Explain Aromaticity in Anthracene, Phenanthrene, furan and naphthalene?

Q: Explain, by using words and structures, why when aniline is added to acetic anhydride and AlCl3…

A: Aniline does not undergo Friedel Crafts reaction using AICl3.

Q: Explain how pyrrole is isoelectronic with the cyclopentadienyl anion

A: Isoelectronic means different molecular compounds having the same number of valence electrons.…

Q: Name and Draw the structures of all possible chemical (Electrophilic aromatic substitution)…

A: Friedel craft alkylation of styrene is as follows.

Q: Which one of these molecules can be a reactant in a Friedel-Crafts reaction? and why? a) Aniline…

A:

Q: Why the reaction of phenol and ICl does not yield 4-chlorophenol but 4-iodophenol only?

A: Generally, phenol is acidic due to the presence of partial positive charge on O atom due to…

Q: Why does phenol or aniline react with benzene diazonium chloride during a coupling reaction, but…

A: It can be easily explain by  with help of mechanism. In case of phenol and aniline the benzene ring…

Q: Give Reasons for the following:   Aniline does not undergo Friedel-Crafts reaction. þ methylaniline…

A: (1)  Aniline does not undergo Friedel-Crafts reaction.A Friedel-Crafts reaction is carried out in…

Q: Show how the aniline can be prepared from benzene:

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Q: Friedel–Crafts acylation of the individual isomers of xylene with acetyl chloride and aluminum…

A: The structure of the products is given in the attached image.

Q: Aniline reacts with bromine in the absence of a Lewis acid to give monosubstitution products. Draw a…

A: Electrophilic aromatic substitution reactions are those reactions in which replacement of positively…

Q: Draw the structures of the diene and dienophile that would be used in the diels alder reaction to…

A: As you have posted multiple questions in a single request, we will solve the first part for you. To…

Q: two positions of anthracene sometimes react more like polyenes thanlike aromatic compounds.(a) Draw…

A: In case of anthracene, C9 and C10 involve in the diels-alder reaction.

Q: Draw all the Kekulé structures of anthracene and phenanthrene.

A: Concept introduction: The structure of benzene consists of carbon atoms arranged in a hexagon with…

Q: Cyclopropenones are described as having aromatic character. How would you account for this, given…

A: Yes , Cyclopropenones are aromatic . Because according to huckel rule these follow (4n+2) π e-  rule…

Q: Outline a reasonable synthesis of 4-nitrophenyl phenyl ether from chlorobenzene and phenol.

A: First, the nitration of chlorobenzene is done to synthesize the mixture of nitrated products as…

Q: Aromatic substitution can be done on naphthalene. Treatment of naphthalene with concentrated H2SO4…

A: The two compounds are 1-naphthalenesulfonic acid and 2-naphthalenesulfonic acid. The sulfonation of…

Q: Explain why the ratio of reactants of Nitration of Bromobenzene and reactants of friedel-crafts…

A: Nitration is the reaction of introducing a nitro group into the ring. This is an example of…

Q: 5Thiamin, or vitamin B1, contains a positively charged five-membered nitrogen–sulfur heterocycle…

A: The structure of Thiamine or vitamin B1 is To explain, thiazolium ring is aromatic: NOTE that the…

Q: Describe two synthetic routes for the preparation of p-methoxyaniline from benzene.

A: Nitration Process of attaching nitro group to the molecule is called as nitration reaction.…

Q: Aromatics can be converted into nitroaromatics upon treatment with a mixture of nitric and sulfuric…

A:

Q: 2. State the two main experiments that were used to establish the extra stability of the benzene…

A:

Q: Explain why fluorobenzene is more reactive than chlorobenzene toward electrophilic aromatic…

A: The benzene undergoes an electrophilic substitution reaction. The substituent which increases the…

Q: Outline the synthesis of each compound from benzene, toluene or alcohol of a smaller carbon and any…

A: Applying concept of reagents and reaction.

Q: Treatment of ethyl mercaptan with hydrogen peroxide gives a product with sulfur atoms.

A: Ethyl mercaptan also known as ethanethiol. It's Molecular formula is C2H5SH while structural formula…

Q: Which of the following are consistent with the requirements for aromaticity? I. A system with…

A: Criteria for Aromaticity The molecule is cyclic (a ring of atoms) The molecule is planar (all atoms…

Q: Define Inscribed Polygon Method for Predicting Aromaticity ?

A: To predict whether a compound has π electrons completely filling bonding MOs, we must know how many…

Q: explain why the thiazolium ring is aromatic?

A: Structure of Thiazolium ring =

Q: Does a Diels Alder reaction between 2-furfural and N-methylmaleimide in Acetonitrile (solvent)…

A:

Q: What do you mean by Enantioselective hydrogenation ? Why it is used ?

A: Enantioselective is also known as asymmetric, and Enantioselective hydrogenation is the…

Q: ) Specifically, what is the difference between the cyclopentadienyl anion and pyrrole?

A: Pyrrole is an organic compound with the molecular formula C4H4NH and cyclopentadienyl anion is also…

Q: a) Describe using chemical equation the preparation of the following compound b) Discuss the effect…

A: This compound is prepared by the reaction of thiophene with 1 Bromo naphthalene in the presence of…

Q: Comment on the pKa of picric acid and explain why it is so acidic compared to phenol.

A: Given acids are :  a). Picric acid  b). Phenol  Why picric acid is more acidic than phenol = ?

Q: Explain why butadiene sulfone was used in the Diels-Alder reaction with maleic anhydride? Why is…

A:

Q: Please explain Frost Circles for aromatic systems and how they can be used to explain the stability…

A: A question to describe about Frost circles for aromatic systems.

Q: 10 Discuss the aromaticity of the below compounds? Explain which compound is aromatic, why?

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Q: Is the following compound aromatic? Explain the reasons for your answer?

A: Aromatherapy can be decided by checking three basic steps: I) all carbon atoms are sp2 hybridised.…

Q: what is the difference between the cyclopentadienyl anion and pyrrole?

A: These two compounds are aromatic compounds. The cyclopentadiene is unusually acidic because loss of…

Q: Friedel-Crafts acylation of p-xylene,

A:

Q: Discuss the stability of keto-enol tautomer formed by active methylene compounds?

A:

Q: Name and Draw the structures of all possible chemical (Electrophilic aromatic substitution)…

A: The Acylation reaction of organic compounds forms the ketones. This is the main purpose of the…

Q: Discuss the aromaticity in pyrrole furone and thiophene

A: Huckel’s rule states that based on the number of pi electrons, planar, monocyclic, and conjugated…

Q: Describe the reactions with mechanisms; Sulphonation, Acylation and Addition of Halogen with…

A: Benzene supports electrophilic substitution reaction and sulphonation, acylation, and halogenation…

Q: How would you convert the benzene into cinnamic acid?

A:

Q: Give reasons for the following : (a) Furan has a diene character. (b} C-3 position of indole is more…

A: a) Furan has a diene character Furan is a planar, unsaturated five-membered ring molecule. it is…

Q: Furan, pyrrole and thiophene are sald to be aromatic. How are they different from corresponding…

A: In this question, we have to find out the correct answer of given problem by the help of the…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.