BORUAH , M and KONWAR, D and SHARMA, S D
(2007)
KF/Al2O3 mediated 1,3-dipolar cycloaddition of azomethine ylides: a novel and convenient procedure for the synthesis of highly substituted pyrrolidines.
Tetrahedron Letters, 48 (26).
pp. 4535-4537.
Abstract
—The regio- and diastereoselective synthesis of pyrrolidine derivatives through 1,3-dipolar cycloaddition of an azomethine
ylide and dipolarophile mediated by KF/Al 2O 3, a versatile solid supported reagent, is reported. KF/Al 2O 3 is sufficiently basic such
thatitcandeprotonatea-iminoesterstogenerateazomethineylidesanditalsofunctionsasasolidsupportedcatalystleadingtothe
cycloadduct rather than the Michael adduct.
2007 Elsevier Ltd. All rights reserved.
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