4380-88-5Relevant articles and documents
Water-initiated hydrocarboxylation of terminal alkynes with CO2and hydrosilane
Wang, Meng-Meng,Lu, Sheng-Mei,Paridala, Kumaraswamy,Li, Can
supporting information, p. 1230 - 1233 (2021/02/09)
This work discloses a Cu(ii)-Ni(ii) catalyzed tandem hydrocarboxylation of alkynes with polysilylformate formed from CO2and polymethylhydrosiloxane that affords α,β-unsaturated carboxylic acids with up to 93% yield. Mechanistic studies indicate that polysilylformate functions as a source of CO and polysilanol. Besides, a catalytic amount of water is found to be critical to the reaction, which hydrolyzes polysilylformate to formic acid that induces the formation of Ni-H active species, thereby initiating the catalytic cycle.
Activation of aryl and vinyl triflates by palladium and electron transfer - Electrosynthesis of aromatic and αβ-unsaturated carboxylic acids from carbon dioxide
Jutand, Anny,Négri, Serge
, p. 1811 - 1821 (2007/10/03)
The electrochemical reduction of aryl and vinyl triflates in the presence of CO2 and a catalytic amount of palladium results in the formation of aromatic and αβ-unsaturated carboxylic acids. Aryl and vinyl triflates usually undergo palladium-catalysed cross-coupling reactions with nucleophiles. Their reactivity has been reversed in the presence of an electron source, so that they react with electrophiles such as CO2. The reaction proceeds through an activation of the C-O bond of the aryl or vinyl triflate by oxidative addition to a palladium(0) complex, followed by an activation by electron transfer of the thus formed aryl- or vinylpalladium(II) complexes.
Kinetics and Mechanism of Oxidative Alkoxylation of Unsaturated Aldehydes
Kuptsevich,Pikh
, p. 781 - 783 (2007/10/03)
Kinetic trends and mechanism of catalytic oxidation of unsaturated aldehydes with hydrogen peroxide in alcohols was studied. The participation of semiacetals of unsaturated aldehydes in the formation of reaction products is established and the dependence
