New polymer-supported catalysts derived from Cinchona alkaloids: Their usein the asymmetric Michael reaction

Authors
Alvarez, R Hourdin, MA Cave, C d'Angelo, J Chaminade, P
Citation
R. Alvarez et al., New polymer-supported catalysts derived from Cinchona alkaloids: Their usein the asymmetric Michael reaction, TETRAHEDR L, 40(39), 1999, pp. 7091-7094
Citations number
14
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
39
Year of publication
1999
Pages
7091 - 7094
Database
ISI
SICI code
0040-4039(19990924)40:39<7091:NPCDFC>2.0.ZU;2-3
Abstract
New polymer-supported catalysts derived from quinine and quinidine were ela borated and tested in the conjugate addition between enamino ester 13 and m ethyl vinyl ketone. By employing a 7-atom-length spacer, an excellent enant ioselectivity was observed (87%). (C) 1999 Published by Elsevier Science Lt d. All rights reserved.