52522-40-4, Name is Tris(dibenzylideneacetone)dipalladium-chloroform, belongs to catalyst-palladium compound, is a common compound. Recommanded Product: Tris(dibenzylideneacetone)dipalladium-chloroformIn an article, once mentioned the new application about 52522-40-4.
Palladium-catalyzed alpha-arylation of carboxylic acid derivatives with grignard reagent
The reaction of arylacetic acid with aryl halides in the presence of a palladium(0) catalyst proceeds with a Grignard reagent (2 equiv.) to afford diarylated acetic acids. Deprotonation was confirmed by treatment with allyl bromide, which revealed that the use of EtMgCl or tBuMgCl at room temperature to 60 C resulted in complete deprotonation. After deprotonation of (4-methoxyphenyl)acetic acid under such conditions, the resulting mixture was treated with 4-methoxybromobenzene in the presence of Pd(tBu3P) 2 (2 mol-%) as a catalyst to give bis(4-methoxyphenyl)acetic acid in 86% yield. The reaction with several aryl halides under similar conditions gave the corresponding diarylacetic acids. Copyright
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Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method