2451-84-5Relevant articles and documents
Efficient Palladium-Catalyzed Carbonylation of 1,3-Dienes: Selective Synthesis of Adipates and Other Aliphatic Diesters
Yang, Ji,Liu, Jiawang,Ge, Yao,Huang, Weiheng,Ferretti, Francesco,Neumann, Helfried,Jiao, Haijun,Franke, Robert,Jackstell, Ralf,Beller, Matthias
supporting information, p. 9527 - 9533 (2021/03/08)
The dicarbonylation of 1,3-butadiene to adipic acid derivatives offers the potential for a more cost-efficient and environmentally benign industrial process. However, the complex reaction network of regioisomeric carbonylation and isomerization pathways, make a selective and direct transformation particularly difficult. Here, we report surprising solvent effects on this palladium-catalysed process in the presence of 1,2-bis-di-tert-butylphosphin-oxylene (dtbpx) ligands, which allow adipate diester formation from 1,3-butadiene, carbon monoxide, and methanol with 97 % selectivity and 100 % atom-economy under scalable conditions. Under optimal conditions a variety of di- and triesters from 1,2- and 1,3-dienes can be obtained in good to excellent yields.
Assisted Tandem Catalytic Conversion of Acrylates into Adipic Esters
Maity, Pradip K.,Tunge, Jon A.
, p. 3419 - 3423 (2018/07/31)
A ruthenium-catalyzed tail-to-tail dimerization of acrylates followed by hydrogenation results in the synthesis of adipic esters in one pot. An imine-ligated ruthenium complex that has good catalytic reactivity for tail-to-tail dimerization of methyl acrylate can be readily converted to a hydrogenation catalyst resulting in the assisted tandem catalytic conversion of methyl acrylate to methyl adipate.
PROCESS FOR DOUBLE CARBONYLATION OF ALLYL ETHERS TO CORRESPONDING DIESTERS
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Paragraph 0095; 0103, (2017/07/14)
The invention relates to a process for doubly carbonylating allyl ethers to the corresponding diesters, wherein a linear or branched allyl ether is reacted with a linear or branched alkanol (alcohol) with supply of CO and in the presence of a catalytic system composed of a palladium complex and at least one organic phosphorus ligand and in the presence of a hydrogen halide selected from HCl, HBr and HI.
