The simple synthesis of new O,N,O'-tridentate ligands derived from carbohydrates is illustrated. The ligands are obtained by condensing 2-amino--D-glucosides or 2-amino--D-alloside with several 3,5-disubstituted-2-hydroxybenzaldehydes. The efficiency of the imines in the V(IV)-promoted asym. oxidn. of thioanisole has been examd. and ee's up to 60% have been achieved.
O,N,O' tridentate ligands derived from carbohydrates in the V(IV)-promoted asymmetric oxidation of thioanisole
ROVIELLO, Giuseppina;
2005-01-01
Abstract
The simple synthesis of new O,N,O'-tridentate ligands derived from carbohydrates is illustrated. The ligands are obtained by condensing 2-amino--D-glucosides or 2-amino--D-alloside with several 3,5-disubstituted-2-hydroxybenzaldehydes. The efficiency of the imines in the V(IV)-promoted asym. oxidn. of thioanisole has been examd. and ee's up to 60% have been achieved.File in questo prodotto:
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