Comparative Study of Microwave Assisted and Conventional Synthesis of Furfuraldehyde Based Hydrazone Derivatives and their Metal Complexes with Biological Evaluation

Jabeen, Mussarat; Mehmood, Karamat; Khan, Misbahul Ain; Nasrullah, Muhammad; Maqbool, Tahir; Jabeen, Farhat; Afzal, Misbah

doi:10.14233/ajchem.2017.20232

Cited by 4 publications

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“…The complex was recovered in 1 min and in 88% yield (Table , entry 1) . Recently, in 2017, microwave syntheses of [Ni(103) 2 ] , [Ni(104)Cl] , [Ni(105)Cl] , and [Ni(106) 2 ] were performed in a few minutes using DMF as the solvent (Table , entries 20–23) …”

Section: Group 10mentioning

confidence: 99%

“…135 Recently, in 2017, microwave syntheses of [Ni (103) 106) 2 ] were performed in a few minutes using DMF as the solvent (Table 7, entries 20−23). 273 Alias et al described the microwave synthesis of mixed phenanthroline and benzothiazole nickel complex 476 (Scheme 141), following the same procedure used for the synthesis of vanadium complex 47 (Scheme 11). After 20 s of microwave irradiation with a few drops of solvent, the desired Ni complex was obtained in 97% yield and was isostructural to the corresponding vanadium complex.…”

Section: Microwave Irradiationmentioning

confidence: 99%

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Alternative Technologies That Facilitate Access to Discrete Metal Complexes

et al. 2019

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Organometallic complexes: these two words jump to the mind of the chemist and are directly associated with their utility in catalysis or as a pharmaceutical. Nevertheless, to be able to use them, it is necessary to synthesize them, and it is not always a small matter. Typically, synthesis is via solution chemistry, using a roundbottom flask and a magnetic or mechanical stirrer. This review takes stock of alternative technologies currently available in laboratories that facilitate the synthesis of such complexes. We highlight five such technologies: mechanochemistry, also known as solvent-free chemistry, uses a mortar and pestle or a ball mill; microwave activation can drastically reduce reaction times; ultrasonic activation promotes chemical reactions because of cavitation phenomena; photochemistry, which uses light radiation to initiate reactions; and continuous flow chemistry, which is increasingly used to simplify scaleup. While facilitating the synthesis of organometallic compounds, these enabling technologies also allow access to compounds that cannot be obtained in any other way. This shows how the paradigm is changing and evolving toward new technologies, without necessarily abandoning the round-bottom flask. A bright future is ahead of the organometallic chemist, thanks to these novel technologies. CONTENTS1. Introduction 7530 2. Technologies 7530 2.1. Grinding and Milling 7530 2.2. Microwave Irradiation 7531 2.3. Ultrasound Activation 7531 2.4. Photochemistry 7532 2.5. Continuous Flow 7532 3. Contribution of Each Technology Compared to Classical Syntheses 7533 4. Lithium and Magnesium 7534 4.1. Mechanochemical Access to Grignard Reagents 7534 4.2. Microwave Irradiation for the Synthesis of Magnesium Complexes 7534 4.3. Ultrasonic Procedures 7535 4.4. Continuous Flow Syntheses 7535 5. Groups 2, 3, 4, and 5 7537 5.1. Mechanochemical Procedures for Complexes of Groups 2, 3, and 4 7537 5.2. Microwave Irradiation for the Synthesis of Vanadium Complexes 7537 5.3. Synthesis of Vanadium Complexes Using Ultrasound 7538 6. Group 6 7538 6.1. Mechanosynthesis of Molybdenum and Chromium Complexes 7538 6.2. Microwave Irradiation for the Synthesis of Group 6 Metal Complexes 7539 6.3. Photochemistry for Synthesis of Group 6 Metal Complexes 7543 6.4. Continuous Flow Chemistry for Synthesis of Chromium Complexes 7545 7. Group 7 7545 7.1. Mechanosynthesis of Rhenium Complexes 7545 7.2. Microwave Irradiation for the Synthesis of Group 7 Metal Complexes 7546 7.3. Photochemical Synthesis of Manganese and Rhenium Complexes 7549 8. Group 8 7550 8.1. Synthesis of Iron and Ruthenium Complexes Using Ball Milling 7550 8.2. Microwave Procedures 7552 8.3. Ultrasonic Irradiation for Iron Complexes 7562 8.4. Syntheses of Iron and Ruthenium Complexes Using Photochemistry 7563 8.5. Continuous Flow Conditions to Prepare Iron and Ruthenium Complexes 7566 9. Group 9 7566 9.1. Synthesis of Cobalt and Rhodium Complexes by Mechanochemistry 7566 9.2. Procedures Using Microwave Irradiation 7569 9.3. Photochemical Synthesis of Iridium Complexes 7...

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Section: Group 10mentioning

confidence: 99%

Section: Microwave Irradiationmentioning

confidence: 99%

Alternative Technologies That Facilitate Access to Discrete Metal Complexes

et al. 2019

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Thermal, spectral and biological characterisation of copper(II) complexes with isoniazid-based hydrazones

Zarafu

Badea

Ioniţă

et al. 2018

J Therm Anal Calorim

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Catalytic Performance of Newly Synthesized Heterocyclic Hydrazone Derivatives For Production of High Yield Neem Biodiesel

Jabeen,

Razzaq,

Noureen

et al. 2024

Journal of the Turkish Chemical Society Section A: Chemistry

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Biodiesel, a sustainable and environmentally friendly substitute for diesel, has attracted growing attention in recent years. The reuse of non-edible neem oil as a feedstock for biodiesel production is affordable and naturally safe. This study aimed to understand the understudied benefits of using heterocyclic organic hydrazone derivatives as catalysts for high yield biodiesel production. The catalysts were characterized using techniques such as EIMS, NMR, CHN and FTIR analysis, which revealed the morphological and functional characteristics of the catalyst. The optimum process conditions were found to be catalyst concentration of 50 mg/10 mL, methanol-to-oil molar ratio of 3:1, reaction temperature of 60 °C, and reaction duration of 60 min; these conditions yielded 95% biodiesel. The produced biodiesel was analyzed using FTIR, and different parameters like moisture content, saponification value, density, acid value, iodine value, and FFA value. The use of neem oil and organic based catalysts for biodiesel production is an economical and environmentally sustainable process.

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Comparative Study of Microwave Assisted and Conventional Synthesis of Furfuraldehyde Based Hydrazone Derivatives and their Metal Complexes with Biological Evaluation

Cited by 4 publications

References 0 publications

Alternative Technologies That Facilitate Access to Discrete Metal Complexes

Alternative Technologies That Facilitate Access to Discrete Metal Complexes

Thermal, spectral and biological characterisation of copper(II) complexes with isoniazid-based hydrazones

Catalytic Performance of Newly Synthesized Heterocyclic Hydrazone Derivatives For Production of High Yield Neem Biodiesel

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