Radical-mediated dehydrative preparation of cyclic imides using (NH<sub>4</sub>)<sub>2</sub>S<sub>2</sub>O<sub>8</sub>–DMSO: application to the synthesis of vernakalant
作者:Dnyaneshwar N Garad、Subhash D Tanpure、Santosh B Mhaske
DOI:10.3762/bjoc.11.113
日期:——
efficient and new dehydrating reagent for a convenient one-pot process for the synthesis of miscellaneous cyclic imides in high yields starting from readily available primary amines and cyclic anhydrides. A plausible radical mechanism involving DMSO has been proposed. The application of this facile one-pot imide forming process has been demonstrated for a practical synthesis of vernakalant.
Substituent chemical shifts of<i>N</i>-arylsuccinanilic acids,<i>N</i>-arylsuccinimides,<i>N</i>-arylmaleanilic acids, and<i>N</i>-arylmaleimides
作者:Hye Sun Lee、Ji Sook Yu、Chang Kiu Lee
DOI:10.1002/mrc.2450
日期:2009.9
NMR spectra of a series of N-arylsuccinanilic acids, N-arylsuccinimides, N-arylmaleanilicacids, and N-arylmaleimides were examined to estimate the electronic effect of the amide and imide groups on the chemicalshifts of the hydrogen and carbon nuclei of the benzene ring.
Solvent-mediated One-pot Synthesis of Cyclic<i>N</i>-Substituted Imides
作者:Sambhaji V. Patil、Keshao A. Mahale、Kirankumar S. Gosavi、Ganesh B. Deshmukh、Nilesh S. Patil
DOI:10.1080/00304948.2013.798569
日期:2013.7.4
synthesized by elaboration of N-aryl maleimides.16–19 Evaluation of the available methods for the synthesis of N-substituted cyclic imides indicates that generally the amines are first reacted with the desired cyclic anhydride and the resulting amic acids are then cyclized to the corresponding imides using reagents such as Ac2O/NaOAc, Et3N/Ac2O, dimethyl sulfate/Na2CO3/tetrabutylammonium bromide,27 cyanuric
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.