## Abstract The effect of the substituent groups (alkyl or aryl) on the structure, electronic, optical properties, ionization potentials (IPs), electron affinities (EAs), and reorganization energy of the donor–acceptor monomers 5,8‐di‐2‐thienyl‐quinoxaline (T[Q]T), 4,9‐di‐2‐thienylpyrazine[2,3‐g]qu
✦ LIBER ✦
Preparation of Sialyl Donors Carrying Functionalized Ester Substituents: Effects on the Selectivity of Glycosylation.
✍ Scribed by Akihiro Ishiwata; Yukishige Ito
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 51 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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A pseudodisaccharide, a 5-0-Q?-D-mannopyranosyl)-2-deoxystreptamine derivative, was obtained preferentially when 2,3&tri-O-ally&6-0-benzyl-a-D-mannopyranosyl chloride (1) was used as the glycosyl donor for coupling with I ,3-di-~-~nzyloxyc~bonyl-Z-d~xyst~ptamine (2) usmg silver t&late as a promoter