ChemInform Abstract: Efficient Synthesis of 1,1-Diaryl 1,2-Dienes via Pd(0)-Catalyzed Coupling of Aryl Halides with Allenic/Propargylic Zinc Reagents.

✍ Scribed by Shengming Ma; Aibin Zhang

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 30
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199924096

✦ Synopsis

Efficient Synthesis of 1,1-Diaryl 1,2-Dienes via Pd(0)-Catalyzed Coupling of Aryl Halides with Allenic/Propargylic Zinc Reagents.

-The title reaction is proposed to involve oxidative addition of halides to Pd(0) to form an organopalladium intermediate. This is trapped by an allenic or propargylic zinc reagent leading to the formation of allenes in moderate to good yields. -(MA, SHENGMING; ZHANG, AIBIN;