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2. (13 pts) Use the letters A, B, and C to arrange the items in each...
2. Arrange the following in order of: (i) increasing reactivity with HCI. CH, CH CH H.C=C...
2. Arrange the following in order of: (i) increasing reactivity with HCI. CH, CH CH H.C=C nec nec 20 cm H.C=C CH HC=C CH, (b) H.C=C NHCH, CHOCH, ОСН, (a) (c) (d) Teast reactive most reactive (ii) increasing stability. CH CH3 CH (a) (C) least stable most stable (iii) increasing heat of hydrogenation. CH,CH, CH=CH2 C H.CH O CH.CH CH3 CH,CH; CH,CH, (0) lowest heat of hydrogenation
Arrange the following weak bases in order of expected increasing stability. H CH CH3 H-C-H HC-N-CH,...
Arrange the following weak bases in order of expected increasing stability. H CH CH3 H-C-H HC-N-CH, HỌC-C-CH, * *0 II III a. (least stable base) III <I < II (most stable base) b. (least stable base) I < II < III (most stable base) c. (least stable base) III <II < I (most stable base) d. (least stable base) I III < II (most stable base) e. (least stable base) II < 1 < III (most stable base) f. (least...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе mos...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
Part 1 - Relative Properties (14 marks] Arrange the items in each set (three per set)...
Part 1 - Relative Properties (14 marks] Arrange the items in each set (three per set) in decreasing order with respect to the indicated property: Use the following code to indicate your answer: A. i>ii > iii B. i>iiiii C. ii > i>iii D. ii > iii >i E. iiiiii 1. Most to least stable carbocation: i. ii. 2. Highest to lowest reaction rate when treated with Nal/DMSO: i. ii. Br CI iii. Br 3. Highest to lowest reaction rate...
17) Write the products for the following reactions? 8 Pt A) excess сн,он. H2SO4 B) NH...
17) Write the products for the following reactions? 8 Pt A) excess сн,он. H2SO4 B) NH OH H2SO4 - C) Ph3P=CHCH3 i D) CH COOH 18) Predict the steps for the following conversion with proper reagents? (Hint: Protection and deprotection chemistry) 5 Pts осн он 5) Classify the following substituents as ELECTRON DONATING and ELECTRON WITHADRAWING? 3R -NH, -OCH, NO, -CH3 Electron Donating Electron Withdrawing 6) Classify the following compounds AROMATIC, ANTI AROMATIC and NON-AROMATIC? 2 PS con A) 7)...
Name the following compounds. Don't forget to specify stercochemistry when appropriate 2. Draw the structures of...
Name the following compounds. Don't forget to specify stercochemistry when appropriate 2. Draw the structures of cis-2-ethylhexa-1,4-diene E-2,4-dimethylhexa-1,4-diene 3. Assign E or Z configuration to the following alkenes. (Circle highest priority groups) Br сн Вr сH,сн,Br NH2CH CH2CHCH CH,OH NH2 CH2CH2Br NEC Which of the following compounds that can exist as a mixture of stereoisomers? Draw each b. 1-chloro-2-methylbut-2-ene 4. a. 1-chloropropene c. 1,1-dichloroethene 5. Calculate the degree of unsaturation for codeine, CisHaiNO,. Show your work. 6. Rank the following...
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2....
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2. a 3. Which of the following is NOT a resonance structure of ozone? b. a. d. All are valid resonance structures C. 4. Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) II II d. Il<lll< C. I<ll<llI b. I<lll<ll a. Ill<ll< 5 What is the correct Lewis structure for CHsNCO? b. No 0 НС H,C- a. d....
Question 10 10 pts A) 1-chloro-4-methylpentane B) 2-chloro-2-methylpentane C) 3-chloropentane D) 2-chloro-3-methylpentane Arrange the compounds above...
Question 10 10 pts A) 1-chloro-4-methylpentane B) 2-chloro-2-methylpentane C) 3-chloropentane D) 2-chloro-3-methylpentane Arrange the compounds above in order of greatest reactivity to least reactivity for an SN 1 reaction. Select 4 | Select) • , (Select Select)
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the follo...
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the following from most stable to least stable. 2. 3. 4. Нас Н-с O H -н CH H CH,сH, сн,сн CH,CH 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 ÇF3 CF3 I II III
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following...
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I
2. Arrange the following in order of: (i) increasing reactivity with HCI. CH, CH CH H.C=C nec nec 20 cm H.C=C CH HC=C CH, (b) H.C=C NHCH, CHOCH, ОСН, (a) (c) (d) Teast reactive most reactive (ii) increasing stability. CH CH3 CH (a) (C) least stable most stable (iii) increasing heat of hydrogenation. CH,CH, CH=CH2 C H.CH O CH.CH CH3 CH,CH; CH,CH, (0) lowest heat of hydrogenation
Arrange the following weak bases in order of expected increasing stability. H CH CH3 H-C-H HC-N-CH, HỌC-C-CH, * *0 II III a. (least stable base) III <I < II (most stable base) b. (least stable base) I < II < III (most stable base) c. (least stable base) III <II < I (most stable base) d. (least stable base) I III < II (most stable base) e. (least stable base) II < 1 < III (most stable base) f. (least...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
Part 1 - Relative Properties (14 marks] Arrange the items in each set (three per set) in decreasing order with respect to the indicated property: Use the following code to indicate your answer: A. i>ii > iii B. i>iiiii C. ii > i>iii D. ii > iii >i E. iiiiii 1. Most to least stable carbocation: i. ii. 2. Highest to lowest reaction rate when treated with Nal/DMSO: i. ii. Br CI iii. Br 3. Highest to lowest reaction rate...
17) Write the products for the following reactions? 8 Pt A) excess сн,он. H2SO4 B) NH OH H2SO4 - C) Ph3P=CHCH3 i D) CH COOH 18) Predict the steps for the following conversion with proper reagents? (Hint: Protection and deprotection chemistry) 5 Pts осн он 5) Classify the following substituents as ELECTRON DONATING and ELECTRON WITHADRAWING? 3R -NH, -OCH, NO, -CH3 Electron Donating Electron Withdrawing 6) Classify the following compounds AROMATIC, ANTI AROMATIC and NON-AROMATIC? 2 PS con A) 7)...
Name the following compounds. Don't forget to specify stercochemistry when appropriate 2. Draw the structures of cis-2-ethylhexa-1,4-diene E-2,4-dimethylhexa-1,4-diene 3. Assign E or Z configuration to the following alkenes. (Circle highest priority groups) Br сн Вr сH,сн,Br NH2CH CH2CHCH CH,OH NH2 CH2CH2Br NEC Which of the following compounds that can exist as a mixture of stereoisomers? Draw each b. 1-chloro-2-methylbut-2-ene 4. a. 1-chloropropene c. 1,1-dichloroethene 5. Calculate the degree of unsaturation for codeine, CisHaiNO,. Show your work. 6. Rank the following...
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2. a 3. Which of the following is NOT a resonance structure of ozone? b. a. d. All are valid resonance structures C. 4. Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) II II d. Il<lll< C. I<ll<llI b. I<lll<ll a. Ill<ll< 5 What is the correct Lewis structure for CHsNCO? b. No 0 НС H,C- a. d....
Question 10 10 pts A) 1-chloro-4-methylpentane B) 2-chloro-2-methylpentane C) 3-chloropentane D) 2-chloro-3-methylpentane Arrange the compounds above in order of greatest reactivity to least reactivity for an SN 1 reaction. Select 4 | Select) • , (Select Select)
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the following from most stable to least stable. 2. 3. 4. Нас Н-с O H -н CH H CH,сH, сн,сн CH,CH 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 ÇF3 CF3 I II III
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I
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