Synthesis, Reactions resonance, Reactivity and uses of naphthalene, Anthracene, Phenanthrene, naphthol, Anthraquinone and phenanthroquinone, diphenyl methane and triphenyl methane
Synthesis, Reactions resonance, Reactivity and uses of naphthalene, Anthracene, Phenanthrene, naphthol, Anthraquinone and phenanthroquinone, diphenyl methane and triphenyl methane
This presentation includes all the preparations and reactions of various Polynuclear hydrocarbons as naphthalene, Phenanthrene, anthracene,diphenylmethane,triphenylmethane and their derivatives.This is made by the b Pharmacy 2 year students of Gurunanak College of Pharmacy Nagpur as a group activity which focussed on student participation.
Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons) are hydrocarboz—
organic compounds containing only carbon and hydrogen—that are composed of
multiple aromatic rings (organic rings in which the electrons are delocalized). Formally, the class
is further defined as lacking further branching substituents on these ring structures. Polynuclear
aromatic hydrocarbons (PNAs) are a subset of PAHs that have fused aromatic rings, that is, rings
that share one or more sides.
The simplest such chemicals arenaphthalene, having two aromatic
rings, and the three-ring compounds anthracene and phenanthrene.
POLYNUCLEAR HYDROCARBON : STRUCTURE AND USES OF NAPHTHELENE, ANTHRACENE,DI-PH...RishikaBehere1
Hello everyone, we the students of Gurunanak College of Pharmacy, Nagpur have created a presentation of subject pharmaceutical organic chemistry -2 of third semester, Unit 4 : polynuclear hydrocarbons . This presentation was made for the purpose of better understanding of the topic structure and medicinal uses of naphthelene , anthracene, diphenylmethane , triphenylmethane , phenanthrene and their derivatives . This portion covers topics like structure, properties , and medicinal uses of polynuclear hydrocarbons such as naphthelene , anthracene , di-phenylmethane, tri-phenylmethane , phenanthrene and their respective derivatives.
Introduction of poly-cyclic compounds, resonance, molecular orbital structure, physical properties, preparation, reaction and uses of napthalene, anthracene, phenanthrene, napthaquinone, napthol, napthylamine, 9,10 anthraquinone and phenanthrequinone.
This presentation includes all the preparations and reactions of various Polynuclear hydrocarbons as naphthalene, Phenanthrene, anthracene,diphenylmethane,triphenylmethane and their derivatives.This is made by the b Pharmacy 2 year students of Gurunanak College of Pharmacy Nagpur as a group activity which focussed on student participation.
Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons) are hydrocarboz—
organic compounds containing only carbon and hydrogen—that are composed of
multiple aromatic rings (organic rings in which the electrons are delocalized). Formally, the class
is further defined as lacking further branching substituents on these ring structures. Polynuclear
aromatic hydrocarbons (PNAs) are a subset of PAHs that have fused aromatic rings, that is, rings
that share one or more sides.
The simplest such chemicals arenaphthalene, having two aromatic
rings, and the three-ring compounds anthracene and phenanthrene.
POLYNUCLEAR HYDROCARBON : STRUCTURE AND USES OF NAPHTHELENE, ANTHRACENE,DI-PH...RishikaBehere1
Hello everyone, we the students of Gurunanak College of Pharmacy, Nagpur have created a presentation of subject pharmaceutical organic chemistry -2 of third semester, Unit 4 : polynuclear hydrocarbons . This presentation was made for the purpose of better understanding of the topic structure and medicinal uses of naphthelene , anthracene, diphenylmethane , triphenylmethane , phenanthrene and their derivatives . This portion covers topics like structure, properties , and medicinal uses of polynuclear hydrocarbons such as naphthelene , anthracene , di-phenylmethane, tri-phenylmethane , phenanthrene and their respective derivatives.
Introduction of poly-cyclic compounds, resonance, molecular orbital structure, physical properties, preparation, reaction and uses of napthalene, anthracene, phenanthrene, napthaquinone, napthol, napthylamine, 9,10 anthraquinone and phenanthrequinone.
Organic chemistry has two main divisions. One division deals with aliphatic (fatty) compounds, the first compounds you encountered in Organic Chemistry I. The second division includes the aromatic (fragrant) compounds, of which benzene is a typical example
Woodward Feiser Rules -Calculation of absorbtion maximum for conjugated dienes and trienes - for unsaturated carbonyl compounds - benzene and its derivatives
Phenomics assisted breeding in crop improvementIshaGoswami9
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be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
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ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
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Toxic effects of heavy metals : Lead and Arsenicsanjana502982
Heavy metals are naturally occuring metallic chemical elements that have relatively high density, and are toxic at even low concentrations. All toxic metals are termed as heavy metals irrespective of their atomic mass and density, eg. arsenic, lead, mercury, cadmium, thallium, chromium, etc.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
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Exposé invité Journées Nationales du GDR GPL 2024
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
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11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
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This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
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Monitor common gases, weather parameters, particulates.
1. 1 | P a g e
Preparation of Naphthalene derivatives
1. Naphthols
a) Preparation of Naphthols:
There are 2 isomeric naphthols
i) Fusion of naphthalene-1-sulphonic acid with NaOH gives 1-naphthol or -naphthol
ii) Similarly fusion of naphthalene-2-sulphonic acid with NaOH gives 2-naphthol or
-naphthol.
iii) Pure 1-naphthol is prepared by heating 1-naphthyl amine with dil.H2SO4 at 300oC
under pressure.
2. 2 | P a g e
Reactions of naphthols
i) Electrophilic substitution reactions:
They undergo halogenation, nitration, sulphonation, etc.
ii) They reduce ammonical silver nitrate (Tollen’s reagent)
iii) Reduction : They are reduced by sodium and isoamyl alcohol to yield
tetrahydronaphthols.
iv) Reaction with nitrous acid: They react with nitrous acid to form monoximes like
resorcinol or phloroglucinol.
Similarly -naphthol forms -Naphthaquinone-1-oxime
3. 3 | P a g e
v) Oxidation: They are oxidised by alkaline permanganate to phthalonic acid.
-Naphthol is oxidised to -naphthaquinone by chromic acid.
Prepared by
Dr. A. Syed Mohamed
HoD and Senior Assistant Professor, Research Dept. of Chemistry
Sadakathullah Appa College (Autonomous)
Tirunelveli, Tamilnadu, India. asm2032@gmail.com
The author ackowledges Prof. H. Kassali Rahmathullah, Dr. T. Syed Ismail, Dr. M.
Kamalutheen, Former Professor, Dept. of Chemistry, Sadakathullah Appa College for their
valuable contribution.