Expedient and Versatile Formation of Novel Amino-deoxy-ketoheptuloses
摘要:
Novel monoketoheptuloses have been synthesized employing an amination step in a pre- and/or post-C1 chain elongation using a Petasis reagent by starting from aldohexoses or aldohexosamines. A series of gluco and manno configured 1-/3-deoxy-1-/3-amino-ketohept-2-uloses could be obtained.
Expedient and Versatile Formation of Novel Amino-deoxy-ketoheptuloses
摘要:
Novel monoketoheptuloses have been synthesized employing an amination step in a pre- and/or post-C1 chain elongation using a Petasis reagent by starting from aldohexoses or aldohexosamines. A series of gluco and manno configured 1-/3-deoxy-1-/3-amino-ketohept-2-uloses could be obtained.
Selective radical synthesis of β- C -disaccharides
作者:Boris Vauzeilles、Pierre Sinaÿ
DOI:10.1016/s0040-4039(01)01533-7
日期:2001.10
Several P-C-disaccharides have been selectively synthesized by radical cyclization of two temporarily tethered functionalized monosaccharides. In this process, intramolecular addition of a carbohydrate-derived radical onto an anomeric exomethylene group, followed by axial hydrogen addition, resulted in beta stereochemistry. (C) 2001 Published by Elsevier Science Ltd.