(iii) State whether you think each of the molecules A to D below is aromatic, anti-aromatic, or non- aromatic. Note that only one resonance form of each compound is drawn. Give your reasoning in each case. NH A в D (iv) Sketch an energy profile for a typical electrophilic aromatic substitution reaction of benzene with an electrophile E*, showing the structures of the reactants, the intermediate and the products.

Q: Show the mechanism, and explain the synthesis for this flavin

A: The mechanism for given Flavin synthesis is described as follows,

Q: (a) Give two reasons to explain why the compound 3a,4,7,7a-tetrahydro-1H-indole, shown below, was…

A: A compound is said to be aromatic if it is  1. Cyclic  2. Planar  3. Fully conjugated  and  4.…

Q: Without using the pKa, write the reaction scheme then decide which direction the reaction be…

A: First we will see the product of this equilibrium reaction.  When two ammonia molecules reacting to…

Q: Prove the aromaticity of the following molecules by discussing w.0.0.0.0 H a) b) d)

A: The aromaticity in organic compounds is defined as the property of cyclic and plant with π- bond in…

Q: An unknown hydrocarbon G, whose formula is C16H26 contains two triple bonds. Ozonolysis followed by…

A: Ozonolysis: Ozonolysis is an organic reaction where the unsaturated bonds of alkenes, alkynes,…

Q: The lone pair of electrons on the indicated N atom in the following structure occupies a_orbital.…

A:

Q: . [10]-Annulene may be represented by the following isomeric structures. (a) Say whether any of…

A:

Q: Borazole, B3N3H6, is an unusually stable cyclic compound. Propose a structure forborazole, and…

A: Structure of borazole: The molecular formula of borazole is B3N3H6. The structure for borazole is…

Q: The reaction of 1-iodopropane with potassium thiocyanate (KSCN) in certain solvents results in the…

A: A. 1-Propene undergo addition reaction with H-SCN via carbocation formation. Due to greater +I and…

Q: Alec wanted to prepare to diene B to use in a subsequent Diels-Alder reaction. He thought he could…

A: (a) Requirement from question: FT-IR data We will take FT- IR of the compound and will compare the…

Q: What structural feature is indicated by the following NMR resonances? a 2-methylpropyl group a…

A:

Q: Give detailed answer- Provide example of compound that fulfil each criteria below. Explain why-…

A: Dear student since it is a multiple subparts questions,  according to bartleby guidlines here i am…

Q: the Draw an orbital correlation diagram for the suprafacial-suprafacial reaction of an allyl species…

A: The interaction of an allyl radical or anion with an olefin at the suprafacial level is thermally…

Q: (b) The following compound (2) is a natural product drug. Using the criteria for aromaticity and…

A:

Q: Which compound I or II is more basic? Justify your answer using orbital "cartoon" diagrams. CH3 CH3…

A: Compound one is more basic than two because lone pair of electrons on nitrogen atom is easily…

Q: NH₂ Br₂ AlBr3 HNO3/H₂SO4 OH NH₂ Br₂ AlBr3 NO2 HNO3/H₂SO4

A:

Q: Predict the electronic configurations of (a) the benzeneanion, (b) the benzene cation. Estimate the…

A: The benzene anion has 7 -electrons and the benzene cation have 5 -electrons. The electronic…

Q: Fill in the lable below with as appropriate to rank tne expected nydrophilicity eac illustrated…

A:

Q: As the extent of electron delocalization into the ring increases, the geometry at nitrogen flattens.…

A: As the extent of electron delocalization into the ring increases, the geometry at nitrogen flattens.…

Q: Using curved arrow formalism, give the mechanism for the following reaction. Be sure to include…

A: Given,

Q: Q5.) Two isomeric aromatic compounds X and Y have the following percentage composition by mass: C =…

A: Molecular formula from percentage composition Convert mass of each atom into moles Find the…

Q: Arrange the following acids in order of increasing acidity when allowed to react with NH3. Provide…

A: According to the Lewis acid-base, the Lewis acid is the one that accepts the pair of electrons due…

Q: 1. Outline the 7 molecular orbitals of the cyclooctatrieneyl dication system (shown below) by…

A: Any compound can be aromatic should follow some rule which given by huckel 's rule for aromaticity .…

Q: Pyrrole undergoes electrophilic aromatic substitution preferentially at the 2 position as…

A:

Q: The following compound can carry out the Diels-Alder reaction ,dilute the structure of the C4H6…

A: A problem based on spectroscopy, which is to be accomplished.

Q: (i) What would you expect to be the order of reactivity from the following pyridine Derivatives…

A: Pyridines do not undergo (ES) electrophilic substitution reactions easily, they can do so when there…

Q: To be aromatic, a molecule must have 4n + 2 n electrons and must have cyclic conjugation.…

A: Aromatic compounds  are closed cyclic and conjugated compounds  which follow Huckel Rule .

Q: For each of the species below, identify any cyclic conjugated system, then: A. Determine the number…

A: The rules for aromatic, anti-aromatic, and non-aromatic is given as,

Q: synthesizing [Pt(py)(NH3)(NO2)Cl] with py and NH3 positioned trans to one another.

A:

Q: Compound E PBr3 Compound A H₂SO4 Heat Compound B (Major) KMnO₂/ H Heat 2-butanone OH + HCN OH…

A: Given reaction cycle is :  Give the missing products and regents and conditions = ?

Q: The second step in an electrophilic aromatic substitution reaction is shown below, with some atoms…

A: In this electrophilic aromatic substitution reaction the Br+ ion act as an electrophile and attacks…

Q: For each of the species below, identify any cyclic conjugated system, then: A. Determine the number…

A: If a cyclic , planner molecules has 4n+2 π electron it is considered as aromatic compounds. If a…

Q: Outline an acceptable step by step mechanism for the Nucleophilic aromatic substitution of…

A: In an aromatic nucleophilic substitution reaction, at first, nucleophile reacts with aromatic…

Q: a. Label the reactive features of the following reactants, select the most reactive feature, then…

A:

Q: BS21008 Organic Chemistry for the Life Sciences Assignment Week 7 Bearing in mind Huckel's rule,…

A:

Q: 2. The carboxyl group on a benzene ring is a(n) (ortho-para or meta) director in electrophilic…

A:

Q: Styrene (vinylbenzene) undergoes electrophilic aromatic substitution much faster thanbenzene, and…

A: The presence of π electron clouds in aromatic compounds results in the electrophilic substitution.…

Q: 1) The ¹H NMR spectra of carvone and the epoxidation product(s) are extremely complicated, so we've…

A: 1H-NMR spectroscopy is used for identification of structure of the unknown compound. With help of…

Q: Complete these electrophilic aromatic substitution reactions. Where you predict meta substitution,…

A: The given electrophilic aromatic substitution reactions to be completed.

Q: give the degree of unsaturation of the compounds: Vanillin(C8H8O3) and ethyl ethocyacetate…

A: Degree of unsaturation = Number of C atoms+1-Number of H atoms2+Number of N atoms2-Number of halogen…

Q: 2. How does the chloro group affect the electron density of the aromatic ring and its directing…

A: Although chlorine is electron withdrawing group but it is Ortho and para directing in electrophilic…

Q: Many biochemical reactions utilize cationic imines (a Schiff base) as electron sinks. Illustrate…

A:

Q: Define Protons on Benzene Rings ?

A: Benzene ring: It is organic hydrocarbon group having Carbon and Hydrogen as main elements in which…

Q: 6. In an organic chemistry lab, chemists were attempting to convert compound I into compound III via…

A: The leaving group attached to 3o carbon. Thus, nucleophilic substitution reaction must be occurred…

Q: 4) (a) Provide a series of synthetic steps to synthesize 2-bromo-3-nitrobenzoic acid from toluene.…

A: Aromatic compounds undergo electrophilic substitution reaction. Incase benzene has electron donating…

Q: In two parts, outline the Electrophilic aromatic substitution for the nitration of benzene using…

A: Nitration of benzene involves following three steps 1. Generation of Electrophile (Nitronium ion) 2.…

Q: Give a clear handwritten answer..and give all possible products

A: Claisen-Schmidt condensation:  Aromatic aldehyde/ketone without alpha hydrogens are treated with…

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.