52109-89-4Relevant academic research and scientific papers
Efficient and Mild Ullmann-Type N-Arylation of Amides, Carbamates, and Azoles in Water
Bollenbach, Maud,Aquino, Pedro G. V.,de Araújo-Júnior, Jo?o Xavier,Bourguignon, Jean-Jacques,Bihel, Frédéric,Salomé, Christophe,Wagner, Patrick,Schmitt, Martine
supporting information, p. 13676 - 13683 (2017/10/10)
A simple, sustainable, efficient, mild, and low-cost protocol was developed for d-glucose-assisted Cu-catalyzed Ullmann reactions in water for amides, carbamates, and nitrogen-containing heterocycles. The reaction was compatible with diverse aryl/heteroaryl iodides, giving highly substituted pyridine, indole, or indazole rings. This method offers an attractive alternative to existing protocols, because the reaction proceeds in aqueous media, occurs at or near ambient temperature, and provides the N-arylated products in good to high yields.
Positional effect on the NMR spectroscopy of esters and amides of 2- and 3-furancarboxylic acids
Kyu, Ok Jeon,Sook Yu, Ji,Kin Lee, Chang
, p. 153 - 164 (2008/02/02)
Eleven derivatives of esters and amides of 2- and 3-furancarboxylic acids and their NMR spectra were obtained in DMSO-d6. The spectra of esters were also obtained in chloroform-d. The chemical shift values show good correlation with the Hammett
