The effect of crown-ether on the palladium-catalyzed Ullmann-type couplingmediated by zinc in air and water

Authors
Venkatraman, S Li, CJ
Citation
S. Venkatraman et Cj. Li, The effect of crown-ether on the palladium-catalyzed Ullmann-type couplingmediated by zinc in air and water, TETRAHEDR L, 41(25), 2000, pp. 4831-4834
Citations number
34
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
25
Year of publication
2000
Pages
4831 - 4834
Database
ISI
SICI code
0040-4039(20000619)41:25<4831:TEOCOT>2.0.ZU;2-C
Abstract
In the presence of a catalytic amount of 18-crown-6, palladium-catalyzed re ductive coupling of aryl halides mediated by zinc was found effective in wa ter alone, at ambient temperature, and under an atmosphere of air to give i mproved isolated yield of the Ullmann-type reaction products. (C) 2000 Else vier Science Ltd. All rights reserved.