with NBS in toluene was found to conveniently afford the corresponding carboxylicesters, including those bearing a bulky or long-chain substituent, in satisfactory to excellent yields. This approach not only represents a convenient and economic approach to a direct transformation of an alkoxyamide moiety into the carboxylicester functional group, via oxidative homocoupling and the subsequent thermal
An Electrochemical Method for Carboxylic Ester Synthesis from <i>N</i>-Alkoxyamides
作者:Kripa Subramanian、Subhash L. Yedage、Bhalchandra M. Bhanage
DOI:10.1021/acs.joc.7b01473
日期:2017.10.6
An electrochemical method for the synthesis of carboxylic as well as hindered esters from N-alkoxyamides has been reported. The electrochemical reaction proceeds through constant current electrolysis (CCE) by taking advantage of the dual role of n-Bu4NI (TBAI) as the redox catalyst as well as the supporting electrolyte. Besides providing mild reaction conditions, the present protocol is free from external
Rhodium-Catalyzed Azine-Directed C–H Amidation with <i>N</i>-Methoxyamides
作者:Tao Ban、Huu-Manh Vu、Jing Zhang、Jia-Yuan Yong、Qiong Liu、Xu-Qin Li
DOI:10.1021/acs.joc.1c02868
日期:2022.5.6
N-methoxyamide reagents as an amide source, C–H amidation was realized at the ortho position of azine under the action of rhodium and boric acid. The method has mild reaction conditions, high atomic utilization, excellent yield, and wide adaptability to amidation reagents (both aromatic amides and fatty amides are applicable). Amide-substituted ketones can be obtained by a simple treatment and can be further transformed
Imidazoquinoline compounds with an oxime substituent at the 1-position, pharmaceutical compositions containing the compounds, intermediates, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.