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65 articles for “ethyl acetate”
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Synthesis of Novel Series of Coumarin Derivatives
Abstract: In a synthetic method similar to Knoevenagel reaction, 3-acetyl coumarin was prepared in the same way through a cyclization condensation reaction betweensalicylaldehyde and ethyl acetoacetate under basic condition using piperidine. Hence, 3-acetyl coumarin as a starting material was reacted with bromine in ether using a Lewis acid as a reactioncatalyst to produce the corresponding α–bromoaceyl cromen-2-one derivative. In application ofHantzsch synthesis, the reaction of α–bromoaceyl cromen-2-one with thioacetamide in ether …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 1, 2021 · pp. 1–8 Read article
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Parametric Analysis on Pulsating Heat Pipes
Abstract: Day-by-day the size of the electronic components is being drastically decreased, but at the same time the computing capacities are improved manifold. This presents a new challenge in the thermal management of these components. Pulsating Heat Pipes (PHP) can transport warmth for considerable distances leading to placement of condenser away from compact cabinets. From the literature, it is observed that Acetone, Ethanol and Distilled water are the most widely used …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 1, 2017 · pp. 38–43 Read article
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“High Melatonin Milk”- Milk with Intrinsic Health Benefit
Abstract: Melatonin C13H16N2O2 (molecular weight: 232) or N-acetyl-5-methoxytryptamine, is chemically an indoleamine and derived from the essential amino acid tryptophan. It is a hormone and due to secretion from pineal gland, it is also called as active pineal factor. Its IUPAC name is N-[2-(5-methoxy-1H-indol-3-yl)ethyl] acetamide. The indole ring acts as the chromophore showing maximum absorbance at 223 nm, and the functional groups contribute to its fluorescence property. Lerner et al. 1959 …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 5, Issue 1, 2016 · pp. 13–16 Read article
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Quantitative Mass Balance Modelling for the Synthesis and Production of Ten High-Volume Insecticides
Abstract: This study presents a detailed quantitative mass balance analysis for the industrial synthesis and production of ten high-volume insecticides: acequinocyl, acetamiprid, acynonapyr, alpha-cypermethrin, benzpyrimoxan, bifenazate, bifenthrin, bistrifluron, broflanilide, and bromofos, focusing on material flows, process efficiencies, and environmental implications. These compounds, spanning diverse chemical classes like neonicotinoids, pyrethroids, and meta-diamides, are essential for crop protection but pose challenges due to resource-intensive syntheses and waste generation. For each insecticide, standardized manufacturing …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 36–55 Read article
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In vitro Antioxidant Activity and Phytochemical Analysis of Different Polar Solvent Extracts Obtained from Zanthoxylum rhetsa (Roxb) Bark
Abstract: This study was carried out to evaluate the phytochemical and antioxidant effectiveness of methanolic extract and different fractions (n-butanol, ethyl acetate, chloroform and n-hexane) of Z. rhetsa bark. Phytochemical activity of Zanthoxhylum rhetsa (Roxb) bark extract alkaloids, flavonoids, tannins, steroids, saponins and antraquinones was carried out. Antioxidant scavenging enzyme profile assays were done and profiles were developed for validation. The results indicated that bark extract and fractions of Z. rhetsa …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 5, Issue 3, 2015 · pp. 1–7 Read article
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Pharmacological evaluation of Hepatoprotective activity of Indian medicinal plants Cordia Myxa and Canscora diffusa on wistar albino rats
Abstract: Two plants (Cordia myxa and Canscora diffusa), which were claimed to possess hepatoprotective activity, were selected. The Selected plants were authenticated by an expert botanist. In the current study, herbal extraction involving solvents of decreasing polarity (petroleum ether, ethyl acetate, and hydroalcoholic) was used to extract bioactive compounds from the plants of Cordia Myxa and Canscora diffusa in polyherbal preparations. A phytochemical evaluation was performed, including an acute toxicity study …
Published in International Journal of Tropical Medicines · Vol. 2, Issue 1, 2025 · pp. 31–44 Read article
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Excoecaria agallocha Extract from Leaves Encounters Antifungal, Antibacterial, and Cytotoxic Activity – In Vitro Studies
Abstract: Mangroves contain a wide range of bioactive substances, certain of and these have been used as solutions for a variation of conditions for thousands of years. Excoecaria agallocha leaf application components have been extracted in the presence of organic solvents along with water-based with a Soxhlet apparatus and antibacterial research properties employing diffusion agar well assays towards nine different kinds of culture infectious agents, six clinical trials isolated compounds, as …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 15, Issue 2, 2025 · pp. 1–7 Read article
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Design, Synthesis, and Spectroscopic Elucidation of 3-Methyl-1-Phenylpyrazol-5-One: A Cheminformatics-Aided Approach to Heterocyclic Drug Scaffolds
Abstract: Pyrazolone, a notable heterocyclic compound, has drawn increasing interest due to its broad pharmacological profile and structural versatility. The synthesis, characterisation, and biological assessment of new pyrazolone derivatives are examined in this work. A comprehensive review of existing synthetic strategies is presented, emphasizing green and efficient methodologies. Novel derivatives were synthesized using varied starting materials and catalytic systems, followed by structural confirmation through spectroscopic analyses, including NMR, IR, and mass …
Published in International Journal of Cheminformatics · Vol. 3, Issue 1, 2025 · pp. 29–40 Read article
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HPTLC Method Development and Validation for Rabeprazole Sodium in Pharmaceutical Formulation
Abstract: Background: The most common medication for acid related disorders stands as Proton pump inhibitor (PPI) Rabeprazole Sodium. The pharmaceutical formulations require essential quality control of Rabeprazole Sodium through reliable analytical methods to maintain reliability. HPTLC provides a cost-effective rapid method for drug quantification compared to conventional HPLC methods so how HPTLC stands as an appropriate method for drug determination. Objective: The emphasis of this research project involves developing and validating …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 16, Issue 2, 2025 · pp. 18–24 Read article
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Innovative Antifungal strategies: Terbinafine hydrochloride in Niosomal carriers
Abstract: Onychomycosis, an infection caused by fungi that affects fingernails or toenails, causes the nails to grow, separate from the nail bed, and become discoloured. While anybody can get, those with weakened immune systems, children and the elderly are especially susceptible. Present study was related to formulate an effective nail lacquer that would treat onychomycosis by utilizing Terbinafine hydrochloride. In this study, niosomes of a medication called terbinafine hydrochloride, an antifungal …
Published in International Journal of Fungi · Vol. 2, Issue 2, 2025 · pp. 1–16 Read article
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Anti-inflammatory Activity of Leaves Fractions of Traditionally used Medicinal Plants
Abstract: Traditional plants such as Amaranthus spinusus Linn and Abutilon indicum Linn have been used in the Indian traditional system of medicine for the treatment of several diseases such as pain, inflammation, piles, toothache etc. The fractions of ethyl acetate, methanol and ethanol were tested for their anti-inflammatory activity. Ethanolic and methanolic fractions of A. indicum and A. spinusus at the doses of 200 and 400 mg/kg produced highly significant activity. …
Published in Research and Reviews : A Journal of Immunology · Vol. 8, Issue 1, 2018 · pp. 34–36 Read article
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Screening and Characterisation of Antibacterial Actinomycetes Isolated From Earthworm
Abstract: The actinomycetes are considered to be the most potent source for the production of secondary metabolites, antibiotics and other bioactive compounds. The present study dealt with the isolation of the actinomycetes from the earthworm, Eisenia fetida. The actinomycetes were identified using slide culture technique and various biochemical tests. The isolates (S1 and S2) showed activity against Gram positive and Gram negative bacteria in primary screening by perpendicular streak method. In …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 77–84 Read article
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Evaluation of Antibacterial Properties of Guava, Jambolan, Ber, and Lakshmi taru Leaves
Abstract: Plants have always attracted the scientist’s world over as potential agents for various therapeutic activities and they are constantly explored to find out novel therapeutic components. In this regard, the current review summarizes the studies done on certain selected plants to look for their antibacterial properties. The plants selected are Guava (Psidium guajava), Jambolan (Syzygium cumini), Ber (Zizyphus mauritiana), and Lakshmi taru (Simarouba glauca) leaves. Over the years, the antibacterial …
Published in Research and Reviews: A Journal of Toxicology · Vol. 13, Issue 1, 2023 · pp. 26–31 Read article
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Free Radical Scavenging Activity of Zanthoxylum rhetsa (Roxb) DC
Abstract: The leaves of Zanthoxylum rhetsa (Roxb) DC are used in Indian system of medicine. Thepresent study deals with the physicochemical, phytochemical investigation, and in vitroantioxidant activity on various extracts of the plant. The leaf extracts of Z. rhetsa wereprepared with five different solvents such as hexane, chloroform, ethyl acetate, ethanol andwater. The results of this study showed that leaves powder of Z. rhetsa is rich in secondarymetabolites and contain many …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 7, Issue 2, 2017 · pp. 17–26 Read article
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Extraction and Purification of Total Phenolic Content from Combination of Seeds and Peel of Cucurbita
Abstract: Phenolic compounds are belonging to secondary metabolites and played an antioxidant and anti-cancer properties. In the Soxhlet extraction process, the extraction of total phenolic content concentration was 28.0µg/ml obtained from combination of seeds and peel of of Cucurbita at 4 hr. This extract was drawn in to the Column chromatography and its concentration was increased to 34.0µg/ml. The purity of phenolic content was improved by column chromatography at 40 min. …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 9, Issue 1, 2019 · pp. 1–3 Read article
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Studies on Extraction of Bioflavonoids from Seeds of Cucumis melo
Abstract: Cucumis melo belongs to Cucurbitaceae family. It contains high-content of bioflavonoids (quercetin and rutin) and phenolic compounds. It shows various pharmacological activities like anti-cancer, anti-oxidant, anti-ulcer, anti-diabetic, anti-helminthic. In this research, the optimization of physico-chemical parameters like effects of different solvents, solvent percentages, pH, extraction time and particle mesh size for the extraction of bioflavanoids from seeds of Cucumis melo have been studied. For the extraction of quercetin, the optimum …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 11, Issue 3, 2020 · pp. 43–48 Read article
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A Mini-Review on Spectral (UV Visible, FT-IR, 1H NMR, GC-MS) Analysis of Various Shaded Dried Leaves Extracts
Abstract: To collect the different types of leaves in various places, wash collected leaves with distilled water and dried these leaves in various processes like under shade dry for 15 days, place oven (45 oC) for 1 hour. Grind well using the above-dried leaves, so these leaves are changed to powder form. Utilize these shaded dried leaves powder, to prepare extract with solvents like methanol, ethanol, hexane, carbon tetrachloride, petroleum ether, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 1–8 Read article
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Evaluation of Pharmacopoeial and Quality Control Standards of Nelumbo nucifera Gaertn. Seeds
Abstract: ABSTRACTThe seeds of the plant Nelumbo nucifera Gaertn. (Fam: Nymphaeceae) are used against the ailments of poor digestion, enteritis, chronic diarrhea, insomnia and palpitation. In view of its medicinal importance, the present study was conducted to standardize the drug using pharmacognostical, physico-chemical and WHO methods. Microscopical studies show the presence of cotyledonary parenchyma cells filled with starch grains, palisade-like cells and non-lignified thick-walled sclerenchyma cells. TLC of chloroform and alcohol …
Published in Research & Reviews : Journal of Botany · Vol. 1, Issue 2, 2012 · pp. 1–8 Read article
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Antibacterial Activity and Preliminary Phytochemical Screening of the Extracts of the Bark of Moringa oleifera
Abstract: Ethyl acetate, acetone, methanol and aqueous extracts of the bark Moringa oleifera were screened against the enteric pathogens isolates namely, Esherichia coli, Shigella sonnei and Salmonella enteritis. All the extracts other than aqueous extract showed antimicrobial activity with the methanol extract having the percentage of activity. Preliminary phytochemical screening revealed the presence of and tannins in the methanol extract. Keywords: Moringa oleifera, bark, antimicrobial activity, flavones, tannins
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 1, Issue 2, 2014 · pp. 1–4 Read article
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Pharmacognostic and Phytochemical Investigation of Pods of Albizia lebbeck (L.) Benth.
Abstract: Albizialebbeck (L.) Benth. is well known as the medicinal plant in the Ayuerveda, Siddha and Unani system of medicines. The drug isolated from different parts of this plant is used in different sciences of medicines like Unani, Ayuerveda, allopathic, Sidda, naturopathic and homeopathic. The present investigation deals with pharmacognostical and primary phytochemical screening of the pod of Albbizzialebbeck (L.) Benth. The pharmacognostical studies include fluorescence, organoleptic evaluation and physicochemical analysis. …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 6, Issue 1, 2019 · pp. 10–15 Read article