1,2-trans Glycosylation via Neighboring Group Participation of 2- O-Alkoxymethyl Groups: Application to One-Pot Oligosaccharide Synthesis

Milandip Karak, Yohei Joh, Masahiko Suenaga, Tohru Oishi, Kohei Torikai

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

The use of 2-O-alkoxymethyl groups as effective stereodirecting substituents for the construction of 1,2-trans glycosidic linkages is reported. The observed stereoselectivity arises from the intramolecular formation of a five-membered cyclic architecture between the 2-O-alkoxymethyl substituent and the oxocarbenium ion, which provides the expected facial selectivity. Furthermore, the observed stereocontrol and the extremely high reactivity of 2-O-alkoxymethyl-protected donors allowed development of a one-pot sequential glycosylation strategy that should become a powerful tool for the assembly of oligosaccharides.

本文言語英語
ページ(範囲)1221-1225
ページ数5
ジャーナルOrganic letters
21
4
DOI
出版ステータス出版済み - 2 15 2019

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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