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Organic-Chemistry Questions
Organic-Chemistry Questions
Categorize each of the compounds shown below as an [A] allylic bromination product, a [B] bromination addition product, or as [C] not produced by this reaction.
Arrange the following radicals in order of increasing stability, with 1 being the least stable and 7 being the most stable.
Draw the products of the complete hydrolysis of a ketal. Draw all products of the reaction.
Halohydrins form when an alkene is treated with a halogen molecule in water instead of carbon tetrachloride. Understanding the mechanism will help you select the right stereo- and regiochemical outcomes. Select the correct products for the following react
Show the full mechanisms for the following reactions:
Draw the organic products formed in the reaction shown.
Predict the organic products of the reaction. Show stereochemistry clearly.
oxymercuration–demercuration
Fishhook Notation
(S)-3-chloro-3-methylhexane is reacted with sodium iodide in water Select all products that are formed.
(R)-3,3-dimethylpentan-2-ol is heated with concentrated sulfuric acid Select all products that are formed.
(R)-2-iodo-3-methylbutane is treated with sodium bromide in acetone. Select all products that are formed.
R)-2-iodo-3-methylbutane is treated with sodium hydroxide. Select all products that are formed.
Which of the following molecules are chiral?
What is the major product obtained treating when you treat 2-bromo-2,3-dimethylbutane with t-BuOK?
Multistep reaction mechanisms Group Activity Treating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br- Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2O Draw a mechanism for e
For each of the pair of molecules identify whether they are structural isomers, geometric (cis/trans) isomers, enantiomers, the same molecule or different molecules (not isomers)
Explain in a few sentences how extraction can be used to separate an organic compound from sodium chloride.
In general, how does the solubility of a compound in a given solvent change with temperature?
Question 2: Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer contain?
4. The following molecule is simvastatin, a cholesterol-lowering drug. Identify all the chiral carbon atoms in simvastatin and label each chiral carbon with a * then on number 5 . Predict the major organic product, reactant, or conditions for each of the
How many chiral carbons are in the following molecule?
RXN curved arrows
RXN curved arrows
What is the major product obtained treating when you treat 2-bromo-2,3-dimethylbutane with t-BuOK?
Major product when treated with strong base
Fischer Projections for 2,3,4,5,6-pentahydroxyhexanal
Fischer Projections for 2,3,4,5,6-pentahydroxyhexanal
Fischer Projections for 2,3,4,5,6-pentahydroxyhexanal
Fischer Projections for 2,3,4,5,6-pentahydroxyhexanal
Fischer Projections for 2,3,4,5,6-pentahydroxyhexanal
IUPAC naming for Question 1
RXN curved arrows
IUPAC name, Z/E designation name and cis-trans designation
Major product when tree with strong and weak base
Draw the structure of the product formed in the reaction of an epoxide with ethoxide ion. If more than one stereochemical product is possible, draw only one isomer.
A Williamson ether synthesis is shown. 2‑Naphthol in the presence of sodium hydroxide undergoes a deprotonation to give the alkoxide. 1‑Bromobutane is then added and undergoes a nucleophilic substitution by SN2 mechanism. Add curved arrows to demonstr
Organic Chemistry - Synthesize the following compounds using Diels Alder reaction
Indicate which one of the mechanisms: SN1, SN2, E1 or E2 is in operation. Give the major products of the following reactions - if none occur say no reaction. If anyone could please help that would be great!
Determine the structure that is consistent with all the data. Provide the structure of the unknown as well as the structure of the base peak.
In each reaction box, place the best reagent and conditions from the list below.
In each reaction box, place the best reagent and conditions from the list below.
Provide an IUPAC name for each of the compounds shown. (Specify (E)(Z) stereochemistry, if relevant, for straight chain alkenes only. Paula attention to commas, dashes, etc)
Sn2 reaction - sketching molecular orbitals
What is the major organic product obtained from the following reaction
Provide a plausible arrow-pushing mechanism for the following northeaster Claisen rearrangement.
What is the multi-step synthesis for this problem?
What are the nomenclature rules to assign cis or trans prefixes?
Draw the Fisher projection for (2R, 4S) 2,4-difluorohexane and (2S, 4R) 2,4- difluorohexane
Draw the Fisher projection for (2R, 4S) 2,4-difluorohexane and (2S, 4R) 2,4- difluorohexane
Below is a reaction you will carry out in Chem 242. If you start with 100 mg of acetone, what mass of NaBH4 in mgdo you need?
select the best reagent
Electrophilic Aromatic Substitution Substitution
Electrophilic Aromatic Substitution
Organic chemistry
Please help to solved my organic chemistry exercise
Fill in the blanks with either the product or the reagent
What is the difference between Lewis structure and bond line notation?
Draw the structure of the organic product or products formed in the following reaction.
The diol shown below undergoes reactions with oxidizing agents to yield two different products: A and B. Draw the major organic product for each of the reactions below.
Elimination reaction
Can I determine aromaticity by Hückel's rule?
How would you calculate the pH of 0.268 M CCl3COOH?
Rank the following isomers in order of increasing heat of formation.
Draw the coupling product of the Pd(0)-catalyzed Suzuki reaction between the following compounds. Show the stereochemistry of the product.
In each reaction box, place the best reagent and conditions from the list below.
Complete the mechanism for the reaction of butanone with NaBH4 followed by the addition of aqueous acid.
Complete the electron pushing mechanism of the following condensation to form an enamine by adding any missing atoms, bonds, charges, non-bonding electron pairs, and curved arrows. Note the use of a generic base B: as a proton shuttle.
Use retrosynthetic analysis to suggest a way to synthesize 3-ethyl-3-hexanol using the Grignard reaction. (Click and drag the appropriate images to the reactant positions in the following reaction.)
Complete the electron-pushing mechanism for the following base-promoted hydrolysis of an ester. Add atoms, bonds, nonbonding electron pairs (lone pairs), charges, and curved arrows.
Complete the mechanism for the acidic hydrolysis of an amide by drawing curved arrows in each step.
Indicate whether or not each of the following structures is considered to be aromatic for each problem.
Huckel's rule is used to recognize aromatic compounds. From the list below, select the values that satisfy Huckel's rule.
Complete the Frost circle (i.e., use the inscribed polygon method) for the cycloheptatrienyl anion by clicking on the blue boxes to add electrons. Also, classify the aromaticity of the compound. Assume planarity.
Indicate whether or not each of the following structures is considered to be aromatic.
Indicate whether or not each of the following structures is considered to be aromatic.
Draw the major organic product of the following reaction.
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