5457-78-3Relevant articles and documents
Visible-Light-Driven Dehydrogenative Coupling of Primary Alcohols with Phenols Forming Aryl Carboxylates
Ishida, Naoki,Kawasaki, Tairin,Murakami, Masahiro,Tosaki, Tomohiro
supporting information, p. 7683 - 7687 (2021/10/12)
A preparative method for obtaining aryl esters from aliphatic primary alcohols and phenols was developed. The reaction proceeds under the irradiation of visible light at ambient temperature, dispensing with any oxidant or hydrogen acceptor. Primary alcohols having a variety of functional groups are successfully esterified with phenols. The produced esters can be utilized as the precursor of various carbonyl compounds.
N-heterocyclic carbene-catalyzed oxidation of aldehydes for the synthesis of amides via phenolic esters
Ji, Miran,Lim, Seungyeon,Jang, Hye-Young
, p. 28225 - 28228 (2014/07/22)
N-heterocyclic carbene-catalyzed oxidation using TEMPO is reported for the conversion of aldehydes to amides. A wide range of amides were synthesized in good yields (up to 72%) via a one-pot, sequential protocol involving oxidative esterification of aldehydes and subsequent aminolysis. To promote efficient aminolysis, various alkoxide leaving groups were evaluated.
Synthesis and critical micelle concentration of a series of gemini alkylphenol polyoxyethylene nonionic surfactants
Yang, Fang,Li, Gang,Xu, Nian,Liu, Rong,Zhang, Song-Mei,Wu, Zeng-Jiang
, p. 339 - 345 (2012/06/30)
A series of gemini n-alkylphenol polyoxyethylene surfactants (GAP) were successfully synthesized and their molecular structure were confirmed by NMR and FTIR spectrum. Using the same synthesis route, a Gemini nonylphenol polyoxyethylene surfactant (GNP) was synthesized using an industrial nonylphenol product and paraformaldehyde, and its molecular structure was also characterized by 1H-NMR and FTIR spectra. The optimal reaction conditions were established. The critical micelle concentration (CMC) values of GAP were determined by means of Wilhelmy plate method and steady-state fluorescence probe method. The experimental results show how the lengths of the hydrophilic polyoxyethylene chain and the hydrophobic tail alter the CMC values. The CMC values of the GAP are found to be much lower than those of corresponding conventional single tail nonionic surfactants of the polyethoxylated alkylphenol type, which indicates that the gemini species exhibit a better surface activity. AOCS 2011.