6316-54-7Relevant articles and documents
High turnover in electro-oxidation of alcohols and ethers with a glassy carbon-supported phenanthroimidazole mediator
Johnson, Bruce M.,Francke, Robert,Daniel Little,Berben, Louise A.
, p. 6493 - 6498 (2017)
Glassy carbon electrodes covalently modified with a phenanthroimidazole mediator promote electrochemical alcohol and ether oxidation: three orders of magnitude increase in TON, to ~15 000 in each case, was observed compared with homogeneous mediated reactions. We propose the deactivation pathways in homogeneous solution are prevented by the immobilization: modified electrode reversibility is increased for a one-electron oxidation reaction. The modified electrodes were used to catalytically oxidize p-anisyl alcohol and 1-((benzyloxy)methyl)-4-methoxybenzene, selectively, to the corresponding benzaldehyde and benzyl ester, respectively.
N-Aroylbenzotriazoles as Efficient Reagents for o-Aroylation in Absence of Organic Solvent
Hahnvajanawong, Viwat,Phungpis, Baramee
, p. 2671 - 2674 (2021/10/25)
N-Aroylbenzotriazoles have been shown to be efficient reagents for esterification in the absence of organic solvent. Grinding of N-aroylbenzoytiazoles with twofold excess of alcohols for a couple of hours at room temperature gave corresponding esters in high percentage of yields.
Ynoate-Initiated Selective C-N Esterification of Tertiary Amines under Transition-Metal and Oxidant-Free Conditions
Sun, Feixiang,Feng, Huangdi,Huang, Liliang,Huang, Junhai
supporting information, p. 713 - 717 (2021/01/14)
An efficient and selective method for metal-and oxidant-free deaminated esterification of tertiary amines is presented. In this protocol, ynoates play a key role to activate the Csp 3-N bond through a process of in situ generation of zwitterionic salts. The transformations show that Csp 3-N bond in the zwitterionic species has a lower dissociation energy than Csp 2-N bond, leading to break preferentially and be trapped by carboxylic acids to generate the corresponding products in moderate to good yield.