Inorganic Salts and Dehydrating Agents Cooperatively Promoted Ru-Catalyzed Ethylene Methoxycarbonylation Using CO2 as a CO Surrogate
نویسندگان
چکیده
The use of CO2 as a CO surrogate for the carbonylation olefin has attracted considerable attention due to its abundance, readily availability, nontoxicity, and recyclability. In this work, we describe synthesis methyl propionate (MPA), key intermediate methacrylate in commercial Lucite Alpha process, by ruthenium-catalyzed methoxycarbonylation ethylene with carbonyl source. An efficient approach producing MPA been developed adding metal halide promoters dehydrating agents. Control experiments suggest that NHC-Ru-hydride may be real active species formed situ reaction Ru3(CO)12 ionic liquid (IL). NMR data demonstrate inorganic salts favor formation species, which is an important issue their promotion effect. terms strategy overcome chemical equilibrium addition agents IL participation tasked containing siloxyl group was employed Ru-catalyze ethylene, showed higher catalytic efficiency comparison without group.
منابع مشابه
Pd-catalyzed ethylene methoxycarbonylation with Brønsted acid ionic liquids as promoter and phase-separable reaction media†
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Borate esters as alternative acid promoters in the palladium-catalyzed methoxycarbonylation of ethylene.
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Synlett 2002, No. 12, Print: 02 12 2002. Art Id.1437-2096,E;2002,0,12,2023,2026,ftx,en;G27602ST.pdf. © Georg Thieme Verlag Stuttgart · New York ISSN 0936-5214 Abstract: Microwave irradiation is used to accelerate Pauson– Khand reactions. The conditions for the Pauson–Khand reaction, catalytic in Co2(CO)8 under microwave irradiation, were optimized. It is possible to obtain various types of [2+2...
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The reduction of CO2 in a biphasic liquid-condensed gas system was investigated as a function of the CO2 pressure. Using 1-benzyl-1,4-dihydronicotinamide (BNAH) as sacrificial electron donor dissolved in a dimethylformamide-water mixture and [Ru(bpy)2(CO)L](n+) as a catalyst and [Ru(bpy)3](2+) as a photosensitizer, the reaction was found to produce a mixture of CO and formate, in total about 25...
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ژورنال
عنوان ژورنال: Catalysts
سال: 2022
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal12080826