What question did this study set out to answer?

This research aims to understand how different synthesis methods of hierarchical H-ZSM-5 zeolites influence their catalytic activity and product selectivity.

July 8, 2026Petroleum Chemistry

Hierarchical H-ZSM-5 Zeolites for the Synthesis of 1,5-Benzodiazepines: Effects of Porosity on Catalytic Performance

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Authors

СБС. В. Бубеннов NFN. A. Filippova AAA. S. Artem’eva

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Overview

Randomized trial investigates zeolite porosity effects on product selectivity in 1,5-benzodiazepine synthesis, suggesting significant impacts.

Key Points

This research aims to understand how different synthesis methods of hierarchical H-ZSM-5 zeolites influence their catalytic activity and product selectivity.
Examined catalytic activity of H-ZSM-5 zeolites with varying porosity using o-phenylenediamine and ketones.
Compared two preparation methods: alkali followed by acid treatment and direct synthesis of granulated zeolite.
Analyzed factors such as total acidity and reaction pathway based on reaction conditions.
H-ZSM-5h granular zeolite achieved 94% conversion and 83% selectivity in the reaction with acetone.
Total acidity measured at 740 μmol/g with 43% strong acid sites, promoting effective diffusion.
Highest target product yield of 87% was recorded with acetone as the ketone.

Cite This Study

Бубеннов et al. (2026) studied this question.

synapsesocial.com/papers/6a4de93fd2ea289ef6283743 https://doi.org/10.1134/s0965544126600785

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July 8, 2026Petroleum Chemistry

Hierarchical H-ZSM-5 Zeolites for the Synthesis of 1,5-Benzodiazepines: Effects of Porosity on Catalytic Performance

View Full Paper

Ask AI

Bookmark

Authors

СБС. В. Бубеннов NFN. A. Filippova AAA. S. Artem’eva

Discussion

Member takes

Overview

Randomized trial investigates zeolite porosity effects on product selectivity in 1,5-benzodiazepine synthesis, suggesting significant impacts.

Key Points

This research aims to understand how different synthesis methods of hierarchical H-ZSM-5 zeolites influence their catalytic activity and product selectivity.
Examined catalytic activity of H-ZSM-5 zeolites with varying porosity using o-phenylenediamine and ketones.
Compared two preparation methods: alkali followed by acid treatment and direct synthesis of granulated zeolite.
Analyzed factors such as total acidity and reaction pathway based on reaction conditions.
H-ZSM-5h granular zeolite achieved 94% conversion and 83% selectivity in the reaction with acetone.
Total acidity measured at 740 μmol/g with 43% strong acid sites, promoting effective diffusion.
Highest target product yield of 87% was recorded with acetone as the ketone.

Cite This Study

Бубеннов et al. (2026) studied this question.

synapsesocial.com/papers/6a4de93fd2ea289ef6283743 https://doi.org/10.1134/s0965544126600785

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