo Okuda, Takashi Yoshida, Tsutomu Hatano

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Abstract

The structure of geraniin is (1), in which the cyclohexenetrione moiety is attached to O-4 of glucose. It forms a hydrated six-membered hemiacetal-ring structure (1a) in the crystalline state, and an equilibrium mixture of (1a) and a hydrated five-membered hemiacetal-ring structure (1b) upon the mutarotation. The absolute configurations are also represented by (1a) and (1b).

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalJournal of the Chemical Society, Perkin Transactions 1
Publication statusPublished - 1982

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Crystalline materials
Glucose
Geraniin

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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N2 - The structure of geraniin is (1), in which the cyclohexenetrione moiety is attached to O-4 of glucose. It forms a hydrated six-membered hemiacetal-ring structure (1a) in the crystalline state, and an equilibrium mixture of (1a) and a hydrated five-membered hemiacetal-ring structure (1b) upon the mutarotation. The absolute configurations are also represented by (1a) and (1b).

AB - The structure of geraniin is (1), in which the cyclohexenetrione moiety is attached to O-4 of glucose. It forms a hydrated six-membered hemiacetal-ring structure (1a) in the crystalline state, and an equilibrium mixture of (1a) and a hydrated five-membered hemiacetal-ring structure (1b) upon the mutarotation. The absolute configurations are also represented by (1a) and (1b).

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