Silver Beta-Ketocarboxylate, Material Comprising the Same for Forming Silver Metal, and Use Thereof
申请人:Suganuma Katsuaki
公开号:US20090209693A1
公开(公告)日:2009-08-20
It is an object to provide a novel material that can quickly form metal silver even at a low temperature of approximately 210° C. or less. This serves as a metal silver forming material that includes a silver β-ketocarboxylate. By heating this forming material, it is possible to form metal silver quickly even at a low temperature of approximately 210° C. or less. Examples of the silver β-ketocarboxylate include silver isobutyrylacetate, silver benzoylacetate, silver acetoacetate, silver propionylacetate, silver α-methylacetoacetate, and silver α-ethylacetoacetate.
copper-catalysed rearrangement of cyclic ethynylethylene carbonates has been discovered, and the in situ-formed allenal intermediates could react with a range of nucleophiles to furnish synthetically useful and highly functionalised products through the addition pathways. Mechanisticstudies reveal that the reaction proceeds through the base-mediated deprotonation as the key step to induce the rearrangement.