91635-19-7Relevant academic research and scientific papers
Decarboxylative Hydroxylation of Benzoic Acids
Ritter, Tobias,Su, Wanqi,Xu, Peng
supporting information, p. 24012 - 24017 (2021/10/06)
Herein, we report the first decarboxylative hydroxylation to synthesize phenols from benzoic acids at 35 °C via photoinduced ligand-to-metal charge transfer (LMCT)-enabled radical decarboxylative carbometalation. The aromatic decarboxylative hydroxylation is synthetically promising due to its mild conditions, broad substrate scope, and late-stage applications.
Determination of aromaticity indices of thiophene and furan by nuclear magnetic resonance spectroscopic analysis of their phenyl esters
Lee, Chang Kiu,Yu, Ji Sook,Lee, Hye-Jin
, p. 1207 - 1217 (2007/10/03)
A series of m- and p-substituted phenyl benzoates, 2-thienoates, and 2-furoates were prepared and their 1H and 13C nmr spectroscopic characteristics were examined. In general, good correlations were observed between the chemical shift values of protons and carbons of the acyl aromatic rings and the Hammett σ. Plots of the chemical shift values of the carbonyl carbons of the benzoates against those of the 2-thienoates and 2-furoates gave an excellent correlation and the values of the slopes are 0.85 and 0.75, respectively, in dimethyl sulfoxide-d6 and 0.90 and 0.78, respectively, in chloroform-d. The values could be considered as a set of aromaticity indices.
A facile synthesis of 3-phenyl-4-(2-thienyl/2-furyl)- and 3,4-di(2-thienyl)coumarins by phase transfer catalysis method
Kumari,Krupadanam,Srimannarayana
, p. 62 - 64 (2007/10/03)
Synthesis and characterization of 3-phenyl-4-(2-thienyl)coumarins, 4-(2-furyl)-3-phenylcoumarins and 3,4-di(2-thienyl)coumarins have been reported by phase transfer catalysis method in 75% yields. This method involves condensation of appropriate 2-thienyl
