Cm. Bellucci et al., CATALYTIC ASYMMETRIC-SYNTHESIS OF SECONDARY ALCOHOLS USING CHIRAL IS-1-AMINO-2-HYDROXY-1,2,3,4-TETRAHYDRONAPHTHALENE AS CHIRAL LIGAND, Tetrahedron : asymmetry, 8(6), 1997, pp. 895-902
The synthesis and resolution of is-1-amino-2-hydroxy-1,2,3,4-tetrahydr
onaphthalene 5 by a simple and straightforward methodology has been ac
hieved. The homochiral aminoalcohol has been used in the catalytic red
uction of ketones by means of BH3 . SMe(2) affording secondary alcohol
s in high enantiomeric excesses. On the contrary low enantiomeric exce
sses have been obtained when N,N-dibutyl-1-amino-2-hydroxytetrahydrona
phthalene 11 has been used to catalyze the enantioselective addition o
f Et(2)Zn to benzaldehyde. (C) 1997 Elsevier Science Ltd.