143287-94-9Relevant articles and documents
Palladium-Catalyzed Carboxylation of Vinyl Triflates. Electrosynthesis of α, β-Unsaturated Carboxylic Acids
Jutand, Anny,Négri, Serge
, p. 719 - 721 (1997)
The electrocarboxylation of vinyl triflates performed with carbon dioxide and a catalytic amount of PdCl2(PPh3)2 affords α,β-unsaiurated carboxylic acids. The reactivity of vinyl triflates has been reversed in the presence of an electron source, since they now react with electrophiles. The reaction proceeds by an activation of the C-O bond of the vinyl triflate by a palladium(O) complex followed by an activation by electron transfer, of the vinylpalladium(II) complex formed in the oxidative addition.
Method for preparing alpha, beta-unsaturated carboxylic acid by reacting alkenyl boron compound with carbon dioxide under catalysis of cuprous halide
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Paragraph 0071-0072, (2020/06/17)
The invention discloses a method for preparing alpha, beta-unsaturated carboxylic acid through a carboxylation reaction of an alkenyl boron compound and carbon dioxide under the catalysis of cuprous halide. According to the method, carbon dioxide is used as a C1 source, the cuprous halide is adopted for catalysis, and alkoxide serves as alkali to react in an organic solvent, so the method is simple and easy to implement, has a wide substrate application range, converts various alkenyl boron compounds such as alkenyl boric acid, alkenyl borate and borate into corresponding alpha, beta-unsaturated carboxylic acid under mild conditions, and has a very high yield. The obtained product alpha, beta-unsaturated carboxylic acid is an important intermediate for preparing fine chemical products suchas perfumes, insecticides and the like.
Palladium-Catalyzed Visible-Light-Driven Carboxylation of Aryl and Alkenyl Triflates by Using Photoredox Catalysts
Shimomaki, Katsuya,Nakajima, Tomoya,Caner, Joaquim,Toriumi, Naoyuki,Iwasawa, Nobuharu
supporting information, p. 4486 - 4489 (2019/06/24)
A visible-light-driven carboxylation of aryl and alkenyl triflates with CO2 is developed by using a combination of Pd and photoredox catalysts. This reaction proceeds under mild conditions and can be applied to a wide range of substrates including acyclic alkenyl triflates.