A highly stereoselective route to 1-C-(2-hydroxyaryl)-alditol derivatives
作者:Giovanni Casiraghi、Mara Cornia、Giovanna Gasparri Fava、Marisa Ferrari Belicchi、Lucia Zetta
DOI:10.1016/0008-6215(89)84035-2
日期:1989.3
Arylation at C-1 of 2,3:4,5-di- O-isopropylidene-d -arabinose and 4- O -benzyl-2,3- O-isopropylidene-d -threose variously using titanium or magnesium salts of 4- tert -butylphenol, 2-naphthol, and 5-pentylresorcinol gave the epimeric 1- C -aryl-alditol derivatives. One of these derivatives, namely, 1- C -(3- tert -butyl-6-hydroxyphenyl)-2,3:4,5-di- O-isopropylidene-d-gluco -pentitol, forms a crystalline