AN ISOLABLE DIOXASUBSTITUTED PENTADIENYLIUM ION

Authors
LUNING U BAUMSTARK R
Citation
U. Luning et R. Baumstark, AN ISOLABLE DIOXASUBSTITUTED PENTADIENYLIUM ION, Tetrahedron letters, 34(32), 1993, pp. 5059-5062
Citations number
20
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
34
Issue
32
Year of publication
1993
Pages
5059 - 5062
Database
ISI
SICI code
0040-4039(1993)34:32<5059:AIDPI>2.0.ZU;2-5
Abstract
The condensation of the bis-ortho-substituted acetophenone 3 with trie thyl orthoformiate (4) by perchloric acid does not yield a pyrylium sa lt 5 but a pentadienylium ion 6 which is stabilized by oxasubstituents .