| Patent Number |
Title Of Patent |
Date Issued |
| 6639095 |
Process for preparing optically active .alpha.-hydroxy acids and derivatives thereof |
October 28, 2003 |
| The present invention provides a process for preparing optically active .alpha.-hydroxy acids and derivatives thereof by subjecting the alkylated 1,3-dioxolanones of formula (IV) wherein R.sub.1 and R.sub.2 are the same or different and are each independently H or C.sub.1-6 alkyl; R.sub. |
| 6258966 |
Chiral ligand and method for preparing cyanohydrins from aldehydes |
July 10, 2001 |
| A chiral ligand of the formula (II) or formula (II'), ##STR1##was synthesized. The chiral ligand (II) or formula (II') can chelate to metals to form a catalytic complex to catalyze the addition of trimethylsilyl cyanide to aldehydes to give optically active cyanohydrin, individually. |
| 6127537 |
Method for preparing 3-amino-1,2-propandiol derivatives |
October 3, 2000 |
| A method for the preparation of 3-amino-1,2-propandiol derivatives of the formula (I) ##STR1## by reacting a compound of the formula (II) ##STR2## with RNH.sub.2, wherein R and R.sub.1 have the same meaning as given in the description. The formula (I) derivatives are .beta.-b |
| 6054065 |
Chiral ligand and method for preparing cyanohydrins from aldehydes |
April 25, 2000 |
| A chiral ligand of the formula (I) or formula (I'), ##STR1## was synthesized. The chiral ligand (I) or formula (I') can chelate to metals to form a catalytic complex to catalyze the addition of trimethylsilyl cyanide to aldehydes to give optically active cyanohydrin, each individ |
