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.
Acidity of Phenols/OC -II PCI Syllabus/Effect of substituents on acidity of phenols
Hi dear students, in this video I had explained about acidity of Phenols and Effect of substituents on acidity of phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
factors affecting acidity of phenols?
Pka of phenols?
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Benzilic acid rearrangement. The benzilic acid rearrangement is formally the 1,2-rearrangement of 1,2-diketones to form α-hydroxy–carboxylic acids using a base. This reaction receives its name from the reaction of benzil with potassium hydroxide to form benzilic acid.
THIS PRESENTATION COVER INTRODUCTION, STRUCTURE, AROMATICITY, RESONANCE, BASICITY, PHYSICAL PROPERTIES, SYNTHESIS, CHEMICAL PROPERTIES AND MEDICAL USES OF PYRIDINE AND PYRIMIDINE
Phenols/OC -II PCI Syllabus/preparation of Phenols/ Sources of Phenols/Qualit...yasar qazi
Phenols/OC -II PCI Syllabus/preparation of Phenols/ Sources of Phenols/Qualitative tests of Phenols
Hi dear students, in this video I had explained about Phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
Sources of phenols?
Naming of phenols?
qualitative tests of phenols?
Please do subscribe Online ustaad and share this video to as many as possible.
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Reactions of Phenols: https://youtu.be/XJSoCTewg3U
Acidity of Phenols : https://youtu.be/hOh8x_YCsHM
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IT INCLUDES HOW A SURFACTANT MOLECULE BEING DISTRIBUTED AT A LIQUID SURFACE/INTERFACE
ALSO EXPLAINS THE STRUCTURE OF A SURFACTANT MOLECULE AND HOW IT WILL B ORIENTED IN BOTH POLAR AND NON POLAR LIQUIDS
EXPLAIN CRITICAL MICELLAR CONCENTRATION AND ITS IMPORTANCE
MICELLE FORMATION AND STRUCTURE OF MICELLE
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.
Acidity of Phenols/OC -II PCI Syllabus/Effect of substituents on acidity of phenols
Hi dear students, in this video I had explained about acidity of Phenols and Effect of substituents on acidity of phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
factors affecting acidity of phenols?
Pka of phenols?
Please do subscribe Online ustaad and share this video to as many as possible.
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Qualitative analysis of fats and oils
https://youtu.be/WXO6Ggdjwvo
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independence day status 2020 :https://youtu.be/0w7uq4bigFY
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Benzilic acid rearrangement. The benzilic acid rearrangement is formally the 1,2-rearrangement of 1,2-diketones to form α-hydroxy–carboxylic acids using a base. This reaction receives its name from the reaction of benzil with potassium hydroxide to form benzilic acid.
THIS PRESENTATION COVER INTRODUCTION, STRUCTURE, AROMATICITY, RESONANCE, BASICITY, PHYSICAL PROPERTIES, SYNTHESIS, CHEMICAL PROPERTIES AND MEDICAL USES OF PYRIDINE AND PYRIMIDINE
Phenols/OC -II PCI Syllabus/preparation of Phenols/ Sources of Phenols/Qualit...yasar qazi
Phenols/OC -II PCI Syllabus/preparation of Phenols/ Sources of Phenols/Qualitative tests of Phenols
Hi dear students, in this video I had explained about Phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
Sources of phenols?
Naming of phenols?
qualitative tests of phenols?
Please do subscribe Online ustaad and share this video to as many as possible.
Online Ustaad
https://www.youtube.com/channel/UCzCN5UTEjFAtCBtrcNOWbyA
Reactions of Phenols: https://youtu.be/XJSoCTewg3U
Acidity of Phenols : https://youtu.be/hOh8x_YCsHM
you can also see
Is torrent downloading safe : https://youtu.be/vHjtNnXGztA
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independence day status 2020 :https://youtu.be/0w7uq4bigFY
how to make you tube cover photo : https://youtu.be/k32Z-lXE7hc
How to cut a music file in 2 minutes :https://youtu.be/2wjfCOfOGGk
Keep watching your own channel online ustaad and give me your suggestions in comment box.
if you find this video helpful then like it, share it and subscribe online ustaad for more helpful & informational videos.
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#pcisyllabus #organicchemistry #pharmacy #pci #onlineustaad #tutorial #neetpreparation #bpharmacy #ugguide #bpharmacy3rdsem #pharmacytutorials
IT INCLUDES HOW A SURFACTANT MOLECULE BEING DISTRIBUTED AT A LIQUID SURFACE/INTERFACE
ALSO EXPLAINS THE STRUCTURE OF A SURFACTANT MOLECULE AND HOW IT WILL B ORIENTED IN BOTH POLAR AND NON POLAR LIQUIDS
EXPLAIN CRITICAL MICELLAR CONCENTRATION AND ITS IMPORTANCE
MICELLE FORMATION AND STRUCTURE OF MICELLE
PEGylated magnetic nanoparticles (PEG@Fe3O4) as cost effectivealternative for...Pawan Kumar
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PEGylated magnetic nanoparticles (PEG@Fe3O4) as cost effectivealternative for...Pawan Kumar
tAn efficient, cost effective and environmental friendly PEGylated magnetic nanoparticle catalyzed oxida-tive cyanation via CH activation of tertiary amines to corresponding -aminonitriles using hydrogenperoxide as oxidant and sodium cyanide as cyanide source is described. The synthesized nanocatalyst waseasily recovered with the help of external magnet and was successfully reused for several runs withoutany significant loss in catalytic activity.
Introduction to benzene, orbital picture, resonance in benzene, Huckel‟s rule
Reactions of benzene - nitration, sulphonation, halogenation- reactivity, Friedel- Craft‟s alkylation- reactivity, limitations, Friedel-Craft‟s acylation.
Substituents, effect of substituents on reactivity and orientation of mono substituted benzene compounds towards electrophilic substitution reaction.
1. Introduction
2. History of benzene
3. Nomenclature
4. Orbital structure
5. Kekule structure
6. Resonance structure
7. Resonance energy and stability 8. Structural evidence
9. Synthetic evidence
10. Analytical evidence
11. Aromaticity and huckle rule
12. Method of preparation of benzene
13. Electrophilic substitution of benzene
14. Classification of substituent 15. Directive effect : Ortho and para director, meta director
16. Reaction of monosubstituted benzene
17. Effect of Substituents on reactivity and orientation of monosubstituted benzene towards electrophilic substitution 18. Structure and uses of BHC,DDT, Saccharine and chloramine
The class of organic compounds characterized by hydroxyl (-OH) group attached to an aromatic ring. Phenol is commonly known as carbolic acid. Phenols are aromatic components which contain one or more hydroxyl groups that are attached to an aromatic ring. Phenol is a benzene derivative and it consists of a phenyl bonded to a hydroxyl (-OH) group. General chemical formula of phenol is C6H5OH and molecular formula C6H6O.
Phenol is a monohydroxy derivative of benzene prepared by the replacing of one of the hydrogen of benzene by hydroxyl group. Phenol contain two part one part is aryl group (phenyl) and other is hydroxyl group.
On the basis of number of hydroxyl group bonded to benzene. It can be classified into di, tri, tetra hydroxyls benzene.
Woodward Feiser Rules -Calculation of absorbtion maximum for conjugated dienes and trienes - for unsaturated carbonyl compounds - benzene and its derivatives
Toxic effects of heavy metals : Lead and Arsenicsanjana502982
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the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
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
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
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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.
1. 1 | P a g e
PHENANTHRENE
Phenanthrene is an angular polynuclear aromatic hydrocarbon isomeric with
anthracene.
Synthesis of phenanthrene
a) Phenanthrene is obtained by passing di-benzyl through a red-hot tube.
b) It may also be obtained by cyclodehydrogenation of 2, 2’ - dimethyl diphenyl.
c) Haworth synthesis:
Phenanthrene is prepared from naphthalene by Haworth synthesis as follows.
2. 2 | P a g e
Reactions of phenanthrene
i) Pheanthrene can be reduced by sodium and isoamyl alcohol or copperoxide and
chromic acid to 9, 10-dihydrophenanthrene. Its oxidation with sodium dichromate and
sulphuric acid yield 9,10-phenanthraquinone.
ii) It adds on bromine to give 9, 10-dibromophenanthrene and its ozonolysis yields
diphenic acid.
3. 3 | P a g e
iii) It also undergoes electrophilic substitution. It undergoes Friedel-Crafts reaction
mainly at position 3. On nitration it gives 3-nitrophenanthrene and on bromination it
gives 9-bromophenanthrene.
Structure of phenanthrene
1) The molecular formula of phenanthrene is C14H10 .
2) It is isomeric with anthracene.
3) On oxidation it gives phenanthraquinone which on further oxidation gives diphenic
acid.
4) Diphenic acid on decarboxylation gives diphenyl.
5) Hence phenanthrene must contain the following skeleton.
4. 4 | P a g e
6) On closing the middle ring and filling the hydrogen to satisfy the valencies of
various carbon atoms phenanthrene gets the following structure.
7) Evidence in support of the above structure of phenanthrene:
It gives five monosubstitution and twenty five disubstitution derivatives.
8) Resonance concept:
Phenanthrene is a resonance hybride of the following five contributing structures.
The existence of resonance in phenanthrene is proved by the following facts.
a) Resonance energy of phenanthrene is 387 kJ/mole.
b) Phenanthrene is a flat molecule.
5. 5 | P a g e
c) X-ray diffraction studies show that all the (C-C) bonds in phenanthrene are not
equivalent. C1-C2 has 3/5 double bond character. C2 - C3 has 2/5 double bond
character and C9 - C10 has 4/5 double bond character.
9) Finally the sturcutre of phenanthrene is proved by Haworth synthesis:
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.