DIRECT CATALYTIC ASYMMETRIC ALDOL REACTIONS PROMOTED BY A NOVEL BARIUM COMPLEX

Authors
YAMADA YMA SHIBASAKI M
Citation
Yma. Yamada et M. Shibasaki, DIRECT CATALYTIC ASYMMETRIC ALDOL REACTIONS PROMOTED BY A NOVEL BARIUM COMPLEX, Tetrahedron letters, 39(31), 1998, pp. 5561-5564
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
39
Issue
31
Year of publication
1998
Pages
5561 - 5564
Database
ISI
SICI code
0040-4039(1998)39:31<5561:DCAARP>2.0.ZU;2-A
Abstract
A direct catalytic asymmetric aldol reaction of an aldehyde and an unm odified ketone promoted by an asymmetric barium complex has been achie ved. The possible structure of the barium catalyst, BaB-M, which posse sses the function of a Lewis acid and a Bronsted base, was characteriz ed by LDI-TOFMS, C-13-NMR spectroscopy and extensive studies of reacti on conditions. (C) 1998 Elsevier Science Ltd. All rights reserved.