Synthesis of a 2,3-Di-O-substituted Heptose Structure by Regioselective 3-O-Silylation of a 2-O-Substituted Heptose Derivative
β Scribed by Kazuyuki Ishii; Yasuaki Esumi; Youhei Iwasaki; Ryohei Yamasaki
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 267 KB
- Volume
- 2004
- Category
- Article
- ISSN
- 1434-193X
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## Abstract We have synthesized a tetrasaccharide containing a 3,4βdibranched Lβ__glycero__βDβ__manno__βheptose (Hep), Ξ²βlactosylβ(1β4)β[LβΞ±βDβHepβ(1β3)]βLβΞ±βDβHep **19**, by using a mannose (Man) derivative as an acceptor. Prior to the construction of the branched Hep, we confirmed that the 3,4βdi
## Abstract magnified image A convenient and efficient method for the preparation of 3βarylβchromeneβ2βthiones was reported. These compounds **2aβ2o** with various functional groups were synthesized in high yield by a KF/Al~2~O~3~ meditated reaction of deoxybenzoins with CS~2~ under mild condition