Kinetic Investigation of the Reaction between Triphenylphosphine, Dialkyl Acetylenedicarboxylate, and Carbazole by the UV Spectrophotometry Technique

Habibi‐Khorassani, Sayyed Mostafa; Maghsoodlou, Malek Taher; Ebrahimi, Ali; Roohi, Hossein; Zakarianezhad, Mohammad; Dasmeh, Hamid Reza; Moradian, Majid

doi:10.1080/10426500500326446

Cited by 21 publications

(1 citation statement)

References 19 publications

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“…Numerous kinetic investigations over a large area of different NH-acids or SH-acid have previously been reported using the UV technique. [24][25][26][27][28][29][30][31][32] Herein we wish to describe a kinetic investigation of the ylide reaction in the presence of OH-acid. In addition, an "atoms in molecules" (AIM) analysis at the HF/6-31G level of theory has been performed in order to gain a better understanding of the most geometrical parameters of both the Z-4(a, c) and the E-4(a, c) phosphorus ylides.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

et al. 2010

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Kinetic studies were made for the reaction between triphenylphosphine, di-tert-butyl acetylenedicarboxilate in the presence of OH-acid, such as 2-hydroxy-4-methoxybenzaldehyde. To determine the kinetic parameters of the reaction, it was monitored by UV spectrophotometery. The second order fits were automatically drawn by the software associated with a Cary UV spectrophotometer model Bio-300 at appropriate wavelength. The values of the second order rate constant (k 2 ) were calculated using standard equations within the program. At the temperature range studied the dependence of the second order rate constant (ln k 2 ) on reciprocal temperature was in a good agreement with Arrhenius equation. This provided the relevant plots to calculate the activation energy of the reaction. Furthermore useful information was obtained from studies of the effect of solvent and concentration of reactants on the rate of reaction. Proposed mechanism was confirmed according to the obtained results and steady state approximation and first step (k 2 ) of reaction was recognized as a rate-determining step on the basis of experimental data. In addition, assignment of more stable isomers (Z or E) was investigated using the theoretical study.

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Section: Introductionmentioning

confidence: 99%

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

et al. 2010

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Phosphorus Ylides and Related Compounds

2019

Organophosphorus Chemistry

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Cu@Fe₃O₄/SiO₂@MWCNTs promoted green synthesis of novel bis‐1,4‐dihydropyridines and evaluation of biological activity

Azizi,

Amiri,

Ghambarian

et al. 2024

Applied Organom Chemis

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This study examined the investigation of one‐pot multicomponent reactions of actylacetone, 4‐hydroxy‐3‐methoxybenzaldehyde, primary amines, and activated acetylenic compounds in an aqueous medium at room temperature in the presence of catalytic amounts of Cu@Fe3O4/SiO2@MWCNTs. The responses that were employed As a result, high‐yielding bis‐1,4‐dihydropyridines and other novel compounds can be produced. Diphenyl‐picrylhydrazine (DPPH) radical trapping is being used in this field of study to examine the antioxidant characteristics of some bis‐1,4‐dihydropyridines that are produced. Scholarly research now underway has concentrated on examining the antibacterial characteristics of chemical substances that have been produced. The bis‐1,4‐dihydropyridines was synthesized by an experimental procedure that demonstrated several notable features, such as rapid reaction kinetics, substantial product yields, and effortless separation of the catalyst from the reaction mixture.

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Kinetic Investigation of the Reaction between Triphenylphosphine, Dialkyl Acetylenedicarboxylate, and Carbazole by the UV Spectrophotometry Technique

Cited by 21 publications

References 19 publications

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

Phosphorus Ylides and Related Compounds

Cu@Fe₃O₄/SiO₂@MWCNTs promoted green synthesis of novel bis‐1,4‐dihydropyridines and evaluation of biological activity

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Kinetic Investigation of the Reaction between Triphenylphosphine, Dialkyl Acetylenedicarboxylate, and Carbazole by the UV Spectrophotometry Technique

Cited by 21 publications

References 19 publications

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

Kinetics and Mechanism Investigation of the Reaction between Triphenylphosphine, Di‐tert‐butyl Acetylenedicarboxilate and OH‐Acid

Phosphorus Ylides and Related Compounds

Cu@Fe3O4/SiO2@MWCNTs promoted green synthesis of novel bis‐1,4‐dihydropyridines and evaluation of biological activity

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Product

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About

Cu@Fe₃O₄/SiO₂@MWCNTs promoted green synthesis of novel bis‐1,4‐dihydropyridines and evaluation of biological activity