Indium Triflate-Catalyzed Vinylation of β-Ketoesters with Acetylene Gas
摘要:
An ln(OTf)(3)-Catalyzed addition of a beta-ketoester to acetylene in the presence of molecular sieves produces a alpha-vinylated ketoester in good to excellent yield. The vinylation reaction proceeds without any loss of elements in starting molecules under solvent-free conditions and allows the use of welding-grade acetylene, providing a practical method for synthetic utilization of acetylene gas.
Indium Triflate-Catalyzed Vinylation of β-Ketoesters with Acetylene Gas
作者:Masaharu Nakamura、Kohei Endo、Eiichi Nakamura
DOI:10.1021/ol051057z
日期:2005.7.1
An ln(OTf)(3)-Catalyzed addition of a beta-ketoester to acetylene in the presence of molecular sieves produces a alpha-vinylated ketoester in good to excellent yield. The vinylation reaction proceeds without any loss of elements in starting molecules under solvent-free conditions and allows the use of welding-grade acetylene, providing a practical method for synthetic utilization of acetylene gas.
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