Synthesis of spiroannulated dihydroisobenzofuranylated monosaccharides
作者:Sushil K. Maurya、Srinivas Hotha
DOI:10.1016/j.tetlet.2006.03.016
日期:2006.5
An efficient synthesis of spiroannulated dihydroisobenzofurans is achieved using easily accessible carbohydrate-derived furanyl propargyl ethers via an AuCl3 promoted intramolecular Diels-Alder (IMDA) reaction. The scope of the spiroannulation protocol was demonstrated using a diverse range of pentofuranosyl, hexofuransoyl and hexopyranosyl derived substrates in order to synthesize spiroannulated dihydroisobenzofurans. The reaction is high yielding, moisture tolerant, fast and uses only a catalytic amount of AuCl3. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis of spiro carbon linked disaccharides from d-glucose, d- and l-arabinose
The synthesis of new spiro carbon linked disaccharides fromd-glucose, d- and l-arabinose is described. In the present study furan is used as a masked sugar synthon, while chirality is transferred from the sugar derived chiral templates.