15333-80-9Relevant articles and documents
Application of the polyacrylonitrile fiber as a support for the green heterogeneous base catalyst and supported phase-transfer catalyst
Shi, Xian-Lei,Tao, Minli,Lin, Huikun,Zhang, Wenqin
, p. 64347 - 64353 (2014)
A facile synthesized polyethylene polyamine functionalized polyacrylonitrile fiber (PANF-PA), capable of acting as the heterogeneous base catalyst and supported phase-transfer catalyst (SPTC), was presented in Knoevenagel condensation-cyclization and nucleophilic substitution for the synthesis of a number of substituted iminocoumarins and sulfones in aqueous systems, respectively. Excellent results are shown in terms of simple procedures, high chemical yields (up to 96%), extensive applicability and superior catalytic recyclability even for 10 cycles. The deeper active principle of the PANF-PA as SPTC was explained through detailed characterization by means of elemental analysis, FTIR spectroscopy and SEM. Moreover, the procedures can be effectively scaled up, and the solvent can be easily recovered. As well as, the prominent features (high strength, good flexibility etc.) of the polyacrylonitrile fiber are very attractive for fixed-bed reactors in the chemical industry. This journal is
Synthesis and crystal structure of 3-(4′-nitrophenyl)iminocoumarin, and cyclization reaction mechanism based on DFT calculation
Zhang, Chao-Zhi,Li, Shi-Juan,Cao, Hui,Song, Ming-Xia,Kong, Qing-Gang
, p. 1 - 6 (2015)
A convenient method was reported to synthesize 3-(4′-nitrophenyl)iminocoumarin by a cyclization reaction following a Knoevenagel reaction of 2-hydroxybenzaldehyde with 4-nitrophenylacenitrile in an ethanol solution. Piperidine or piperazine was employed r
Novel synthesis of bis-iminocoumarins
Ammar,Abid,Le Bigot,El Gharbi
experimental part, p. 799 - 810 (2012/01/17)
Reaction of 3-aryl iminocoumarins with diacid chlorides as C-electrophilic reagents under mild conditions novel bis-iminocoumarins in good yields. When the reaction was performed with alkylene dibromides by heating them in toluene in the presence of IRA 9