Europhtal: An industrial cobalt phthalocyanine complex as the efficient catalyst for synthesis of thioamides by one‐pot reaction of mercaptans and amines

Zarinderakht, Nasser; Abbasi, Mohammad; Nowrouzi, Najmeh

doi:10.1002/aoc.6709

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…Herein, we report an efficient and green micellar-assisted protocol for the transformations of thiols to disulfides and thioamides under mild conditions in water (Scheme 1, eqn (3)). Compared to similar studies 30 that have been reported (Scheme 1, eqn (1) and (2)), our system is milder, greener and cleaner with no transition metal required. Besides, both disulfides and thioamides can be obtained in moderate to excellent yields with a high level of tolerance of various functional groups.…”

Section: Introductionsupporting

confidence: 63%

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

et al. 2023

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Section: Introductionsupporting

confidence: 63%

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

et al. 2023

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“…It has to be noted that the SCoPc complex is often found in waste water since it is an industrial catalyst widely used in oil refineries and natural gas processing to remove mercaptans. , Therefore, the proposed synthesis strategy offers an additional advantage of shooting two hawks with one arrowenabling simultaneous preparation of hybrid catalysts and the elimination of SCoPc from wastewater (Figure b). Nevertheless, we would like to point out that other components may also exist in the real wastewater.…”

Section: Resultsmentioning

confidence: 99%

Closed-Loop Synthesis of Highly Dispersed Cobalt Phthalocyanine Catalysts for Efficient CO₂ Electroreduction

Kong,

Zou,

Jiang

et al. 2024

ACS Sustainable Resour. Manage.

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Electrochemical CO 2 reduction offers a promising path to transform excessively emitted CO 2 into valuable products. However, the lack of sustainable access to effective catalysts hampers the practical applications of this important process. Herein, we report a closed-loop synthesis strategy to fabricate a type of hybrid catalysts based on multiple-round adsorption of cobalt phthalocyanine onto carbon black from a dilute solution. This strategy allows for recycling and reuse of all the reagents involved in the synthesis, which not only minimizes the waste production but also reduces the catalyst cost significantly. Furthermore, the strategy enables catalyst synthesis at gram scale with remarkable reproducibility and is universal for catalyst synthesis starting from metal phthalocyanines with different functional groups. More importantly, we show that it is possible to integrate the preparation of effective hybrid catalysts with the elimination of metal phthalocyanine pollutants from wastewater. Benefiting from the highly dispersed cobalt sites, the hybrid catalysts exhibit good performance for electrochemical CO 2 reduction. Specifically, a large current density of 250 mA cm −2 , a high Faradaic efficiency of 99%, and an excellent turnover frequency of 2.0 × 10 5 h −1 for CO production can be achieved in the flow cell. This study demonstrates the great potential of the closed-loop strategy for sustainable, scalable, and cost-effective synthesis of efficient catalysts for CO 2 valorization, contributing to the mitigation of climate change.

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Preparation of Mesoporous Silica Nanostructure Functionalized With Hydrobenzoin Substituted Phthalocyanine and Its Catalytic Performance in Benzyl Alcohol Oxidation

Gök,

Arlı,

Gök

et al. 2024

Applied Organom Chemis

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In this study, a new mesoporous silica nanostructure functionalized with hydrobenzoin substituted cobalt (II) phthalocyanine (MCM‐41‐CoPc) was prepared by grafting first 3‐chloropropyltriethoxysilane (CPTES) and then peripherally hydrobenzoin substituted cobalt (II) phthalocyanine (CoPc) onto mesoporous silica nanomaterial (MCM‐41). The structural properties of heterogeneous catalyst MCM‐41‐CoPc were elucidated by FT‐IR, XRD, TEM, EDS, TGA, solid‐state UV–Vis and N2 sorption analyses. The catalytic performance of MCM‐41‐CoPc was investigated in the oxidation of benzyl alcohol to benzaldehyde. To find the best catalytic conditions for aldehyde selectivity, the effect of the different parameters such as temperature, reaction time, oxidant, solvent, amount of the substrate, and oxidant on the catalytic activity of MCM‐41‐CoPc was investigated in detail. The selective oxidation of benzyl alcohol to benzaldehyde in the presence of MCM‐41‐CoPc was achieved with high aldehyde selectivity (98%) and moderate conversion (57%). The reusability of MCM‐41‐CoPc was tested in three consecutive cycle and no catalytic activity loss was observed. Additionally, it has been determined that the product selectivity can be controlled depending on the type of reaction solvent. When ethyl acetate was used as the solvent, 98.5% conversion rate and 96% benzoic acid selectivity were obtained.

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Europhtal: An industrial cobalt phthalocyanine complex as the efficient catalyst for synthesis of thioamides by one‐pot reaction of mercaptans and amines

Cited by 4 publications

References 29 publications

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

Closed-Loop Synthesis of Highly Dispersed Cobalt Phthalocyanine Catalysts for Efficient CO₂ Electroreduction

Preparation of Mesoporous Silica Nanostructure Functionalized With Hydrobenzoin Substituted Phthalocyanine and Its Catalytic Performance in Benzyl Alcohol Oxidation

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Europhtal: An industrial cobalt phthalocyanine complex as the efficient catalyst for synthesis of thioamides by one‐pot reaction of mercaptans and amines

Cited by 4 publications

References 29 publications

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

An efficient and green procedure for transformation of thiols to disulfides and thioamides in AGA8 aqueous micelles

Closed-Loop Synthesis of Highly Dispersed Cobalt Phthalocyanine Catalysts for Efficient CO2 Electroreduction

Preparation of Mesoporous Silica Nanostructure Functionalized With Hydrobenzoin Substituted Phthalocyanine and Its Catalytic Performance in Benzyl Alcohol Oxidation

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Closed-Loop Synthesis of Highly Dispersed Cobalt Phthalocyanine Catalysts for Efficient CO₂ Electroreduction