Effect of H<sub>2</sub>SiF<sub>6</sub> modification of IM-5 on catalytic performance in benzene alkylation with ethylene

Zhai, Yunping; Chen, Junwen; Wang, Yongrui; Luo, Yibin; Shu, Xingtian

doi:10.1039/d1ra02427b

RSC Adv.

2021

DOI: 10.1039/d1ra02427b

|View full text |Cite

Effect of H₂SiF₆ modification of IM-5 on catalytic performance in benzene alkylation with ethylene

Yunping Zhai

Junwen Chen

Yongrui Wang

et al.

Abstract: IM-5 zeolite modified by H2SiF6 has superior activity, equivalent stability, higher DEB selectivity and a lower xylene selectivity in comparison of ZSM-5 with similar Si/Al2 ratio. The process provides a new way to make ethylbenzene in the vapor phase.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2021

2024

Publication Types

Select...

Article3

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Nawaz,

Shah Zaib Saleem

et al. 2024

Adv Synth Catal

View full text Add to dashboard Cite

An environmentally benign route for the synthesis of sulfonamides via Sulfur (VI) Fluoride Exchange (SuFEx) chemistry utilizing N‐methylimidazole, that simultaneously act as a base, precatalyst, HF by‐product scavenger, as well as solvent, is described. This one‐step sulfonamide synthesis exhibits excellent reactivity toward highly electron‐deficient and less nucleophilic anilines as well as aminopyridines while tolerating a wide range of functional groups. In addition to the desired sulfonamide target, we also isolated an ionic salt as the sole side product from the reaction mixture that has been identified as bis[1‐methyl‐1H‐imidazole‐3‐ium] hexafluorosilicate (IV). The glass surface of reaction vessel is acting as the source of silicon present in the isolated side product. Formation of hexafluorosilicate salt is also facilitating the consumption of sulfonyl fluoride for sulfonamide synthesis. Optimization of the reaction under various conditions, as well as the isolation of the bis[1‐methyl‐1H‐imidazole‐3‐ium] hexafluorosilicate (IV) salt, highlight the crucial role of N‐methylimidazole and support the glass‐assisted approach. Besides the first example of glass‐assisted SuFEx catalyzed by benign organic bases, this reaction also offers an alternative route for accessing protic hexafluorosilicate‐based molten salts without employing external HF. The synthetic utility of this SuFEx route for late‐stage functionalization is also demonstrated.

show abstract

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Nawaz,

Shah Zaib Saleem

et al. 2024

Adv Synth Catal

View full text Add to dashboard Cite

show abstract

Analysis of Decisive Structural Parameters and Acidic Property of Zeolites for Gas‐Phase Alkylation of Benzene with Ethylene

et al. 2021

Self Cite

View full text Add to dashboard Cite

The effects of the zeolite structure and acidic property on the activity and selectivity in gas‐phase alkylation of benzene with ethylene were investigated using TUN, IMF, *SFV and MFI with different structures and Si/Al2 ratios. The channels of TUN and IMF provide both higher selectivity to ethylation (ethylbenzene and di‐ethylbenzene) and lower xylene selectivity compared to MFI with slightly smaller pore diameter in which the pore diffusion limitations are suffered. The activity is mainly controlled by zeolite channel architecture. The higher activity and selectivity are obtained using modified TUN and modified IMF with suitable density of Brønsted acidity in a well‐defined channel structure sterically constrained for heavy by‐products. It is shown that the activity and selectivity increase with increasing pore diameter of three‐dimensional 10 ring channel structure, while the rule is not valid for *SFV.

show abstract

Effect of novel Ni2P-loaded catalysts on algal pyrolysis bio-oil

Sweeney

Dai

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Effect of H₂SiF₆ modification of IM-5 on catalytic performance in benzene alkylation with ethylene

Abstract: IM-5 zeolite modified by H2SiF6 has superior activity, equivalent stability, higher DEB selectivity and a lower xylene selectivity in comparison of ZSM-5 with similar Si/Al2 ratio. The process provides a new way to make ethylbenzene in the vapor phase.

Cited by 3 publications

References 43 publications

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Analysis of Decisive Structural Parameters and Acidic Property of Zeolites for Gas‐Phase Alkylation of Benzene with Ethylene

Effect of novel Ni2P-loaded catalysts on algal pyrolysis bio-oil

Contact Info

Product

Resources

About

Effect of H2SiF6 modification of IM-5 on catalytic performance in benzene alkylation with ethylene

Abstract: IM-5 zeolite modified by H2SiF6 has superior activity, equivalent stability, higher DEB selectivity and a lower xylene selectivity in comparison of ZSM-5 with similar Si/Al2 ratio. The process provides a new way to make ethylbenzene in the vapor phase.

Cited by 3 publications

References 43 publications

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Sulfur (VI) Fluoride Exchange (SuFEx) via Glass–Assisted Organocatalysis

Analysis of Decisive Structural Parameters and Acidic Property of Zeolites for Gas‐Phase Alkylation of Benzene with Ethylene

Effect of novel Ni2P-loaded catalysts on algal pyrolysis bio-oil

Contact Info

Product

Resources

About

Effect of H₂SiF₆ modification of IM-5 on catalytic performance in benzene alkylation with ethylene