PROCESS FOR ALKOXYCARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS USING BENZENE-BASED DIPHOSPHINE LIGANDS AND ALUMINIUM TRIFLATE
To provide a process for alkoxycarbonylation of ethylenically unsaturated compounds.SOLUTION: Provided is a process comprising the process steps of: adding to an ethylenically unsaturated compound a ligand of the following formula (I) and a compound comprising Pd; adding a pretreated aluminium trifl...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a process for alkoxycarbonylation of ethylenically unsaturated compounds.SOLUTION: Provided is a process comprising the process steps of: adding to an ethylenically unsaturated compound a ligand of the following formula (I) and a compound comprising Pd; adding a pretreated aluminium triflate, where the ratio of aluminum triflate:ligand is in the range from 2 mol:1 mol to 25 mol:1 mol; adding an alcohol; feeding in CO; and heating the reaction mixture of these with conversion of the ethylenically unsaturated compound to an ester. (In the formula, R1 and R3 are each a -(C3-C20)-heteroaryl radical, and R2 and R4 are each -(C1-C12)-alkyl.)SELECTED DRAWING: None
【課題】エチレン性不飽和化合物のアルコキシカルボニル化方法を提供する。【解決手段】エチレン性不飽和化合物に、下記式(I)のリガンドと、Pd含有化合物と、を添加し、前処理済みアルミニウムトリフレートを添加し、アルミニウムトリフレート:リガンドの比率は、2モル:1モル~25モル:1モルの範囲であり、アルコールを添加し、COを導入し、これらの反応混合物を加熱し、エチレン性飽和化合物をエステルに転化する工程を含む方法である。TIFF2022083416000016.tif4569(式中、R1およびR3はそれぞれ-(C3-C20)-ヘテロアリールラジカルであり、R2およびR4はそれぞれ-(C1-C12)-アルキルである。)【選択図】なし |
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