Unexpected course of the reaction of 1,3-bis(dimethylamino)trimethinium perchlorate with 3-substituted prop-2-ynals leading to 1-aryl-2,4,6-triformylbenzenes

Authors
Suchy, P Dvorak, D Havelkova, M
Citation
P. Suchy et al., Unexpected course of the reaction of 1,3-bis(dimethylamino)trimethinium perchlorate with 3-substituted prop-2-ynals leading to 1-aryl-2,4,6-triformylbenzenes, COLL CZECH, 64(1), 1999, pp. 119-129
Citations number
24
Categorie Soggetti
Chemistry
Journal title
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS
ISSN journal
00100765 → ACNP
Volume
64
Issue
1
Year of publication
1999
Pages
119 - 129
Database
ISI
SICI code
0010-0765(199901)64:1<119:UCOTRO>2.0.ZU;2-P
Abstract
Reaction of 1,3-bis(dimethylamino)trimethinium perchlorate (1) with 3-subst ituted prop-2-ynals (4) in acetic anhydride at the presence of ZnBr2 gives upon hydrolysis 1-substituted 2,4,6-triformylbenzenes (6) in low to moderat e yield. This reaction is restricted to prop-2-ynals bearing electron rich aromatic substituents at the 3-position.