14387-10-1Relevant articles and documents
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Baker,Dippy,Page
, p. 1774,1777 (1937)
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A General, Activator-Free Palladium-Catalyzed Synthesis of Arylacetic and Benzoic Acids from Formic Acid
Wang, Lin,Neumann, Helfried,Beller, Matthias
supporting information, p. 6910 - 6914 (2018/06/04)
A new catalyst for the carboxylative synthesis of arylacetic and benzoic acids using formic acid (HCOOH) as the CO surrogate was developed. In an improvement over previous work, CO is generated in situ without the need for any additional activators. Key to success was the use of a specific system consisting of palladium acetate and 1,2-bis((tert-butyl(2-pyridinyl)phosphinyl)methyl)benzene. The generality of this method is demonstrated by the synthesis of more than 30 carboxylic acids, including non-steroidal anti-inflammatory drugs (NSAIDs), under mild conditions in good yields.
Tri-n-butyltin carboxylate derivatives of para-substituted phenyl-ethanoic acids: Synthesis, characterization and X-ray structure determination
Angiolini, Luigi,Caretti, Daniele,Mazzocchetti, Laura,Salatelli, Elisabetta,Femoni, Cristina
, p. 3301 - 3307 (2007/10/03)
The tributyltin esters of 4-(ethyl)-phenyl-ethanoic acid and 4-(isopropyl)-phenyl-ethanoic acid have been prepared as model compounds of the repeating unit of the related stannylated polystyrenic derivatives. Both the products were fully characterized by proton and carbon NMR two-dimensional techniques. FT-IR spectra show in the solid state carboxylated moieties bridging R 3 Sn groups with the metal atom expanding its coordination number, this structure being destroyed in solution. The supramolecular arrangement of the products in the solid state has been investigated by X-ray diffraction, which confirms the pentacoordination at tin in both the products, and indicates a different spatial arrangement of the alkylated aryl groups, as evidenced also by the slightly different thermal properties.