3) Provide the structure of the major organic product in the following reaction. CH3 4) Classify the compound below as aromatic, anti- aromatic, or non-aromatic. H 5) Classify the compound below as aromatic antiaromatic, or nonaromatic. Assume planarity of the TT network. B N 6) Provide the structure of the major mononitration product of the compound below or write "no reaction" if you think so. (hint: methoxy group is a stronger EDG than phenyl group) OCH 3
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- Organic Chemistry Loudon | Parise SEVENTH EDITION Draw the major organic product for each of the two situations. (a) Phenylacetic acid is treated first with Br₂ and one equivalent of PBr3, then with a large excess of ethanol. Be on Incorrect (b) Propionic acid is treated first with Br, and one equivalent of PBr3, then with a large excess of ammonia. presented by Macmillan Leaming Br f NH,A bicyclic heterocycle aromatic ring with one N atom and the rings are of different size. a Indole b Pyrazine c Purine d QuinolineDraw a molecular orbital diagram for the pi system of tetrazole (including the piacemen oi iis pi electrons) and provide an analysis of its aromaticity using Hückel's rule denoting whether tetrazole is in fact aromatic, antiaromatic, or nonaromatic. H N° Tetrazole b. Provide a picture of the Highest occupied Molecular Orbital (HOMO) and the Lowest Unnocupied Molecular Orbital (LUMO) of tetrazole depicting the phases of thep orbitals, the bonding, antibonding, and non-bonding interactions.
- 1. Classify the following compounds as aromatic, antiaromatic, or nonaromatic. b. а. С. 2. Give the IUPAC name of the following aromatic compounds. а. b. С. F COOH ОН `NO, Br NO, 3. Draw all the Kekulé structures of anthracene.a) Which molecule has a higher electron density in the aromatic ring? Explain. H₂C O CO₂H CO₂H H₂C-N CH3 CH3 b) which is more acidic?3- Identify the aromatic compounds and provide justification for your answers: & H N-
- A. Phenol is nearly 100 million (108) times more acidic than cyclohexanol (EXPLAIN). B. Why are the following conversions poor synthetic methods to prepare the desired products? Br ONa + Doesnot give C. Classify the following compounds as aromatic, antiaromatic, or nonaromatic assume each is planner.Resveratrol is an antioxidant found in the skin of red grapes. Its anticancer, anti-inammatory, and various cardiovascular effects are under active investigation. (a) Draw all resonance structures for the radical that results from homolysis of the OH bond shown in red. (b) Explain why homolysis of this OH bond is preferred to homolysis of either OH bond in the other benzene ring.The pk, of phenol (C,H5OH) is 10.0. When a methyl (CH3) group is attached to the ring, the pK, increases, as shown here for the ortho, meta, and para isomers. OH ОН ОН ОН CH3 (a) Explain why the pk, values of all three isomers are higher than the pk, of phenol itself. (b) Explain why the meta isomer has the lowest pk, of CH3 Phenol CH3 the three isomers. pKa = 10.0 10.3 10.1 10.2
- Heteroaromatic Structures Aromatic compounds which contain non-carbon atoms (e.g., O, N, S) as part of the cyclic conjugated a system are called heteroaromatics. the ring OR a lone pair in a p-orbital. Only one p The heteroatom can be a part of the conjugation as either part of a r bond orbital from the atom can align to contribute to the aromaticity. For example, let's look at furan (shown to the right). How many lone pairs are on the oxygen in this structure? O 3 lone pairs O 1 lone pair O 2 lone pairs O O lone pairs How many electrons are in the r bonds? O 0 electrons O 4 electrons O 2 electrons O 1 electron O 5 electrons O 3 electrons O 6 electrons To determine, the total number of x electrons to use for the Huckel calculation, you need to determine how many of the non-bonding electrons on the oxygen are aligned with the x bonds. Is the red orbital on oxygen aligned with r bonds? O yes O no Is the blue orbital on oxygen aligned with x bonds? O no O yes What is the total number of…Draw the structure of each of the following molecules. (a) (R)-1-chloro-1-fluorobutane; (b) (S)-2-chloropentane; (c) (R)-2-chloro-2-methoxypentane;(d) (R)-2,2,3-trichlorobutane; (e) (S)-3-methylhexane; (f) (S)-2-bromo-1-nitropentaneWhat are the various functions of phenolics and Give seperately industrial uses of phenolics. Answer two pages