AI Article Synopsis
- The rhodium quinonoid complex, K+[(1,4-benzoquinone)Rh(COD)]-, effectively catalyzes the reaction between arylboronic acids and aldehydes, leading to the formation of diaryl alcohols.
- This catalytic process is heterobimetallic, meaning both the rhodium and potasssium (an alkali metal) are crucial for the reaction to occur.
- The quinonoid catalyst serves a dual purpose by acting as a ligand for the boronic acid and also functioning as a site that can accept the aryl group during the reaction.
Article Abstract
The pi-bonded rhodium quinonoid complex, K+[(1,4-benzoquinone)Rh(COD)]-, functions as a good catalyst for the coupling of arylboronic acid and aldehydes to afford diaryl alcohols. The catalysis is heterobimetallic in that both the transition metal and concomitant alkali metal counterion play an integral part in the reaction. In addition, the anionic quinonoid catalyst itself plays a bifunctional role by acting as a ligand to the boronic acid and as a Lewis acid receptor site for the transferring aryl group.
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