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Which of the following features is not a characteristic of aromatic compounds? undergo addition reactions on...
Aromaticity Worksheet CHEM 2410 Fall 2019 Determine if the following compounds are aromatic, anti-aromatic or non-aromatic. Give reasons for your answer. ***Assume all the cyclic compounds are planar (flat) for these problems. Summary Notes: Aromatic - 4n+2 pi electrons, complete cyclic conjugated pi system and planar (flat) Anti-aromatic - 4n pi electrons, cyclic conjugated pi system and planar(flat) Non-aromatic-breaks any of the above rules (all other compounds) Sp3 hybridized heteroatoms (O, S, N) are involved in the pi system Sp2...
Aromaticity Worksheet CHEM 2410 Fall 2019 Determine if the following compounds are aromatic, anti-aromatic or non-aromatic. Give reasons for your answer. ***Assume all the cyclic compounds are planar (flat) for these problems. Summary Notes: Aromatic - 4n+2 pi electrons, complete cyclic conjugated pi system and planar (flat) Anti-aromatic - 4n pi electrons, ccyclic conjugated pi system and planar(flat) Non-aromatic - breaks any of the above rules (all other compounds) Sp3 hybridized heteroatoms (O, S, N) are involved in the pi...
Select the single best answer. Is the following compound aromatic? If it is not aromatic, select the answer which best states why it is not aromatic. O It is not aromatic. It does not have 4n + 2 electrons. It is not aromatic. It is not completely conjugated. It is aromatic. It is not aromatic. It is not planar.
The electrophilic bromination or chlorination of benzene requires, in addition to the halogen: a hydroxide ion. a Lewis base. a Lewis acid. peroxide. Aryl and vinyl halides cannot be used in the Friedel-Crafts alkylation because they do not form carbocautions readily. True False Which is not a characteristic of aromatic compounds? Aromatic compounds are non-cyclic. Aromatic compounds are conjugated. Aromatic compounds meet the Huckel's rule. Aromatic compounds are planar. Which of the compounds below is a product of this reaction?...
Which of the following compound(s) will readily undergo addition and oxidation reactions? a. Saturated hydrocarbons b. Unsaturated hydrocarbons c. Aromatic compounds a b a & b c Which of the following compound(s) are characterized by substitution reactions? a. Saturated hydrocarbons b. Unsaturated hydrocarbons c. Aromatic compounds a b c none of these
Which of the following statements is not true for a compound to be considered aromatic? Select one: O a. the compound must be monocyclic b. the compound must have 4n + 2 pi-electrons delocalized over the ring system O c. the compound must have conjugated p-orbitals at ever atom of the ring o d. the compound must be planar
4. Disnes undergo 1.2-addition OR 1,4-addition with FIX and X: The major product is determined by the temperature of the reaction notice how alkene shifted OR AB 1,2-addition 1.4.ddition when heated A) Drew mechanisms to account for all possible products (hox all final products). Explain which products will be favored at low temperatures, which at high temperatures H-C B) Draw the major product of the following reactions. 1 Bry -78 °C HCI 40 °C 65 5. Only s-cis dienes can...
2. Which of the following is not a characteristic of SN2 reactions? A. rate depends only on the concentration of nucleophile B. chiral electrophiles undergo inversion C. alkyl fluorides are relatively unreactive D. iodide is a relatively good nucleophile
2. Identify each of the following compounds as aromatic, nonaromatic, or antiaromatic (1 pt each) and briefly list all criteria necessary for making your designation (1 pt each). The first is done as an example. (6 pts total) Aromatic • Cyclic Fully conj.pl system Planar • 3 pair pi electrons
Draw the major organic product formed in the following reactions. (1 pt each) CH Jones oxidation HaCrO4 toluene NaOE! 3. Hückel's criteria. Determine if the following compounds are aromatic or not. (2 pts) Yes or No? a. Is it cyclic? b. Does it have one 2p orbital on each atom of the ring? c. Is it planar, with a continuous overlap of 2p orbitals on the ring? d. Does it have (4n+2) electrons in the cyclic arrangement of 2p orbitals?...