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A novel and efficient synthesis of maleic anhydrides by palladium-catalyzed dicarbonylation of terminal acetylenes in H2O/dioxane

✍ Scribed by Jinheng Li; Guoping Li; Huanfeng Jiang; Mingcai Chen

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
94 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

Maleic anhydrides can be obtained in high yields by the PdCl 2 -catalyzed dicarbonylation of terminal acetylenes in H 2 O/dioxane. It is not necessary to add reoxidants to the reaction, but reoxidants can affect the yield and the rate. We also found that the rate decreased and only traces of maleic anhydrides were formed in the presence of KCl or LiCl.

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Effect of Solvent and Acid-Base on Palla
Effect of Solvent and Acid-Base on Palladium (II)-catalyzed Dicarbonylation of Terminal Acetylenes: a General, Efficient and Stereoselective Synthesis of Maleic Diesters and Maleic Anhydrides
✍ Jin-Hang Li; Huan-Feng Jiang; Ming-Cai Chen πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 356 KB πŸ‘ 1 views

## Abstract The productions of maleic diesters and maleic anhydrides depend on the effect of solvent and acid‐base in palladium‐catalyzed dicarbonylation of terminal acetylenes. For primary and secondary alcohol in benzene, only maleic diesters were obtained stereospecifically from the dicarbonylat