Chem 241 Lab Manual - Lab 4 - Selectivity of Aromatic Bromination

The ___________ functional group will have a sharp, dagger-like absorbance at 2220-2250 cm-1 on its IR spectrum (and an odd-numbered molecular mass (M+) on its mass spectrum).     alkyne     nitrile     aldehyde     alkene     carbolxylic acid

FTIR Tables List position (cm) & functional group 4. 5. 3. 7. 6. 1. 2.

A lab technician planned to synthesize 2-bromopentane using 2-pentanol, heat, and HBr. However, the labtechnician did not have HBr in the lab. What other reagent(s) can the technician use to synthesize 2-bromopentane using 2-pentanol as the starting material?

6. Select the most hydrophobic (non-polar) aromatic compound that has the least water solubility. a) c) CH3 OH B b) с d) LOCH3 7. Select the electrophile in the following electrophilic aromatic substitution rea A CO₂H NO₂

19. Write a series of equations to illustrate the synthesis of 3-pentanone from an alkene (you must choose the correct alkene compound to begin your series of reactions). Include the names and structures of all reactants and products. (3T/I, 3C)

What reagents / catalysts are necessary to carry out each conversion?i) Benzene to nitrobenzeneii) Benzene to 3-nitrobenzenesulfonic acidIii) 1,4-dichlorobenzene to 2-bromo-1,4-dichlorobenzene

1. Name the following compounds. Where necessary use EIZ notation. 4, 2. N-chyl-N-methylpropanamide Butan-2-ol 2-Butanol 2. 4 OH 3 O Butanoic acida 512)-3-methylpent-2-ene

Select the correct stereodescriptor and names

[Review Topics] [References] HO pyridine 1. SOCIl, + sO2 + H. Aqueous acetone H3C H20 H3C HBr 2. Br H OH optically active racemic f = SN1 Nucleophilic substitution g = SN2 Nucleophilic substitution a = Proton transfer d = E1 Elimination b = Lewis acid/base e = E2 Elimination c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers. 1. 2.

D. Draw a structural formula for these compounds. 1. 1-Chloro-2-propanone 2. 3-Hydroxybutanal 3. 4-Hydroxy-4-methyl-2-pentanone 4. 3-Methyl-3-phenylbutanal 5. 1,3-Cyclohexandione

A benzene ring alters the reactivity of a neighboring group in the so-called “benzylic” position, similarly to how a double bond alters the reactivity of groups in the “allylic” position. Benzylic cations, anions, and radicals are all more stable than simple alkyl intermediates. a) Use resonance structures to show the delocalization of the positive charge, negative charge, and unpaired electron of the benzyl cation, anion, and radical.

1. a secondary alkyl halide with molecular formula C4H9l 2. trans-1,2-cyclopentanediol 3. tert-butyl phenyl ether 4. an ether with molecular formula C3H8O 5. p-aminophenol

Is 2-pyridone aromatic?

True or false: 1- A) will react more slowly than benzene during an electrophilic substitution reaction 2- B2 is a better electrophile than B1 for SN1 reaction 3- C1 will react more rapidly with bromopropane than C2 in a SN2 reaction 4- D1 is a better nucleophile than D2 5- E1 is a position isomer of E2 6- F1 and F2 are constitutional isomers

Draw the correct aromatic organic product for the following reaction. (If no reaction, draw the starting material.)

10) For the reaction between isopropyl 1-propyl (or 'n-propyl') ether and HBr, which type of reaction best matches the expected products? A) Acid-catalyzed dehydration B) Nucleophilic substitution reaction C) Ether cleavage reaction D) Nucleophilic addition-elimination reaction

Provide structures for aromatic hydrocarbons that meet the following criteria: a. compound C9H12 that gives only one product C9H1|Br upon halogenation with Br2 in FeBr3 b. compound C10H14 that gives only one compound C10H13B1 upon reaction with Cl2 in FeCl3 c. compound C1,H14 that gives two products C1,H13CI upon reaction with Cl2 in FeCl3

uo 9:0A Asiacell I. 02:48 المتبقي متعد د الخيارات Which alkyl halide would react the fastest under substitution conditions with HO-? 2-bromo-2-methylpentane O 2-bromo-3-methylpentane 1-bromo-2,2-dimethylpentane 2-bromopentane 1-bromo-4-methylpentane O 1 of 5

Enanthotoxin is an extremely poisonous organic compound found in hemlock water drop- wart, which is reputed to be the most poisonous plant in England. It is believed that no British plant has been responsible for more fatal accidents. The most poisonous part of the plant is the roots, which resemble small white carrots, giving the plant the name"five finger death."Also poisonous are its leaves, which look like parsley. Enanthotoxin is thought to interfere with the Nat current in nerve cells, which leads to convulsions and death. он How many stereoisomers are possible for enanthotoxin?

Below is a short reaction sequence. Provide the structure of the two missing organic compounds.

4-pyranone will quickly undergo an acid-base reaction. Identify the reaction conditions that will result in the formation of an aromatic product. Then, draw the aromatic resonance product structure. Include all lone pairs in your structure. Ignore inorganic byproducts. :0: :O:

I. Name the following benzene derivatives in accordance to General Nomenclatures and IUPAC rules. NO2 NO2 CaHs Co ty 1. 4. CH-CH2 CH-CH NO cOcty CH2 NO2 NOz 5. NO cOcto I 3. 6. NH, 2. NO2 Authored by: Sensei Wilmark Palacios 7. 8. NH, cooH OH CAg 9. 10. COH I 2.

When 2-chloropropane treated with NaOH and 1-chloropropane treated with NaOH separately produce two different functional groups. Provide both reactions and explain the two different functional groups produced.

follow the instructions carefully

My Organic Chemistry textbook says about the formation of cyclic hemiacetals, "Such intramolecular reactions to form five- and six-membered rings are faster than the corresponding intermolecular reactions.  The two reacting functional groups, in this case OH and C=O, are held in close proximity, increasing the probability of reaction."According to the book, the formation of cyclic hemiacetals occurs in acidic conditions. So my question is whether the carbonyl group in this reaction reacts first with the end alcohol on the same molecule or with the ethylene glycol.  And, given the explanation in the book, if it reacts first with ethylene glycol before its own end alcohol, why would it?  I don't need to know the final answer.  I need to know WHY it would not undergo an intermolecular reaction prior to reacting with the ethylene glycol if that is the case.  Please do not use an AI answer.

Starting from cyclohexanone, show how to make the given product, include conditions to use in the reaction. HaG CH3 ཡིག་..སྟན་ཚིག་