Kinetics of the formation of hemicyanine dyes by the condensation of Fischer's base aldehyde with anilines

Gáspár, Costinela-Laura; Bâldea, Ioan; Panea, Ioan

doi:10.1016/j.dyepig.2005.01.008

Cited by 4 publications

(1 citation statement)

References 24 publications

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“…Aniline is a primary aromatic amine that is recognized to be an essential precursor in the production of isocyanates, 1 azo dyes 2,3 and rubbers. 4 As a result, aniline effluents are widely generated and discharged into the environment.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous carbon nitride as a metal-free catalyst for the removal of aniline

Sam

Tiong

Lintang³

et al. 2015

RSC Adv.

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Mesoporous carbon nitride (MCN) was used for the first time as a thermal catalyst for the removal of aniline. While bulk carbon nitride (BCN) and mesoporous silica (MCM-41) did not show any catalytic activities, the MCN showed aniline removal (33%) at 398 K. It was revealed that the much higher activity of the MCN originated from the presence of mesoporosity and suitable adsorption sites for the reaction to occur.The nature of aniline adsorption on MCN was found to fit well to the Freundlich adsorption model. The evidence on the interactions between aniline and MCN was supported by fluorescence and FTIR spectroscopies. It was suggested that the interactions between MCN and aniline involved both weak p to p stacking and strong hydrogen bonding, which were important to initiate the catalytic removal of aniline.

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Section: Introductionmentioning

confidence: 99%

Mesoporous carbon nitride as a metal-free catalyst for the removal of aniline

Sam

Tiong

Lintang³

et al. 2015

RSC Adv.

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Principles for the Design of Fluorescent Dyes

Pham

2022

Principles of Molecular Probe Design and Applications

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Predicting Rate Constants for Nucleophilic Reactions of Amines with Diarylcarbenium Ions Using an ONIOM Method

Zhang

Wang

et al. 2010

Chinese Journal of Chemical Physics

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The rate constants of the nucleophilic reactions between amines and benzhydrylium ions were calculated using first-principles theoretical methods. Solvation models including PCM, CPCM, and COSMORS, as well as different types of atomic radii including UA0, UAKS, UAHF, Bondi, and UFF, and several single-point energy calculation methods (B3LYP, B3P86, B3PW91, BHANDH, PBEPBE, BMK, M06, MP2, and ONIOM method) were examined. By comparing the correlation between experimental rate constants and the calculated values, the ONIOM(CCSD(T)/6-311++G(2df,2p):B3LYP/6-311++G(2df,2p))// B3LYP/6-31G(d)/PCM/UFF) method was found to perform the best. This method was then employed to calculate the rate constants of the reactions between diverse amines and diarylcarbenium ions. The calculated rate constants for 65 reactions of amines with diarylcarbenium ions are in agreement with the experimental values, indicating that it is feasible to predict the rate constant of a reaction between an amine and a diarylcarbenium ion through ab initio calculation.

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Kinetics of the formation of hemicyanine dyes by the condensation of Fischer's base aldehyde with anilines

Cited by 4 publications

References 24 publications

Mesoporous carbon nitride as a metal-free catalyst for the removal of aniline

Mesoporous carbon nitride as a metal-free catalyst for the removal of aniline

Principles for the Design of Fluorescent Dyes

Predicting Rate Constants for Nucleophilic Reactions of Amines with Diarylcarbenium Ions Using an ONIOM Method

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