Zh. Yang et al., Synthesis of new chiral Schiff bases and their application in the asymmetric trimethylsilylcyanation of aromatic aldehydes, TETRAHEDR-A, 12(11), 2001, pp. 1579-1582
The new chiral Schiff base ligands 1a-1c were synthesized from (1R)-(+)-cam
phor and found to be efficient catalysts for the enantioselective silylcyan
ation of aromatic aldehydes. The corresponding aromatic cyanohydrins were o
btained in good yields and with enantiomeric excesses (e.e.s) of up to 73%.
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