a)
Interpretation:
The reaction given has a serious drawback. The potential problem in it is to be explained.
Concept introduction:
The addition of hydrogen halides to unsymmetrical
To explain:
The potential problem in the reaction given.
b)
Interpretation:
The reaction given has a serious drawback. The potential problem in it is to be explained.
Concept introduction:
Alkenes undergo hydroxylation when treated first with OsO4 and then with NaHSO3. The reaction occurs with syn stereochemistry. Both –OH groups add to the double bond from the same face to give a cis-1,2-
To explain:
The potential problem in the reaction given.
c)
Interpretation:
The reaction given has a serious drawback. The potential problem in it is to be explained.
Concept introduction:
During ozonolysis ozone adds to the double bond in an alkene to give an ozonide. The ozonide on treatment with Zn in the presence of acid gets cleaved to yield carbonyl compounds as products. During the reaction each carbon in the double bond gets an oxygen atom.
To explain:
The potential problem in the reaction given.
d)
Interpretation:
The reaction given has a serious drawback. The potential problem in it is to be explained.
Concept introduction:
Alkenes can be hydrated using hydroboration-oxidation reaction. The reaction occurs with syn stereochemistry following anti markovnokov regiochemistry. The addition of both H and OH takes place from the same face of the double bond. The boron and hence the –OH group gets attached to less highly substituted carbon.
To explain:
The potential problem in the reaction given.
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Organic Chemistry
- 2. Given that the organometallic catalyst (C6H5)Co(CO)2 acts to catalyze the following "triyne cyclization) reaction (discovered by Prof. K. Peter C. Vollhardt, who was rumored to throw wild hot tub parties at UC Berkeley). Me Si -C=C- SiMe3+ (CgHs)½Co(CO) , Me,Si Me3Si Give a mechanism for the following reaction.|arrow_forwardThe glycerol carbonylation reaction with CO₂ to produce glycerol carbonate (Figure 1) is thermodynamically hindered due to several reasons including the presence of water as a by-product and the stability of CO2 as a co-reactant. Discuss the possible approach to overcome the issues and be able to produce a higher yield of targeted glycerol carbonate. 0 OH 0 Cat. A HO LOH + CO₂ + H₂O HO. Figure 1arrow_forwardFunctional groups such as alkynes react the same in complex molecules as they do in simpler structures. The following example of alkyne reaction were taken from syntheses carried out in the research group of E. J. Corey at Harvard University. You can assume that the reactions listed involve only the alkyne, not any of the functional groups present in the molecules. Draw the expected products for the following reaction .arrow_forward
- Please answer number 3a and 3b onlyarrow_forwardShow the mechanism arrowarrow_forwardSodium borohydride (NABH4) is said to be a chemoselective reducing agent. Which of the following best describes what this term means? O 1 A reaction that operates exclusively on one functional group in the presence of other functional groups. A reaction that operates on one functional group at a time and is shut down 2) when other functional groups are present. O 3) A reaction that does not operate at all in the presence of a functional group. OA reaction that operates on multiple functional groups in the presence of 4) multiple functional groups.arrow_forward
- C Chemistry nardi and Neil Schore presented by Sap Propose an efficient synthetic scheme for the conversion of lactone A into amine B, a precursor to the naturally occurring monoterpene C. Note: If one or more reagents are incorrectly placed, a single red X will appear on the top left. C CHs CHs CH3 2. CH3 H3C CH3 H3C CHs CH3 H3C CH но но 3. CH3arrow_forward5. For the following molecule, how many isomeric forms of alkenes could be made by reacting this with sodium isopropoxide (alkoxide of isopropyl alcohol) in isopropyl alcohol solution at 75 Cº? Show the process for the reaction and label and name all products expected to be made. Which one product is likely the major product? Remember E/Z as you name them. tharrow_forwardThe following chemical reaction is used to synthesize a flavouring agent that has an aroma similar to bananas. H₂SO4(aq) CH3COOH(1) + CH3(CH₂)₂OH(1) I || Identify the type of reaction that is represented by this synthesis. Select one: CH₂COO(CH₂)₂CH₂(1) + H₂O(1) IV O addition O hydrogenation O substitution O esterification O eliminationarrow_forward
- 3. The rate constants for the decomposition of an unstable cis-azoalkane are given below. -20.73 T (°C) k (104 s¹) 2.31 -24.82 1.22 -17.02 4.39 -13.00 8.50 Calculate the enthalpy, entropy, and free energy of activation at -20.00 °C. -8.95 14.3arrow_forwardIf you were using the following reaction to produce acetone (CH3COCH3) CH3COCH2COOH → CH3COCH3 + CO2 what would be the overall atom efficiency of this reactionarrow_forward(b) Predict the suitable solvent (H2O or CH3COCH3) to increase the reaction of bromopropane(CH3CH2CH2Br) with sodium hydroxide (NaOH). Two reactions are shown below:arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning