Title
Lewis acid promoted Mannich type reactions of <tex>$\alpha$</tex>, <tex>$\alpha$</tex>-dichloro aldimines with potassium organotrifluoroborates Lewis acid promoted Mannich type reactions of <tex>$\alpha$</tex>, <tex>$\alpha$</tex>-dichloro aldimines with potassium organotrifluoroborates
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Oxford ,
Subject
Chemistry
Source (journal)
Tetrahedron. - Oxford
Volume/pages
63(2007) :36 , p. 8921-8931
ISSN
0040-4020
ISI
000252091700028
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Potassium phenylethynyltrifluoroborate and potassium styryltrifluoroborates react with alpha, alpha-dichlorinated aldimines in the presence of BF(3). OEt(2) as a Lewis acid to give a new stable class of functionalized propargylamines and allylamines. The use of hexafluoroisopropanol as a co-solvent in this modified Petasis reaction allows high yield isolation of the target compounds. (C) 2007 Elsevier Ltd. All rights reserved.
E-info
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