Mortar-Pestle and Microwave Assisted Regioselective  Nitration of Aromatic Compounds in Presence of Certain Group V and VI Metal Salts under Solvent Free Conditions

Sana, Sariah; Reddy, K. Rajendar; Rajanna, K. C.; Venkateswarlu, M.; Ali, M. M.

doi:10.4236/ijoc.2012.23032

Cited by 5 publications

(2 citation statements)

References 45 publications

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“…Characterization using 1 H-NMR produced 9 signals from the Schiff base compound 1-{4 -[(4-hydroxy-3methoxy-benzylidene) -amino] -phenyl)-ethanone. Then in the chemical shift of 8.4722 ppm, there is a signal that shows the protons in the imine group [12]. Besides the signal from 1-{4 -[(4-hydroxy-3-methoxy-benzilidene)amino]-phenyl)-ethanone compounds on that spectra also found signals from reactants.…”

Section: Characterization Using 1 H-nmrmentioning

confidence: 87%

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Ma’rufah¹,

Hanapi²,

Ningsih³

et al. 2021

Advances in Social Science, Education and Humanities Research

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Schiff bases can be synthesized by reacting Vanillin and p-aminoacetophenone using a natural acid catalyst such as lime juice (Citrus aurantifolia.) with the grinding method. The purposes of this study were to determine the characterization. The yield of synthesized compounds calculated and also determined the physical properties such as color and melting point. The product also characterized using NaOH reaction. Further characterization was carried out using FTIR and 1 H-NMR. The synthesized compound is a yellow solid, slightly soluble in water, and has a melting point of 160-162 ⁰C. The Mass obtained is 1,9459 g, with a percentage yield of 94,45%. The compound 1-{4 -[(4-hydroxy-3-methoxybenzylidene) -amino] -phenyl) -etanone reacts with NaOH to form a bright yellow color. This compound has an imine bond (-C = N-), which showed in the wavenumber 1583 cm -1 . 1 H-NMR characterization showed a typical chemical shifting of HC = N-at 8,5 ppm. The inhibition efficiency of these compounds ranged from 23,11-86,16%.

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Section: Characterization Using 1 H-nmrmentioning

confidence: 87%

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Ma’rufah¹,

Hanapi²,

Ningsih³

et al. 2021

Advances in Social Science, Education and Humanities Research

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“…The use of metal catalysts and molecular frameworks such as zeolites 7 , clayfen, claycop and clayzic 8 , metal nitrates 9 , and solvent-free reactions 10 were being explored as possible procedure towards green chemistry and regioselectivity of the nitration reaction. Another method is the microwave-promoted nitration, which uses nitrate salts, less corrosive acids, proceeds by a rapid reaction time, with recorded high regioselectivity and higher product yield 11,12 .…”

Section: Brief Communicationmentioning

confidence: 99%

Microwave-Assisted Synthesis of Para-Nitrophenol Using Calcium Nitrate

Buan

Duldulao

2021

Orient. J. Chem

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Conventional process of nitrating phenolic compounds involves the use of excess corrosive reagents that impose environmental threats. Rapid and environmentally friendly microwave-assisted nitration of phenol has been employed to limit the use of corrosive nitric acid and sulfuric acid. In this study, phenol is reacted to calcium nitrate and acetic acid, which served as nitrating agents. The solution is irradiated under microwave to complete the nitration process. This microwave-assisted- synthesis is a rate- enhanced process that showed complete nitration in a short reaction time of 1 min with a high yield of 89%. Bands of phenyl ring, OH, CO, and nitro groups observed in the FTIR spectra correspond to the vibration modes of para-nitrophenol. GCMS analysis showed a retention time of 7 min for the product with 139m/z base peak with matches that confirms the synthesis of para- nitrophenol. This microwave-assisted method can be employed as an efficient, environmentally safe, and rapid alternative nitration method for the synthesis of para-nitrophenol.

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Microwave-Assisted Sol–Gel Synthesis Of Metal Oxide Nanomaterials

Garadkar

Kadam

Park

2016

Handbook of Sol-Gel Science and Technology

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The main goal of this chapter is to fill the gap in contemporary literature on the basic scientific aspects of microwave-assisted sol-gel technique. In this chapter, we shall briefly consider the microwave-assisted sol-gel method adopted for the preparation of metal oxide nanoparticles with controlled particle size, morphology, and crystal structure. Now a days researchers are motivated by an advantages

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Mortar-Pestle and Microwave Assisted Regioselective Nitration of Aromatic Compounds in Presence of Certain Group V and VI Metal Salts under Solvent Free Conditions

Cited by 5 publications

References 45 publications

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Synthesis of Schiff Base Compounds from Vanillin and p-Aminoacetophenone Using Lime Juice as a Natural Acid Catalyst and Their Utilization as Corrosion Inhibitors

Microwave-Assisted Synthesis of Para-Nitrophenol Using Calcium Nitrate

Microwave-Assisted Sol–Gel Synthesis Of Metal Oxide Nanomaterials

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