Granulated hierarchical zeolites − novel pathways for utilizing bio-1,2-propanediol in the synthesis of practically important N-heterocycles

IF 4.8 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials Pub Date : 2024-12-30 DOI:10.1016/j.micromeso.2024.113478

A.S. Artem'eva, N.G. Grigoreva, O.S. Travkina, S.V. Bubennov, D.V. Serebrennikov, B.I. Kutepov

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Abstract

In this paper, the catalytic properties of novel granulated hierarchical (micro-meso-macroporous) zeolites H-Y_h and H-ZSM-5_h in the reaction of aniline and bio-1,2-propanediol are investigated. The influence of shape selectivity, textural and acid characteristics of zeolites on their activity and selectivity in the above reaction is shown. For the first time it was established that zeolite H-Y_h was the most effective for obtaining 2-methyl-3-n-propyl-1H-indole 1 (yield 52 %), while 3,4-dimethyl-1-phenyl-1H-pyrrole 2 was obtained predominantly over zeolite H-ZSM-5_h (yield 54 %). The conditions for compounds 1 and 2 with the maximum yield were determined. Possible pathways of the obtaining products are proposed, with consideration to the type, concentration and strength of acid sites, as well as the structural features of zeolites.

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来源期刊

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.