Montmorillonite K 10 Clay Catalyzed Friedlander Synthesis of 1,8‐Naphthyridines in Dry Media under Microwave Irradiation.

Mogilaiah, K.; Sakram, B.

doi:10.1002/chin.200713157

Cited by 6 publications

(7 citation statements)

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“…The yield was about 70-85%. The Schiff bases of 2-aminonicotinaldehyde with ethylene diamine, 1,2-diaminopropane and 1,3-diaminopropane were reported earlier [31]. The Schiff base of 2-aminonicotinaldehyde with trans-cyclohexane-1,2-diamine, 7, was characterized by analysis and spectral data.…”

Section: Preparation Of Schiff's Basesmentioning

confidence: 86%

Synthesis and Spectral Investigation of Co(II), Ni(II), Cu(II) and Zn(II) Complexes with Novel N4 Ligands

Jyothi¹,

Sreedhar²,

Nagaraju³

et al. 2016

Can Chem Trans

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Section: Preparation Of Schiff's Basesmentioning

confidence: 86%

Synthesis and Spectral Investigation of Co(II), Ni(II), Cu(II) and Zn(II) Complexes with Novel N4 Ligands

Jyothi¹,

Sreedhar²,

Nagaraju³

et al. 2016

Can Chem Trans

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“…In some cases, the amount of solvent can be reduced to a few drops, necessary only to moisten the reaction mixture, thereby obtaining high quantities of pure cyclic imides in a matter of hours. 80,86,100,101 Although one advantage of DMF as solvent is its capability to retain water formed during the course of the reaction, hence avoiding the need for a water separator, 102 the employment of molecular sieves can improve the results as is the case of the synthesis of quinolinimides from quinolinic anhydride. 81 Other neutral, acid or basic solvents with different polarity, have proved useful.…”

Section: Scheme 11mentioning

confidence: 99%

Microwave-promoted synthesis of cyclic imides

Perillo¹,

Shmidt²,

Prieto³

et al. 2018

Arkivoc

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Cyclic imides have been extensively investigated because of the wide range of biological activities they exert, as well as due to their importance as synthetic intermediates. Nowadays, focus has been placed on this important class of compounds for their potential new applications, especially in the area of pharmaceutical chemistry. Consequently, the strategies applied for the synthesis of these compounds have attracted considerable attention. Several innovative methodologies have been developed to obtain and functionalize this class of compounds. The use of microwave heating, which is an environmentally harmless strategy, has been making successful inroads in many chemistry areas, such as organic synthesis. Herein we present an update of the microwave-promoted methods for the synthesis of cyclic imides.

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“…They are vermiculite, kaolinite, smectite, and illite. Among these, the most useful solid catalyst for the chemical reaction is smectite clay, called montmorillonite [13]. Montmorillonite nanoclay (MMT) having the molecular formula Mx (Al 2 -xMgx)(Si 4 )O 10 (OH) 2 nH 2 O [14].…”

Section: Introductionmentioning

confidence: 99%

Evaluation on the Activity of Surfactant Immobilized and Metal Cation Exchanged Impregnated Montmorillonite Nanoclays on Oxidation of Benzyl Alcohol

Bhaskar¹,

Surekha

Suma³

2020

Chemistry Africa

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Nanoclay minerals received considerable importance in the field of material applications and organic synthesis because of natural occurrence, greater surface area, good selectivity, ion exchange properties, economical, functional simplicity, easy modification, and environmental acceptability. The eco-friendly liquid-phase oxidation reaction of benzyl alcohol over modified nanoclays such as metal cation exchanged impregnated nanoclays and surfactant immobilized with oxyanions of Cr(VI) and Mn(VII) yields benzaldehyde. Surfactant immobilized (HDTMA-Cr(VI)/Mn(VII)-MMT-nanoclays) and impregnated M n+-MMT-Cr(VI)/Mn(VII)-nanoclays were prepared and the activity of modified nanoclays were studied. The oxidation reactions were carried out by varying the molar mass of the modified nanoclays with active species, reaction period and amount of catalyst on the yield of benzaldehyde. Surfactant immobilized nanoclays were found to be more active than impregnated nanoclays. The percentage yield of the product was calculated using 2,4-dinitrophenylhydrazine derivative. The materials used for this analysis were examined under different characterization techniques like XRD, SEM and TGA. From the XRD spectra was observed that the interlamellar spacing of montmorillonite nanoclay, Al 3+-MMT-nanoclay, HDTMA-Cr(VI)-MMT-nanoclay and HDTMA-Mn(VII)-MMT-nanoclay were 9.81Å, 9.931 Å, 27.6 Å and 28.0 Å respectively. The superficial area of montmorillonite nanoclay has higher than modified nanoclay which was confirmed by SEM images. The TGA analysis stated that the used nanomaterial is thermally stable. The product obtained, benzaldehyde was indicated by TLC and confirmed by spectral studies like FTIR, 1 H NMR and GC-MS. The activity of regenerated modified nanoclays was studied under standard experimental conditions up to the fourth generation. The result of different solvents on the yield of aldehyde was determined. The materials used are naturally occurring, safe to handle, environmentally friendly and reusable.

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Montmorillonite K 10 Clay Catalyzed Friedlander Synthesis of 1,8‐Naphthyridines in Dry Media under Microwave Irradiation.

Abstract: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Cited by 6 publications

References 0 publications

Synthesis and Spectral Investigation of Co(II), Ni(II), Cu(II) and Zn(II) Complexes with Novel N4 Ligands

Synthesis and Spectral Investigation of Co(II), Ni(II), Cu(II) and Zn(II) Complexes with Novel N4 Ligands

Microwave-promoted synthesis of cyclic imides

Evaluation on the Activity of Surfactant Immobilized and Metal Cation Exchanged Impregnated Montmorillonite Nanoclays on Oxidation of Benzyl Alcohol

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