STUDIES ON ISOCYANIDES AND RELATED-COMPOUNDS - A FACILE SYNTHESIS OF IMIDAZO[1,5-A]IMIDAZOLES

Authors
BOSSIO R MARCACCINI S PEPINO R
Citation
R. Bossio et al., STUDIES ON ISOCYANIDES AND RELATED-COMPOUNDS - A FACILE SYNTHESIS OF IMIDAZO[1,5-A]IMIDAZOLES, Liebigs Annalen der Chemie, (11), 1993, pp. 1229-1231
Citations number
15
Categorie Soggetti
Chemistry
Journal title
Liebigs Annalen der Chemie → ACNP
ISSN journal
01702041
Issue
11
Year of publication
1993
Pages
1229 - 1231
Database
ISI
SICI code
0170-2041(1993):11<1229:SOIAR->2.0.ZU;2-E
Abstract
The Ugi four-component condensation between 1,1,-diethoxy-2-isocyanoet hane (2), cycloketones 1, amine hydrochlorides 4, and potassium thiocy anate (3a) or selenocyanate (3b) affords spiroimidazoles 5, which are cyclized to spiroimidazo[1,5-alimidazole-5-thiones (or selenones) 6.