Issue 37, 2013

N-Heterocyclic carbene-catalyzed highly enantioselective synthesis of substituted dihydropyranopyrazolones

Abstract

Highly optically pure multisubstituted dihydropyrano[2,3-c]pyrazol-6-(1H)-ones were synthesized via the N-heterocyclic carbene-catalyzed enantioselective [4 + 2] annulation of α-chloroaldehydes and pyrazolone-derived oxodienes.

Graphical abstract: N-Heterocyclic carbene-catalyzed highly enantioselective synthesis of substituted dihydropyranopyrazolones

Supplementary files

Article information

Article type
Communication
Submitted
15 Jul 2013
Accepted
31 Jul 2013
First published
01 Aug 2013

Org. Biomol. Chem., 2013,11, 6255-6257

N-Heterocyclic carbene-catalyzed highly enantioselective synthesis of substituted dihydropyranopyrazolones

H. Zhang, H. Lv and S. Ye, Org. Biomol. Chem., 2013, 11, 6255 DOI: 10.1039/C3OB41455H

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