Synthesis of N-heterocyclic compounds over zeolite molecular sieve catalysts: an approach towards green chemistry

Kandepi, V. V. Krishna Mohan; Narender, Nama

doi:10.1039/c2cy00162d

Cited by 48 publications

(31 citation statements)

References 175 publications

(153 reference statements)

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“…In the fine-chemistry field, among many other applications, 62 H-MFI zeolites are applied to produce substituted pyridines. 136 La-H-ZSM-5 is used as a catalyst of a new process allowing the selective synthesis of diethanolamine (DEA) from ethylene oxide and ammonia. 137 H-MFI zeolite can also be applied as heterogeneous acid catalyst in water phase.…”

Section: Zsm5 (H-mfi)mentioning

confidence: 99%

Zeolites and Other Structurally Microporous Solids as Acid–Base Materials

Busca¹

2014

Heterogeneous Catalytic Materials

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Section: Zsm5 (H-mfi)mentioning

confidence: 99%

Zeolites and Other Structurally Microporous Solids as Acid–Base Materials

Busca¹

2014

Heterogeneous Catalytic Materials

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“…Nuclear magnetic resonance (NMR) spectra were recorded on a Bruker DRX-400 AVANCE instrument (400 and 100 MHz for 1 H and 13 C, respectively) in dimethyl sulfoxide (DMSO)-d 6 and CDCl 3 as solvent. Chemical shifts (d) are given in parts per million (ppm) relative to tetramethylsilane (TMS), and coupling constants (J) are reported in hertz (Hz).…”

Section: Instrumentationmentioning

confidence: 99%

“…Many organic reactions involve catalysts dispersed on an inert support, e.g., silica, metals, metal oxides, alumina, clays, and zeolites, as a heterogeneous system in aqueous media to occur efficiently. Heterogeneous catalysts possess many advantages, including low cost, tolerance of wide ranges of temperatures and pressures, easy and inexpensive removal from the reaction mixture by filtration or centrifugation, easy and safe disposal, safe storage, long lifetime, and ecofriendly nature in comparison with homogeneous ones [6]. Zeolite-based solid acid catalysts are potentially attractive because of the easy removal of substrate/ product, catalyst recycling, and possible regioselectivity due to their constraining environment [7].…”

Section: Introductionmentioning

confidence: 99%

Nano Fe/NaY zeolite: an efficient and reusable solid-supported catalyst for synthesis of 1-oxo-hexahydroxanthene and tetraketone derivatives

2015

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Nano Fe/NaY zeolite with high loading of Fe ions was successfully synthesized by the ion-exchange technique at ambient temperature. The prepared Fe/NaY was characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller (BET) surface area measurements, and Fourier-transform infrared (FT-IR) spectroscopy. The data analyses confirm the presence of iron oxide (up to 32.8 %) with average diameter of 30-40 nm on the surface of NaY zeolite. The catalytic activity of nano Fe/NaY zeolite was examined in the preparation of 1-oxo-hexahydroxanthene and tetraketone derivatives. The results showed its applicability as a green, reusable, and promising catalyst for organic synthesis. This protocol demonstrates several notable advantages including short reaction times, environmentally friendly conditions, no necessity for extraction or chromatographic purification steps, more convenient workup, high yields of products, and lack of use of any injurious solvents. The catalyst was recovered and reused up to four consecutive times without significant loss in catalytic activity.Electronic supplementary material The online version of this article (

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“…In the last decade, many review articles have been published on one-pot heterocyclic synthesis [15][16][17][18][19]. Yet, no review has covered a range of metal-free one-pot procedures for the synthesis of nitrogen-containing heterocycles such as aziridines, azetidines, and azepines together with five-and six-membered heterocycles.…”

Section: Introductionmentioning

confidence: 99%

Transition metal-free one-pot synthesis of nitrogen-containing heterocycles

et al. 2015

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One-pot heterocyclic synthesis is an exciting research area as it can open routes for the development of otherwise complex transformations in organic synthesis. Heterocyclic compounds show wide spectrum of applications in medicinal chemistry, chemical biology, and materials science. These heterocycles can be generated very efficiently through highly economical and viable routes using one-pot synthesis. In particular, the metal-free one-pot synthetic protocols are highly fascinating due to several advantages for the industrial production of heterocyclic frameworks. This comprehensive review is devoted to the transition metal-free one-pot synthesis of nitrogen-containing heterocycles from the period 2010-2013.

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Synthesis of N-heterocyclic compounds over zeolite molecular sieve catalysts: an approach towards green chemistry

Cited by 48 publications

References 175 publications

Zeolites and Other Structurally Microporous Solids as Acid–Base Materials

Zeolites and Other Structurally Microporous Solids as Acid–Base Materials

Nano Fe/NaY zeolite: an efficient and reusable solid-supported catalyst for synthesis of 1-oxo-hexahydroxanthene and tetraketone derivatives

Transition metal-free one-pot synthesis of nitrogen-containing heterocycles

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