Homework Answers
Anisole undergoes most rapid bromination upon bromination. This is because OMe group in anisole is highly activating group. A lone pair of electrons is present on O which releases the electron density to the benzene ring and hence activates the benzene ring towards electrophilic substitution reactions at ortho and para positions.
Since in bromination, Br+ is the electrophile. So, anisole reacts with bromine water at room temperature to give a precipitate of 2,4,6 - tribromoanisole
Add Answer to:
Question 19 Which of the following undergoes the most rapid bromination upon treatment with Br 2/FeBr...
D Question 19 6 pts The bromination of anisole at the para position occurs through a...
D Question 19 6 pts The bromination of anisole at the para position occurs through a resonance stabilized sigma complex. All of the structures drawn are correct, but which resonance contributor is the most stable (i.e. which one is the major contributor)? Br S . Н 1
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3...
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3 OCH3 Br a) b) c) d) NO2 OCH3 OCH3 SO3H LO) What is the major product of this reaction: H2CO Brą, light Product Br Br mootorror H3CO. H3CO. d)
6-9 2 6. Which one of the following is the intermediate in the bromination of tolume...
6-9
2 6. Which one of the following is the intermediate in the bromination of tolume (1)! (0) (0) (d) ch 대 75.1 LH Br Вт # Bm 7. Which is the correct order of reactivity of the following three compounds in brominaion reactions? Most reactive first, least reactive last. c . a-HH3 (a) 3>>>1 (b) 1>3>2 (e) >1>3 (d) 3>1>2 8. In the nitration of the following compound the bromine will add on which carbon? (a) 1 (b) 2...
Arrange the following groups of compounds in order from most reactive to least reactive toward electrophilic...
Arrange the following groups of compounds in order from most reactive to least reactive toward electrophilic aromatic substitution. 1. Benzene, ethylbenzene, chlorobenzene, nitrobenzene, anisole. 2. Toluene, p-cresol, benzene, p-xylene. 3. Benzene, benzoic acid, phenol, propylbenzene. 4. p-Methylnitrobenzene, 2-chloro-1-methyl-4-nitrobenzene, 1-methyl-2,4-dinitrobenzene, p-chloromethylbenzene.
L Moving to another question will save this response. Question 2 Which of the following compounds...
L Moving to another question will save this response. Question 2 Which of the following compounds undergoes the most rapid nucleophilic substitution with hydroxide ion? Br Br Br Br CH3 CH3 CHS NO2 1 2 3 4 a.1 b. 2 c. 3 d. 4 A Moving to another question will save this response.
Testbank Question 3 Your answer is incorrect. Try again. Which of these is the rate-determining step...
Testbank Question 3 Your answer is incorrect. Try again. Which of these is the rate-determining step in the bromination of benzene? Complexation of bromine with the iron(III) bromide catalyst Addition of Br+ to benzene to form the arenium ion Loss of a proton from the arenium ion to form bromobenzene None of these choices Formation of Br* ion. LINK TO TEXT
Need help understanding. Thanks! 15. Which of the following structures is the most important contributor to...
Need help understanding. Thanks!
15. Which of the following structures is the most important contributor to the resonance hybrid formed as intermediate when aniline undergoes para-bromination? NH2 NH2 NH2 Br D 16. Select the product of the following reaction H2 Pd/C NO2 Он Он NH2 NO2 NO2 NH2 A. В. C. D. 17. What is the starting material in the reaction below? 1. Mg cон 2. CO2 then acid A. Bromobenzene B. Benzyl bromide C. Benzoic acid D. Lithium benzoate...
Which is not a correct mechanistic intermediate of the para bromination of phenol? OH Br OH...
Which is not a correct mechanistic intermediate of the para bromination of phenol? OH Br OH BE Br a CWU O * ch 5 6 8 . Br OH Br Question 2 (3 points)
organic chemistry Question 8 Which of the following compound is more reactive than benzene in electrophilic...
organic chemistry
Question 8 Which of the following compound is more reactive than benzene in electrophilic aromatic substitution? O A methylbenzene ОВ. bromobenzene oc benzaldehyde OD. chlorobenzene O E nitrobenzene
Draw the structure of alkene which upon bromination gives the following product. (Remember about stereochemistry). Show,...
Draw the structure of alkene which upon bromination gives the
following product. (Remember about stereochemistry). Show, by
drawing the relevant mechanism, that this particular stereoisomer
will be formed from the starting material you have chosen.
COOH Br COOH
D Question 19 6 pts The bromination of anisole at the para position occurs through a resonance stabilized sigma complex. All of the structures drawn are correct, but which resonance contributor is the most stable (i.e. which one is the major contributor)? Br S . Н 1
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3 OCH3 Br a) b) c) d) NO2 OCH3 OCH3 SO3H LO) What is the major product of this reaction: H2CO Brą, light Product Br Br mootorror H3CO. H3CO. d)
6-9
2 6. Which one of the following is the intermediate in the bromination of tolume (1)! (0) (0) (d) ch 대 75.1 LH Br Вт # Bm 7. Which is the correct order of reactivity of the following three compounds in brominaion reactions? Most reactive first, least reactive last. c . a-HH3 (a) 3>>>1 (b) 1>3>2 (e) >1>3 (d) 3>1>2 8. In the nitration of the following compound the bromine will add on which carbon? (a) 1 (b) 2...
L Moving to another question will save this response. Question 2 Which of the following compounds undergoes the most rapid nucleophilic substitution with hydroxide ion? Br Br Br Br CH3 CH3 CHS NO2 1 2 3 4 a.1 b. 2 c. 3 d. 4 A Moving to another question will save this response.
Testbank Question 3 Your answer is incorrect. Try again. Which of these is the rate-determining step in the bromination of benzene? Complexation of bromine with the iron(III) bromide catalyst Addition of Br+ to benzene to form the arenium ion Loss of a proton from the arenium ion to form bromobenzene None of these choices Formation of Br* ion. LINK TO TEXT
Need help understanding. Thanks!
15. Which of the following structures is the most important contributor to the resonance hybrid formed as intermediate when aniline undergoes para-bromination? NH2 NH2 NH2 Br D 16. Select the product of the following reaction H2 Pd/C NO2 Он Он NH2 NO2 NO2 NH2 A. В. C. D. 17. What is the starting material in the reaction below? 1. Mg cон 2. CO2 then acid A. Bromobenzene B. Benzyl bromide C. Benzoic acid D. Lithium benzoate...
Which is not a correct mechanistic intermediate of the para bromination of phenol? OH Br OH BE Br a CWU O * ch 5 6 8 . Br OH Br Question 2 (3 points)
organic chemistry
Question 8 Which of the following compound is more reactive than benzene in electrophilic aromatic substitution? O A methylbenzene ОВ. bromobenzene oc benzaldehyde OD. chlorobenzene O E nitrobenzene
Draw the structure of alkene which upon bromination gives the
following product. (Remember about stereochemistry). Show, by
drawing the relevant mechanism, that this particular stereoisomer
will be formed from the starting material you have chosen.
COOH Br COOH
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago