Ruthenium?Catalyzed Coupling Reactions of CO 2 with C 2 H 4 and Hydrosilanes towards Silyl Esters
نویسندگان
چکیده
A series of in situ-prepared catalytic systems incorporating RuII precursors and bidentate phosphine ligands has been probed the reductive carboxylation ethylene presence triethylsilane as reductant. The production propionate acrylate silyl esters was evidenced by high-throughput screening (HTS) implemented batch reactor techniques. most promising catalyst identified were made Ru(H)(Cl)(CO)(PPh3)3 1,4-bis(dicyclohexylphosphino)butane (DCPB) or 1,1’-ferrocene-diyl-bis(cyclohexylphosphine) (DCPF). marked influence water on acrylate/propionate selectivity noted. Turnover numbers [mol mol(Ru)?1] up to 16 for 68 reached under relatively mild conditions (20 bar, 100 °C, 0.5 mol % Ru, 40 H2O vs. HSiEt3). Possible mechanisms are discussed.
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ژورنال
عنوان ژورنال: Chemistry: A European Journal
سال: 2021
ISSN: ['0947-6539', '1521-3765']
DOI: https://doi.org/10.1002/chem.202005083