REACTION OF PYRYLIUM-SALTS WITH NUCLEOPHILES .24. NEW MONOPYRIDINIUM AND BISPYRIDINIUM SALTS WITH A CENTRAL 2,5-DIARYLOXAZOLE GROUP

Authors
SCHIKETANZ I ISTRATI D DELEANU C DRAGHICI C BALABAN AT
Citation
I. Schiketanz et al., REACTION OF PYRYLIUM-SALTS WITH NUCLEOPHILES .24. NEW MONOPYRIDINIUM AND BISPYRIDINIUM SALTS WITH A CENTRAL 2,5-DIARYLOXAZOLE GROUP, Collection of Czechoslovak Chemical Communications, 62(5), 1997, pp. 769-780
Citations number
30
Categorie Soggetti
Chemistry
Journal title
Collection of Czechoslovak Chemical Communications → ACNP
ISSN journal
00100765
Volume
62
Issue
5
Year of publication
1997
Pages
769 - 780
Database
ISI
SICI code
0010-0765(1997)62:5<769:ROPWN.>2.0.ZU;2-A
Abstract
Reduction of nitro substituted 2,5-diaryloxazoles with hydrazine hydra te and Raney nickel affords in good yield 2,5-diaryloxazoles having am ino group(s) on the aryl ring(s). The reaction of 2,4,6-tri-substitute d pyrylium perchlorates with mono-and diamino-2,5-diaryloxazoles yield s new mono- and bispyridinium perchlorates with a central 2,5-diarylox azole group. Their electronic, C-13 NMR and H-1 NMR spectra are presen ted and discussed.