Dibutylsilylene–pentose bis-chelates: on the glycoses’ binding sites for strongly Lewis-acidic centres
作者:Johanna Schulten、Peter Klüfers
DOI:10.1016/j.carres.2011.05.035
日期:2011.9
thus exhibited five-membered chelate rings. The bis-chelates of aldehydo-lyxose and -ribose were kappaO(2,4),kappaO(3,5)-bonded and resembled six-membered chelate rings. For lyxose, the aldehydo bis-chelate was isolated as a solid. The molecularstructures were assigned by a combined (1)H, (13)C, and (29)Si NMR spectroscopic approach, which was supported by X-ray analyses on crystals of the bis-DTBS