Methyl (2′S,3′S)-3,4-O-(2′,3′-dimethoxy-butane- 2′,3′-di-yl) - L-rhamnopyran-oside: A glycosyl acceptor

Yow Fu Tsai*, Jen Ta Yang, Jhy Der Chen, Chia Her Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The title compound, C13H24O7, is the product of the ketalization of methyl l-(+)-rhamnopyran-oside with 2,3-butane-dione. It crystallizes with two mol-ecules in the asymmetric unit, which are connected by O - H⋯O hydrogen bonds. The C-3,4 diequatorial hydroxy groups of the methyl l-(+)-rhamnopyran-oside were protected, leaving the C-2 hydroxy group free. The l-(+)-rhamnopyran-oside and 2′,3′-dimethoxy-butane-2′, 3′-diyl rings adopt chair conformations and all meth-oxy groups are in axial positions. The absolute configuration was assumed from the synthesis.

Original languageEnglish
Pages (from-to)o897
JournalActa Crystallographica Section E: Structure Reports Online
Issue number5
Publication statusPublished - 2008 Apr 30
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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