Abstract
Maleate diesters and maleic anhydrides can be synthesized respectively by using different type of alcohol in the palladium catalyzed dicarbonylation of terminal acetylene. In primary or second aliphatic alcohols, only α,β-unsaturated diesters were yielded. In tert-BuOH, maleic anhydrides were selectively synthesized.
ACKNOWLEDGMENT
We thank the National Natural Science Foundation of China for financial support (No. 29772036 and 29872039).