Homework Answers
The given molecule is 3-heptene.
The addition of HBr to this molecule in the presence of ether as
solvent would give the products as shown in the given image. HBr
addition always follows Markownikoff's rule, i.e. Br adds at the
more substituted carbon centre.
Hence, the product of the reaction will be a mixture of 4-bromoheptane and both enantiomers of 3-bromoheptane. We cannot label the two regioisomers as major or minor products, because from the mechanism, it is seen that the precedent carbocation for both are equally stable.
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If the following compound were dissolved in ether and treated with HBr, which of the following...
A mixture of benzil and m-nitroaniline is dissolved in ether. HCL(aq) is added. Which compound remains...
A mixture of benzil and m-nitroaniline is dissolved in ether. HCL(aq) is added. Which compound remains in the ether layer? A mixture of benzil and m-nitroaniline is dissolved in ether. HCl(aq) is added. Which compound DOES NOT remain in the ether layer? What is the purpose of the anhydrous sodium sulfate?
7. When compound 1 is treated with concentrated HBr, it yields the corresponding compound 2. Propose...
7. When compound 1 is treated with concentrated HBr, it yields the corresponding compound 2. Propose a mechanism that will account for the stereochemistry of the reaction. Br CH3 Br CH3 H Hl.... C + HBr C6-H HI CHE OH CH3
3. A crude nonacidic product mixture dissolved in diethyl ether contains acetic acid. Describe an extraction...
3. A crude nonacidic product mixture dissolved in diethyl ether contains acetic acid. Describe an extraction procedure that could be used to remove the acetic acid. b. When the two layers form during an ether/water extraction, what would be an easy, convenient way to tell which layer is which if the densities were not available.
in which kind of mechanism will this product be formed, ether exclusively or as a mixture?...
in which kind of mechanism will this product be formed, ether exclusively or as a mixture? Which is true about the following reaction? 0.5-1 1. Bonds are being formed/broken at the same time. 2. Bonds are being formed/broken at different times. 3. Nu and leaving groups are on opposite sides. 4. Rate - (CH ) suggests that the rate is dependant on the two reactants. A. S 2 reaction 8. 5.1 reaction c. Either D. Neither If this reaction proceeds...
What is the product of the reaction shown below? 1. HBr 2. Mg dry ether 3....
What is the product of the reaction shown below? 1. HBr 2. Mg dry ether 3. Нсо 4. H H20 No reaction но Но. Он OH
Three compounds below were dissolved in a solution of diethyl ether [Answer choices are aniline, benzoic...
Three compounds below were dissolved in a solution of diethyl
ether
[Answer choices are aniline, benzoic acid, and benzil]
____ can be extracted into the aqueous layer using 3 M HCL
____ can be extracted into the aqueous layer using 3M NaOH
Draw the compounds left in solution
The three compounds below were disolved in a solution of diethyl ether. Mapd OH NH2 aniline benzoic acid benzil Select answercan be extracted into the aqueous layer using 3M HCI. Select answercan...
When the 2,7-dimethyl-4-octyne is treated with 2 moles (excess) HBr, the product(s) of the reaction is:...
When the 2,7-dimethyl-4-octyne is treated with 2 moles (excess) HBr, the product(s) of the reaction is: CH-CH-CH-CH-CH-CH-CH-CH, B. CH3-CH-CH CH -CH2-CH-CH-CH; C CH-CH-CH2-C-CH3-CH-CH-CH н D. A mixture of a and b would be produced. A mixture of a, b, and e would be produced OB 0 0 0 Which of the following is the correct structure for 4-sec-butyl-1-heptyne? D. none of these OD What is the major organic product obtained from the following reaction? OH M CH,CH-CH-CH2=CH- 3 OH •...
3. Draw the product and give the complete arrow pushing reaction mechanism for the ether cleavage...
3. Draw the product and give the complete arrow pushing reaction mechanism for the ether cleavage of compound A with HBr. HBr
Account for the regioselectivity and stereoselectivity observed when this compound is treated with BH3 by drawing...
Account for the
regioselectivity and stereoselectivity observed when this compound
is treated with BH3 by drawing the product formed prior to a
subsequent hydrolysis reaction.
Account for the regioselectivity and stereoselectivity observed when this compound is treated with BH; by drawing the product formed prior to a subsequent hydrolysis reaction. • Use wedge and hash bonds ONLY when needed to show reaction stereochemistry • If the reaction produces a racemic mixture, just draw one stereoisomer.
1. Which of the following describes the compound NiI2? Choose all answers that apply. The compound...
1. Which of the following describes the compound NiI2? Choose all answers that apply. The compound is ionic. The compound would conduct electricity if molten. The compound is molecular. If the compound dissolved in water it would be a strong electrolyte. The compound would be expected to have a relatively low melting point. 2. Which of the following describes the compound (NH4)2CO3? Choose all answers that apply. The compound would be expected to be a solid at room temperature and...
7. When compound 1 is treated with concentrated HBr, it yields the corresponding compound 2. Propose a mechanism that will account for the stereochemistry of the reaction. Br CH3 Br CH3 H Hl.... C + HBr C6-H HI CHE OH CH3
in which kind of mechanism will this product be formed, ether exclusively or as a mixture? Which is true about the following reaction? 0.5-1 1. Bonds are being formed/broken at the same time. 2. Bonds are being formed/broken at different times. 3. Nu and leaving groups are on opposite sides. 4. Rate - (CH ) suggests that the rate is dependant on the two reactants. A. S 2 reaction 8. 5.1 reaction c. Either D. Neither If this reaction proceeds...
What is the product of the reaction shown below? 1. HBr 2. Mg dry ether 3. Нсо 4. H H20 No reaction но Но. Он OH
Three compounds below were dissolved in a solution of diethyl
ether
[Answer choices are aniline, benzoic acid, and benzil]
____ can be extracted into the aqueous layer using 3 M HCL
____ can be extracted into the aqueous layer using 3M NaOH
Draw the compounds left in solution
The three compounds below were disolved in a solution of diethyl ether. Mapd OH NH2 aniline benzoic acid benzil Select answercan be extracted into the aqueous layer using 3M HCI. Select answercan...
When the 2,7-dimethyl-4-octyne is treated with 2 moles (excess) HBr, the product(s) of the reaction is: CH-CH-CH-CH-CH-CH-CH-CH, B. CH3-CH-CH CH -CH2-CH-CH-CH; C CH-CH-CH2-C-CH3-CH-CH-CH н D. A mixture of a and b would be produced. A mixture of a, b, and e would be produced OB 0 0 0 Which of the following is the correct structure for 4-sec-butyl-1-heptyne? D. none of these OD What is the major organic product obtained from the following reaction? OH M CH,CH-CH-CH2=CH- 3 OH •...
3. Draw the product and give the complete arrow pushing reaction mechanism for the ether cleavage of compound A with HBr. HBr
Account for the
regioselectivity and stereoselectivity observed when this compound
is treated with BH3 by drawing the product formed prior to a
subsequent hydrolysis reaction.
Account for the regioselectivity and stereoselectivity observed when this compound is treated with BH; by drawing the product formed prior to a subsequent hydrolysis reaction. • Use wedge and hash bonds ONLY when needed to show reaction stereochemistry • If the reaction produces a racemic mixture, just draw one stereoisomer.
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