Papers by Nitin A Mirgane
viii) Indigoid Dyes: Indigo* (from aniline + monochloroacetic acid)
ix) Phthalocyanine Dyes: M... more viii) Indigoid Dyes: Indigo* (from aniline + monochloroacetic acid)
ix) Phthalocyanine Dyes: Monastral Fast Blue B
iv) Diphenylmethane dye: Auramine O* (from N,N-dimethyl aniline)
v) Triphenylmethane dye: Diamin... more iv) Diphenylmethane dye: Auramine O* (from N,N-dimethyl aniline)
v) Triphenylmethane dye: Diamine series: Malachite Green* (from benzaldehyde)
b) Triamine series: Acid Magenta
c) Phenol series: Rosolic acid
vi) Heterocyclic Dyes:
a) Thiazine dyes: Methylene Blue
b) Azine dyes: Safranin T* (from o-toluidine)
Natural and Synthetic Dyes Natural Dyes: Definition and limitations of natural dyes. Examples an... more Natural and Synthetic Dyes Natural Dyes: Definition and limitations of natural dyes. Examples and uses of natural dyes w.r.t Heena, Turmeric, Saffron, Indigo, Madder, Chlorophyll –names of the chief dyeing material/s in each natural dye [structures not expected], Synthetic dyes: Definition of synthetic dyes, primaries and intermediates. Important milestones in the development of synthetic dyes – Emphasis on Name of the Scientist, dyes and the year of the discovery is required. (structure is not expected)
3.1.1 Nomenclature or abbreviations of commercial dyes with at least one example
3.1.1 Naming o... more 3.1.1 Nomenclature or abbreviations of commercial dyes with at least one example
3.1.1 Naming of dyes by colour index (two examples) used in dye industries
Phytochemical Study and Screening of Antioxidant, Anti-inflammatory Typhonium Flagelliforme
Research Journal of Pharmacy and Technology
Typhonium flagelliforme from the family Araceae is very rare plant. It is very good curative and ... more Typhonium flagelliforme from the family Araceae is very rare plant. It is very good curative and work against various illness and infections. The plant part has large importance in Ayurveda. In this study we use stem and leaves used for phytochemical analysis and their biological properties such as Antioxidant and Anti-inflammatory activity. Known Protocol for the phytochemical analysis, while antioxidant and anti-inflammatory activity was determined using known methods. Both the leaves and stem extract show presence of various important active constituent and shows better activity against the free radicals or antioxidant activity or they can show the anti-inflammatory activity.
Antioxidant capacity of Pimpinella wallichiana
International Journal of Botany Studies, 2020
Degradation of the industrial dye using the nanoparticles synthesized from flowers of plant Ceropegia attenuata
Materials Today: Proceedings, 2021
Abstract Now days the industrial growth is very fast. Large number of new compounds are synthesiz... more Abstract Now days the industrial growth is very fast. Large number of new compounds are synthesized daily. Most of these dyes are the azo dyes used in the fabric, plastic, medicine industry very largely. These dye industries create lot of pollution by discharging the waste into the water body. So, as to decrease this pollution level it become necessary to discharge the industrial waste water by treatment. For this degradation is very important process, for degradation we have developed the simple nano catalyst from the flowers of plant Ceropegia attenuata. The synthesized nanoparticles are characterized by different techniques. These nanoparticles can easily degrade the dyes by the UV/Sun light depend on the intensity. These dyes can easily degrade. We have studied the example of the Methylene Blue dye.
Materials Today: Proceedings, 2020
The nanoscience is emerging field of the science and technology. In nanoscience research synthesi... more The nanoscience is emerging field of the science and technology. In nanoscience research synthesizing green nanoparticles using green protocols are very good, effective technique, quite safe and ecofriendly technique compared to the conventional chemical and physical methods. These are used in the various field of science. These are used in the catalysis. Theses green and bio-based route for the preparation of the nanoparticles has good attention in the organic synthesis. These nano catalysts used for synthesis of heterocyclic compound. Imidazole and their derivatives are widely used. The imidazole and its derivatives are very important heterocyclic compounds. They have very good biological and pharmaceutical activity. In this we have prepared plant assisted tin oxide nanoparticles from the leaves of Ceropegia jainii plant by the green methods. The synthesized nanoparticles are characterized by various methods of analysis. These synthesized plants assisted nanoparticles are used for the synthesis of the heterocycles. We have developed the simple and highly efficient three component such as benzil, aromatic aldehyde and ammonium acetate under the microwave irradiation without any solvent. This reaction gives the 2,4,5-triarylimidazole derivatives with good yield and purity. This method is very simple and cost effective. Nano catalyst are green and recyclable with very less reaction time.
Materials Today: Proceedings, 2020
Waste water treatment is major issue in urban and rural area. For this it requires various cataly... more Waste water treatment is major issue in urban and rural area. For this it requires various catalyst which are costly. We have developed simple method for the synthesis of zinc oxide nanoparticles using waste Pineapple peels. Waste pericarp contain various phytochemicals which serve as reducing agent as well as the capping agent. The synthesized plant nanoparticles are characterized by the various analytical methods such as X-ray diffraction, FTIR, UV-Visible transmission electron microscopy, X-ray spectroscopy. The synthesized nanoparticles show good purity, good size. Synthesized nanoparticles are used for the treatment of the textile effluent by assessing the turbidity and conductivity, Chemical oxygen demand (COD), total dissolved solid (TDS), dissolved oxygen (DO), total suspended solid, this analysis indicate that this plant assisted nanoparticles play important role in the purification of water.
Materials Today: Proceedings, 2021
Industrial Development takes place in this century very fastly. During this development nobler of... more Industrial Development takes place in this century very fastly. During this development nobler of colors and dyes are used. These dyes are responsible for the various pollution like water, soil and other pollution. Mostly the industrial water was discharged into rivers, pods and other water bodies. To overcome this problem, it become necessary to remove these dyes from the industrial discharge. One of the solutions is that the industrial effluent must be treated before the discharge into other water bodies. We have developed the activated charcoal from the fruit peel of plant Hydnocarpus pentandra and used for the adsorption of Methylene Blue dye. Its activated charcoal shows the excellent adsorption for Methylene Blue dye. Around 90-95% of the dyes gets adsorbed over it. Thus, simple method from the of the fruit peel was developed. This is low cost, easy to prepare and have good efficiency. This may be used for the adsorption of various dyes.
Plant Science Today, 2021
In the world industries are growing very rapidly resulting in fast development. Various industrie... more In the world industries are growing very rapidly resulting in fast development. Various industries are coming up such as that of dyes, paints, pharmaceuticals etc. Dyes are used in various industries and release pollutants in the environment. It is necessary to remove such pollutants from the environment. Euphorbia neriifolia L. grow as the weed in the forests of the konkan region in waste land area. This weed is a typical latex bearing plant. This latex can be converted into the powder under sun drying process. This powder can be used for the preparation of Fe nanoparticles. The plant assisted synthesized nanoparticles have good particle size, morphology and band gap. These nanoparticles used for the degradation of the dye like Methylene Blue and Methylene Red from the industrial waste. It gives very good results. We can develop new catalyst for the degradation of the dyes from the industrial waste. It act as good catalyst by the simple non form of the catalyst. This catalyst is de...
Highly efficient magnetically separable Zn-Ag@l-arginine Fe3O4 catalyst for synthesis of 2-aryl-substituted benzimidazoles and multicomponent synthesis of pyrimidines
Results in Chemistry
In the present work, we have synthesized twenty (20) Zn(II) and Ni(II) ion ternary complex with f... more In the present work, we have synthesized twenty (20) Zn(II) and Ni(II) ion ternary complex with fluoroquinolone drug (Norfloxacin (NOR)) as primary ligand and-proline, L-glycine, L-alanine, L-histidine, L-arginine, L-threonine, L-valine, L-methionine, L-tryptophan, L-lysine , L-leucine, L-tyrosine, L-cysteine amino acid (AA) as the secondary ligand. Initial characterization studies have been done by elemental analysis to get information on the percent composition of C, H, N, O, S elements and metal, while UV-Visible spectroscopy shows the effect of metal chelation on the different inter-ligand transitions. Magnetic moment confirms the diamagnetic and paramagnetic behaviour of Zn (II) complexes and Ni (II) because there are all paired and two unpaired electrons are present in the outer orbital of the central zinc and nickel metal ion respectively. So the Zn and Ni metal shows +2 oxidation state in all synthesized complexes. While IR studies confirm the presence of all functional grou...
Photoluminescence in anthracene and it’s derivatives
Sterically Congested Chiral 7,8-Dioxa[6]helicene and Its Dihydro Analogues: Synthesis, Regioselective Functionalization, and Unexpected Domino Prins Reaction
European Journal of Organic Chemistry, 2015
ABSTRACT A C2-symmetric 7,8-dioxa[6]helicene-2,13-diol was synthesized from readily available 2,7... more ABSTRACT A C2-symmetric 7,8-dioxa[6]helicene-2,13-diol was synthesized from readily available 2,7-dihydroxynaphthalene on a gram scale. A high-yielding synthetic strategy for the regioselective hydroxymethylation at the sterically most hindered C1 position of diol analogues was investigated. The dioxa[6]helicene backbone with configurationally stable helical enantiomers was synthesized, and these enantiomers were separated by HPLC on a chiral stationary phase. We also observed an unexpected domino Prins reaction. This is the first report of a domino Prins reaction occurring on a helicene. Along with the high-yielding regioselective functionalization of dioxa[6]helicene analogues, the synthesis of a few cis-7a,14c-dihydro-functionalized helicenoid diols substituted at the sterically most hindered C1 and C14 positions in their racemic forms was explored.
Chiral Ionic Liquid Mediated Diels-Alder Reaction Between Anthrone Enolate and Maleimides
Letters in Organic Chemistry, 2010
Page 1. Letters in Organic Chemistry, 2010, 7, 343-347 343 1570-1786/10 $55.00+.00 © 2010 Bentham... more Page 1. Letters in Organic Chemistry, 2010, 7, 343-347 343 1570-1786/10 $55.00+.00 © 2010 Bentham Science Publishers Ltd. Chiral Ionic Liquid Mediated Diels-Alder Reaction Between Anthrone Enolate and Maleimides ...
Aqueous ethanol: a suitable medium for the diastereoselective Diels–Alder reaction mediated by chiral bases
Green Chemistry Letters and Reviews, 2011
The effect of aqueous ethanol medium on the outcome of a Diels–Alder (DA) reaction with regard to... more The effect of aqueous ethanol medium on the outcome of a Diels–Alder (DA) reaction with regard to yields, reaction time, and the stereoselectivity observed has been studied. When the reaction between anthrone and (R)-(+)-N-α-methylbenzylmaleimide was carried out in aqueous ethanol in presence of achiral base no diastereoselectivity could be obtained. Moderate diastereoselectivity could be achieved in presence of chiral bases.
Asymmetric Diels-Alder reaction involving chiral benzimidazoles as organocatalysts
Chirality, 2011
(S)-(-)-2-(α-hydroxyethyl)-benzimidazole and (S)-(+)-2-(α-hydroxybenzyl)-benzimidazole work as ch... more (S)-(-)-2-(α-hydroxyethyl)-benzimidazole and (S)-(+)-2-(α-hydroxybenzyl)-benzimidazole work as chiral Brønsted bases (BBs) in Diels-Alder reaction between anthrone and maleimides under mild reaction condition. These chiral BBs cause asymmetric induction.
Central European Journal of Chemistry, 2010
Ionic liquids (IL) are gaining importance as green solvents. Imidazolium ionic liquid [bmim]+[Cl]... more Ionic liquids (IL) are gaining importance as green solvents. Imidazolium ionic liquid [bmim]+[Cl]−, an environmentally benign solvent, was found to promote the Diels-Alder reaction between anthrone and maleimides at room temperature with excellent yields. The ionic liquid played a dual role as solvent and catalyst.
Uploads
Papers by Nitin A Mirgane
ix) Phthalocyanine Dyes: Monastral Fast Blue B
v) Triphenylmethane dye: Diamine series: Malachite Green* (from benzaldehyde)
b) Triamine series: Acid Magenta
c) Phenol series: Rosolic acid
vi) Heterocyclic Dyes:
a) Thiazine dyes: Methylene Blue
b) Azine dyes: Safranin T* (from o-toluidine)
3.1.1 Naming of dyes by colour index (two examples) used in dye industries