A new synthesis of 1,3,4-oxadiazoles. Cyclization of N,N '-diacylhydrazines catalyzed by palladium(0).

Citation
S. Lutun et al., A new synthesis of 1,3,4-oxadiazoles. Cyclization of N,N '-diacylhydrazines catalyzed by palladium(0)., SYN COMMUN, 29(1), 1999, pp. 111-116
Citations number
24
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
29
Issue
1
Year of publication
1999
Pages
111 - 116
Database
ISI
SICI code
0039-7911(1999)29:1<111:ANSO1C>2.0.ZU;2-X
Abstract
Several 1,3,4-oxadiazoles were synthetized by cyclization of N,N'-diacylhyd razines catalyzed by palladium(0). Water formed during the reaction is resp onsible for the hydrolysis of the products. To avoid it, we introduced benz oic anhydride into the medium and obtained an increased yield of oxadiazole s.