The first approach to the synthesis of 1-unsubstituted 2-arylindolizines by intramolecular 1,5-dipolar cyclization of 2-(2-arylethenyl)pyridinium ylides in the presence of tetrakis(pyridine)cobalt (II) dichromate

Authors
Zhou, J Hu, YF Hu, HW
Citation
J. Zhou et al., The first approach to the synthesis of 1-unsubstituted 2-arylindolizines by intramolecular 1,5-dipolar cyclization of 2-(2-arylethenyl)pyridinium ylides in the presence of tetrakis(pyridine)cobalt (II) dichromate, SYNTHESIS-S, (1), 1999, pp. 166-170
Citations number
37
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
SYNTHESIS-STUTTGART
ISSN journal
00397881 → ACNP
Issue
1
Year of publication
1999
Pages
166 - 170
Database
ISI
SICI code
0039-7881(199901):1<166:TFATTS>2.0.ZU;2-B
Abstract
The first approach to the preparation of I-unsubstituted 2-arylindolizines by intramolecular 1,5-dipolar cyclization of 2-(2-arylethenyl)pyridinium yl ides 2a-v in the presence of tetrakis(pyridine)cobalt (II) dichromate was d eveloped. Several kinds of novel l-unsubstituted 2-aryl-3-acetyl-, 3-benzoy l-, 3-ethoxycarbonyl-and 3-(4-nitrobenzoyl)indolizines 3a-v were synthesize d under the mild conditions in reasonable to moderate yields.