The Role of Sugar Substituents in Glycoside Hydrolysis
作者:Mark N. Namchuk、John D. McCarter、Adam Becalski、Trevor Andrews、Stephen G. Withers
DOI:10.1021/ja992044h
日期:2000.2.1
used to probe the mechanism of spontaneous β-glycoside hydrolysis. Their relative rates of hydrolysis followed the order 2-deoxy > 4-deoxy > 3-deoxy ≈ 6-deoxy > parent > 6-deoxy-6-fluoro > 3-deoxy-3-fluoro > 4-deoxy-4-fluoro > 2-deoxy-2-fluoro. Hammett correlations of the pH-independent hydrolysis rates of each of the 6-, 4-, 3-, and 2-position substituted glycosides with the σI value for the sugar