Variation of Xantphos-Based Ligands in the Palladium-Catalyzed Reaction of Aryl Halides with Ureas
β Scribed by A. G. Sergeev; G. A. Artamkina; I. P. Beletskaya
- Book ID
- 111609120
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2003
- Tongue
- English
- Weight
- 164 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1070-4280
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π SIMILAR VOLUMES
A new method for the palladium-catalyzed arylation of ureas is described. The coupling reaction of urea and phenylurea with aryl halides containing electron-withdrawing groups in the p-position in dioxane in the presence of 0.5-1.0 mol% of Pd 2 dba 3 β’CHCl 3 , Xantphos and Cs 2 CO 3 as a base gives
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
A series of xanthene-based bidentate ligands containing various substituents on diphenylphosphino groups were synthesized and tested in the palladium-catalyzed arylation reaction of urea with unactivated aryl bromides. It was found that both steric and electronic properties of the ligands have a pro