Direct immobilization of chiral auxiliaries on mineral supports and heterogeneous enantioselective allkylation of benzaldehyde with diethylzinc

Authors
Abramson, S Lasperas, M Chiche, B
Citation
S. Abramson et al., Direct immobilization of chiral auxiliaries on mineral supports and heterogeneous enantioselective allkylation of benzaldehyde with diethylzinc, J MOL CAT A, 165(1-2), 2001, pp. 231-242
Citations number
43
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169 → ACNP
Volume
165
Issue
1-2
Year of publication
2001
Pages
231 - 242
Database
ISI
SICI code
1381-1169(20010108)165:1-2<231:DIOCAO>2.0.ZU;2-Y
Abstract
New solid chiral auxiliaries are used in the enantioselective alkylation of benzaldehyde with diethylzinc. These auxiliaries are obtained by direct im mobilization of their homogeneous counterparts, (-)-ephedrine and (-)-O-met hyl-ephedrine. on the surface of mesoporous micelle templated silicates and aluminosilicates. Hybrid materials are characterized, and the interactions between the heteroatoms of the organic compounds and the surface are studi ed by FTIR spectroscopy. Efficiency of such hybrid solids is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.