Synthesis of New Iminocoumarins Bearing Parabanic Moieties
摘要:
[image omitted] The synthesis of novel substituted 3-p-nitro-phenyliminocoumarins and corresponding N-ureaiminocoumarins is described. The condensation of these materials with oxalyl chloride leads to the corresponding N-parabanic iminocoumarins, which have not previously been described, in moderate or good yields and high selectivity. The structures were characterized by Fourier transform infrared, 1H and 13C NMR, and elemental analysis.
Application of the polyacrylonitrile fiber as a support for the green heterogeneous base catalyst and supported phase-transfer catalyst
作者:Xian-Lei Shi、Minli Tao、Huikun Lin、Wenqin Zhang
DOI:10.1039/c4ra12069h
日期:——
Highly efficient and recyclable polyethylene polyamine functionalized polyacrylonitrile fiber as the heterogeneous base catalyst and supported phase-transfer catalyst.
高度高效且可回收的聚乙烯聚胺官能化聚丙烯腈纤维作为异质基催化剂和支撑的相转移催化剂。
Synthesis of New Iminocoumarins Bearing Parabanic Moieties
作者:Leila Benmaktouf、Houcine Ammar、Yves Le Bigot、Souhir Abid
DOI:10.1080/00397911003710562
日期:2011.3.3
[image omitted] The synthesis of novel substituted 3-p-nitro-phenyliminocoumarins and corresponding N-ureaiminocoumarins is described. The condensation of these materials with oxalyl chloride leads to the corresponding N-parabanic iminocoumarins, which have not previously been described, in moderate or good yields and high selectivity. The structures were characterized by Fourier transform infrared, 1H and 13C NMR, and elemental analysis.