Draw all of the constitutional isomers of octane. For each isomer: 1. State the number of different sets of carbons in its structure. 2. State whether each set of equivalent carbons would produce a singlet, doublet, triplet, or quarter in the Off-Resonance Decoupled Experiment.
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Draw all of the constitutional isomers of octane. For each isomer:
1. State the number of different sets of carbons in its structure.
2. State whether each set of equivalent carbons would produce a singlet, doublet, triplet, or quarter in the Off-Resonance Decoupled Experiment.
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- Draw all the constitutional isomers of octane. Name each one. For each isomer: a. State the number of different sets of carbon in the structure b. State whether each set of equivalent carbons would produce an up or down signal in the DEPT-135 NMR experiment. c. State whether each set of equivalent carbons would produce a singlet, doublet, triplet, or quartet in the Off-Resonance Decoupled ExperimentPlease complete both subpart reactions in clear handwritten answer on a paper!Table B. Tests for Phenolic Groups. For each test compound (row), check the box if the result in the given tests (columns) positive. Leave the box unchecked if otherwise. CAUTION: These are ALL OR NOTHING items. I Ferric Chloride Test Liebermann's Test Phthalein Dye Test Phenol Resorcinol Hexane
- Answer in your own words and it should not be in more than 2 lines. a. Describe a simple test to distinguish alcohols from phenols. b. Describe 2 tests for unsaturation c. What does circle represent in aromatic carbon ring.2. Complete the following electrophilic aromatic substitution reactions for the monosubstituted benzenes, Providing major product(s) only. (Hint: start with identifying the effect of substituent, then figuring out the structure of product) b. C. d. 1. 9₁ ,NO Br CO₂H B1₂ FoBra SO, H₂SO4 EICI AICI Cl₂ FeCl HNO3 H₂SO4 CI Br₂ CH₂COOH 1. SnCl, HyO* 2. H₂O AICI32. State the two main experiments that were used to establish the extra stability of the benzene molecule. 3. What are the factors that confer Aromaticity to an organic molecule? 4. i. State the effects of substituents on a benzene derivative towards further aromatic substitution.
- Terminology of stereochemistry and stereoselectivity a. Differentiate cis/trans and syn/anti. Draw an illustrate for each and provide an explanation. b. Differentiate alkyl, allyl, vinyl, viscinal, and geminal. Draw an illustration for each and provide an explanation. c. Discuss how steric hindrance plays a role in regioselectivity and stereoselectivity. Provide separate explanations. Sometimes both regioselectivity and stereoselectivity are competing. Provide an example and explain.A Moving to another question will save this response. Question 12 Identify the electrophile in a Friedel-Crafts alkylation (remember: the one that will react with the benzene ring) O aluminum tetrachloride ion O radical O carbocation O aluminum chloride O carbanion A Moving to another question will save this response.keferences Draw the structure(s) of the major organic product(s) of the following reaction. H. PPH3 THE • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If the reaction produces a racemic mixture, draw both stereoisomers. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Include anionic counter-ions, e.g., I-, in your answer, but draw them in their own sketcher. C opy aste
- True or False 1. Liebermann-Burchard Test -Color change is due to increasing conjugation of the double bond in adjacent fused ring 2. Liebermann-Burchard Test -Acetic anhydride reacts with the aliphatic hydrocarbon. 3. Salkowski Test - The chloroform layer turns red. 4. Salkowski Test - Involves the reagents chloroform, sulfuric acid and acetic anhydride 5. Liebermann-Burchard Test -Reaction involved is esterification. 6. Keller-Killiani Test - Involves color reaction of the sugar 2-deoxyhexose 7. Salkowski Test - The upper layer turns yellow with green fluorescence 8. Liebermann-Burchard Test -Must observe the color right away because it happens in a very short period of time. 9. Liebermann-Burchard Test - Chloroform was added to react with sulfuric acid. 10. Keller-Killiani Test - Color change results to reddish brown that turns into violet or purpleStep 1: Use curved arrows to show conversion to Step 2: Complete the structure. An enone has been the next step. added and add curved arrows to show the conversion to the next step. Select Draw Rings More Erase Select Draw Rings More Erase H H :0: H H H H H H HO .. QWhich of the following molecules is anti-aromatic? A. Cyclopentadienyl cation B. cycloheptatriene C. silopentadiene D. cycloheptatrienyl cation E. cyclopentadienyl anion