Influence of –SO3H functionalization (N-SO3H or N-R-SO3H, where R=alkyl/benzyl) on the activity of Brönsted acidic ionic liquids in the hydration reaction

Kore, Rajkumar; Srivastava, Rajendra

doi:10.1016/j.tetlet.2012.04.066

Cited by 65 publications

(40 citation statements)

References 27 publications

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“…3. The stabilization energy values and acidic O H bond distance of the [35,36]. FTIR characterization data also supports the theoretically obtained acidity order of the ILs, i.e.…”

Section: Structure Of Ilssupporting

confidence: 84%

Mechanistic insights into solvent induced alkylation of p-cresol with tert-butyl alcohol using Brönsted acidic ionic liquids

Patra

Parveen

Upadhyayula

2017

Molecular Catalysis

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“…3. The stabilization energy values and acidic O H bond distance of the [35,36]. FTIR characterization data also supports the theoretically obtained acidity order of the ILs, i.e.…”

Section: Structure Of Ilssupporting

confidence: 84%

Mechanistic insights into solvent induced alkylation of p-cresol with tert-butyl alcohol using Brönsted acidic ionic liquids

Patra

Parveen

Upadhyayula

2017

Molecular Catalysis

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“…Ionic liquids (ILs) have been attracting considerable attention in recent times due to their unique properties, such as lack of measurable vapor pressure, non‐flammability, catalytic activity, and recyclability 21–24. Recent research showed that thermal degradation of monocationic ionic liquids occurs at temperature below 473 K 25.…”

Section: Textural Characteristics Of Beta Samples Prepared Using Dcilsmentioning

confidence: 99%

Synthesis of Dicationic Ionic Liquids and their Application in the Preparation of Hierarchical Zeolite Beta

Kore

Satpati

Srivastava

2011

Chemistry A European J

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Piperidine- and imidazole-based dicatoinic ionic liquids have been developed for the synthesis of zeolite Beta. Hierarchical Beta has a larger surface area and pore volume than conventional Beta. Beta derived from a dicationic ionic liquid exhibited remarkably higher catalytic activity than the conventional Beta. Experimental evidence and DFT calculations suggest that only a suitable conformation of such dicationic ionic liquids is able to form zeolite Beta (see scheme).

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“…[9][10][11][12][13][14][15][16] A unique green chemical approach for increasing the efficiency of a catalytic process is to carry out more than one catalytic transformation in a 'one-pot' process without isolating any of the intermediates. [22][23][24][25][26][27][28] It is possible to develop ionic liquid and zeolite based multi-functional catalysts but due to their easy recovery and efficient recycling, zeolite based bi-functional catalysts were developed for tandem reactions in this study. [17][18][19][20][21] The design of a suitable multi-functional catalyst is the key for a successful tandem reaction.…”

Section: Introductionmentioning

confidence: 99%

“…Surface silanol groups present at large external surface of nanocrystalline/hierarchical zeolites are required for the development of multi-functional catalysts. [40][41][42][43][44] The objective of this study was to design and develop nanocrystalline ZSM-5 based bi-functional catalysts for two steps and three steps tandem reactions. [33][34][35][36][37][38] Top-down and bottom-up approaches were used to prepare such zeolite materials.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline ZSM-5 based bi-functional catalyst for two step and three step tandem reactions

2015

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A Pd nanoparticle decorated nanocrystalline ZSM-5 catalyst was prepared for one-pot tandem reactions. The catalyst was characterized by the complementary combination of X-ray diffraction, N 2 -adsorption, electron microscopy, and NH 3 -temperature programmed desorption techniques. The catalyst was investigated in the one-pot tandem conversion of benzyl alcohol to 1,3-diphenyl-3-(phenylamino)propan-1-one, (E)chalcone, and 2,3-dihydro-1,5-benzothiazepine. 1,3-Diphenyl-3-(phenylamino)propan-1-one and (E)chalcone were prepared by two step tandem reactions from benzyl alcohol, whereas 2,3-dihydro-1,5benzothiazepine was prepared by a three step tandem reaction from benzyl alcohol. A recycling study shows that no significant decrease in the catalytic activity was observed even after three recycles. To the best of our knowledge, this is the first report which deals with such a simple route to prepare 2,3-dihydro-1,5-benzothiazepines in a one-pot tandem methodology from benzyl alcohol.

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Influence of –SO3H functionalization (N-SO3H or N-R-SO3H, where R=alkyl/benzyl) on the activity of Brönsted acidic ionic liquids in the hydration reaction

Cited by 65 publications

References 27 publications

Mechanistic insights into solvent induced alkylation of p-cresol with tert-butyl alcohol using Brönsted acidic ionic liquids

Mechanistic insights into solvent induced alkylation of p-cresol with tert-butyl alcohol using Brönsted acidic ionic liquids

Synthesis of Dicationic Ionic Liquids and their Application in the Preparation of Hierarchical Zeolite Beta

Nanocrystalline ZSM-5 based bi-functional catalyst for two step and three step tandem reactions

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