What product would result from the following reaction
34. What product would result from the following reaction
a.I b. II c. III d. IV e. V
35. Which of the following combinations of reactants can provide a demonstrable example of anti-Markovnikov addition?
36. In a competition reaction, equimolar amounts of five alkanes compete for a deficiency of chlorine at 300'C. The greatest amount of reaction would occur in the case of which of these alkanes?
a. Ethane b. Propane c. Butane d. Isobutane e. Pentane
Homework Answers
34. Answer is a.
HBr in presence of peroxides will follow anti-matkovnikov product. (negative part Br- will attach to carbon containing more number of hydrogen's.
35. Answer is d. Same explanation as Q.34.
36. Answer is d.
On monochlorination of isobutane gives only one product.
Which of the following combinations of reactants can provide a demonstrable example of anti-Markovnikov addition?
35. Which of the following combinations of reactants can provide a demonstrable example of anti-Markovnikov addition? 36. In a competition reaction, equimolar amounts of five alkanes compete for a deficiency of chlorine at 300'c. The greatest amount of reaction would occur in the case of which of these alkanes? a. Ethane b. Propane c. Butane d. Isobutane e. Pentane
What is the common name for the following structure? A) Isobutane B) Isopentane C) t- Butane...
What is the common name for the following structure? A) Isobutane B) Isopentane C) t- Butane D) n- Butane E) 2-methylbutane Which structure is tert.-butyl bromide? A. Br-CH(CH_3)-CH_2-CH_3 B. Br-C(CH_3)_3 C. Br-CH_2-CH(CH_3)_2 D. Br-C(CH_3)_2-CH_2-CH_3 Which one of the alkanes would you suspect to have the lowest boiling point? A. 2-methylpropane B. pentane C. nonane D. butane How many tertiary hydrogen atoms are there in C1-CH_2-C(CH_3)_2-CH(CH_3)-C(CM_3)_3? A.6 B.3 C.2 D. 1 The conjugate acid of H_2 O is: A. H_2 O:...
1) Predict the major product of the following reaction.
1) Predict the major product of the following reaction. 2) What synthetic goal is achieved by subjecting an alkene to an oxymercuration-demercuration sequence? A) syn-hydroxylation B) Markovnikov addition of H2O wherein skeletal rearrangement is prevented C) anti-Markovnikov addition of H2O wherein skeletal rearrangement is promoted D) Markovnikov addition of H2O wherein skeletal rearrangement is promoted E) anti-Markovnikov addition of H20 wherein skeletal rearrangement is prevented 3) Treatment of 2-methylpropene with which of the following reaction conditions results in an anti-Markovnikov addition product? (circle all that apply) A) dry...
What is the major product obtained from the following reaction sequence? Br2 EtONa NACN D HBr...
What is the major product obtained from the following reaction sequence? Br2 EtONa NACN D HBr B A ETOH hv peroxides heat CN CN CN CN II III O A. III OB. IV O C.V OD II O E. I What would be the major product of the following reaction sequence? 1. HBr, ROOR, hv 2. CH CO-H, CH coNa OH 0.CCH 0.cCH Ph Ph I III IV O A.I O B. II O C. IV O D. II O...
please explain 11. Deterni ne the product of the following reaction. 2. A. C. B. D....
please explain
11. Deterni ne the product of the following reaction. 2. A. C. B. D. E. None of the choices is correct. E) E A) A D) D B) B c) C 12. Determine the product of the following reaction. H20, H2S04 HgSO4 OH A. へ 人H E. None of these choices is correct. D. E) E D) D C) C в) в A)A 13. Which of the following reaction conditions would result in anti-Markovnikov addition to an alkene?...
5. Which product(s) would you expect to obtain from the following sequence of reactions? 1. BH-THF...
5. Which product(s) would you expect to obtain from the following sequence of reactions? 1. BH-THF 2. H,, NaoH A) I B) II C) III D) IV E) V 6. The reaction between 2-methyl-2-pentanol and HBr to yield 2-methyl-2-pentene is probably: A) an S1-type reaction involving the protonated alcohol as the substrate. B) an Sy2-type reaction involving the protonated alcohol as the substrate. C) an El-type reaction involving the protonated alcohol as the substrate. D) an E2-type reaction involving the...
19. What would be the major product(s) of the following reaction? Br EtOH 20 °C OEt IV C) I and I...
19. What would be the major product(s) of the following reaction? Br EtOH 20 °C OEt IV C) I and III A) I and II D) IV B) II and III E) None of these choices. 20. Give a detailed reaction mechanism for the reaction expected to occur when 2-bromo- methylpentane is heated with methanol. Draw clear structural formulas of all relevant species and use curved arrows to represent electron flow. Also indicate which step is likely to be rate-...
please hurry Stion 24 Which reagents would you use for the following reaction? A. HBr in...
please hurry
Stion 24 Which reagents would you use for the following reaction? A. HBr in water B. NaBr in water C. Bromo ethane D. Iodo ethane Question 25 By what mechanism is the following reaction likely to occur? NaSH A) SNI B) SN2 C) E1 D) E2 Question 26 Which of the molecules below would be the expected product for the following reaction?
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile...
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile leaving group Select the product that results from the anti-Markovnikov/syn addition of H and OH to the following alkene. I II III IV What is the IUPAC name for the molecule shown below? 3-(l-butynyl)pentane 5-ethyl-3-octyne 3-ethyl-4-heptyne 5-ethyl-3-heptyne What would be the major product obtained from the addition of HBr to 2-methylpentene? 1-bromo-2-methylpentane 2-bromo-2-methylpentane 3-bromo-2-methylpentane 1-bromo-2-methylpentene What is the reaction product when 4-methyl-2-pentyne is reacted...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded in different orders. These may be further distinguished as chain isomers, which differ only in hydrocarbon chain structure, positional isomers, which differ in the location of a functional group, and functional group isomers which differ in the nature of their functional groups. Typically chain and position isomers show only modest differences in their physical and chemical properties, while functional group isomers differ greatly from...
What is the common name for the following structure? A) Isobutane B) Isopentane C) t- Butane D) n- Butane E) 2-methylbutane Which structure is tert.-butyl bromide? A. Br-CH(CH_3)-CH_2-CH_3 B. Br-C(CH_3)_3 C. Br-CH_2-CH(CH_3)_2 D. Br-C(CH_3)_2-CH_2-CH_3 Which one of the alkanes would you suspect to have the lowest boiling point? A. 2-methylpropane B. pentane C. nonane D. butane How many tertiary hydrogen atoms are there in C1-CH_2-C(CH_3)_2-CH(CH_3)-C(CM_3)_3? A.6 B.3 C.2 D. 1 The conjugate acid of H_2 O is: A. H_2 O:...
What is the major product obtained from the following reaction sequence? Br2 EtONa NACN D HBr B A ETOH hv peroxides heat CN CN CN CN II III O A. III OB. IV O C.V OD II O E. I What would be the major product of the following reaction sequence? 1. HBr, ROOR, hv 2. CH CO-H, CH coNa OH 0.CCH 0.cCH Ph Ph I III IV O A.I O B. II O C. IV O D. II O...
please explain
11. Deterni ne the product of the following reaction. 2. A. C. B. D. E. None of the choices is correct. E) E A) A D) D B) B c) C 12. Determine the product of the following reaction. H20, H2S04 HgSO4 OH A. へ 人H E. None of these choices is correct. D. E) E D) D C) C в) в A)A 13. Which of the following reaction conditions would result in anti-Markovnikov addition to an alkene?...
5. Which product(s) would you expect to obtain from the following sequence of reactions? 1. BH-THF 2. H,, NaoH A) I B) II C) III D) IV E) V 6. The reaction between 2-methyl-2-pentanol and HBr to yield 2-methyl-2-pentene is probably: A) an S1-type reaction involving the protonated alcohol as the substrate. B) an Sy2-type reaction involving the protonated alcohol as the substrate. C) an El-type reaction involving the protonated alcohol as the substrate. D) an E2-type reaction involving the...
19. What would be the major product(s) of the following reaction? Br EtOH 20 °C OEt IV C) I and III A) I and II D) IV B) II and III E) None of these choices. 20. Give a detailed reaction mechanism for the reaction expected to occur when 2-bromo- methylpentane is heated with methanol. Draw clear structural formulas of all relevant species and use curved arrows to represent electron flow. Also indicate which step is likely to be rate-...
please hurry
Stion 24 Which reagents would you use for the following reaction? A. HBr in water B. NaBr in water C. Bromo ethane D. Iodo ethane Question 25 By what mechanism is the following reaction likely to occur? NaSH A) SNI B) SN2 C) E1 D) E2 Question 26 Which of the molecules below would be the expected product for the following reaction?
In an addition reaction to an alkene, the pi bond plays the role of nucleophile electrophile leaving group Select the product that results from the anti-Markovnikov/syn addition of H and OH to the following alkene. I II III IV What is the IUPAC name for the molecule shown below? 3-(l-butynyl)pentane 5-ethyl-3-octyne 3-ethyl-4-heptyne 5-ethyl-3-heptyne What would be the major product obtained from the addition of HBr to 2-methylpentene? 1-bromo-2-methylpentane 2-bromo-2-methylpentane 3-bromo-2-methylpentane 1-bromo-2-methylpentene What is the reaction product when 4-methyl-2-pentyne is reacted...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded in different orders. These may be further distinguished as chain isomers, which differ only in hydrocarbon chain structure, positional isomers, which differ in the location of a functional group, and functional group isomers which differ in the nature of their functional groups. Typically chain and position isomers show only modest differences in their physical and chemical properties, while functional group isomers differ greatly from...
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