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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

✍ Scribed by Jin-Hang Li; Huan-Feng Jiang; Ming-Cai Chen

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 356 KB
Volume: 19
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.20010190711

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✦ Synopsis

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 dicarbonylation of acetylenes in the presence of PdCl~2~, CuCl~2~, and NaHCO~3~. For tertiary alcohols, maleic anhydrides were synthesized selectively.

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