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(9 points) Given the 2R, JS isomer below, draw the other enantiomer and the...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
Use the following four structures to answer questions #16- #18 below. H H Br Br Br...
Use the following four structures to answer questions #16- #18 below. H H Br Br Br Br Br Br Br Br H H H A в C D 16. Which are diastercomers? (a) A and D (b) A and B (c) B and C (d) None of these are diastereomers 17. Which are enantiomers? (a) A and D (b) A and B (c) B and C (d) A and C 18. Which isa meso compound? (a) A (b) в (c)...
6. Provide the IUPAC names for the compounds below Name: 7. Draw the following: cis-1-isobutyl-2-propyleyclopentane 8....
6. Provide the IUPAC names for the compounds below Name: 7. Draw the following: cis-1-isobutyl-2-propyleyclopentane 8. Label the indicated atoms in the structure below as 1º, 2º, 3º, or 4º. PB A A B co 9. Draw Newman projections for the day-diethylane about the C4CS bond, Circle the most stable conforme if you need additional space, please feel free to the backside of this paper 10. Draw the chair conformation and ring-flip for the given compound. Calculate the sterie strain...
1. (10 points) la. Rank the following substrates from most (1) to least reactive (4) in...
1. (10 points) la. Rank the following substrates from most (1) to least reactive (4) in an SN2 reaction. Explain the reason for your choice Br ABT Chrobr 1b. Rank the following substrates from most (1) to least reactive (3) in an SNI reaction. Explain the reason for your choice lc. What is the nucleophile in the following reaction? ~ Br + CHỌCoona - OOCCH3 OOCCH + M NaBr 1d. What is the electrophile in the following reaction? Br +...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E)...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
please help with these chemistry problems 2. (5 points) Why does this reaction occur via a...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
7. The IUPAC name for the followe d in the OH controls a) 3-chloro-2-methylcyclohexanol 5-chloro-2-methylcyclohexanol 2-methyl-3-chlorocyclohexanol...
7. The IUPAC name for the followe d in the OH controls a) 3-chloro-2-methylcyclohexanol 5-chloro-2-methylcyclohexanol 2-methyl-3-chlorocyclohexanol d) 2-methyl-5 chlorocyclohexanol e) 1-chloro-4-methylcyclohexanol Which of the following cannot be an electrophile? a) H b) CH2-CH; c) 'NO ) BF; d) Fee ased on the following enery diagram, which compound is formed slowly Reaction ) B from A c) Cfrom B d) from C a) A from B b 10. Which of the following has the highest priority? -0-H -CH=CHCH -CH=NCH -SC-CH; 11....
For the first six blanks, please choose only options from the dropdown menus provided below the...
For the first six blanks, please choose only options from the
dropdown menus provided below the pictures.
Dropdown Menus:
1. methyl, primary (unhindered), primary (hindered), secondary,
tertiary
2. poor, weakly basic, strongly basic (hindered), strongly basic
(unhindered)
3. protic, aprotic
4. SN2, SN1, E1, E2, SN2 AND E2, SN1 AND E1, No Reaction
5. randomized, inverted, predictable but not inverted,
unchanged
6. a planar carbocation intermediate, backside attack transition
state, anti-periplanar transition state, other
CH3OH ~ ??? Br - în...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23,...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
Use the following four structures to answer questions #16- #18 below. H H Br Br Br Br Br Br Br Br H H H A в C D 16. Which are diastercomers? (a) A and D (b) A and B (c) B and C (d) None of these are diastereomers 17. Which are enantiomers? (a) A and D (b) A and B (c) B and C (d) A and C 18. Which isa meso compound? (a) A (b) в (c)...
6. Provide the IUPAC names for the compounds below Name: 7. Draw the following: cis-1-isobutyl-2-propyleyclopentane 8. Label the indicated atoms in the structure below as 1º, 2º, 3º, or 4º. PB A A B co 9. Draw Newman projections for the day-diethylane about the C4CS bond, Circle the most stable conforme if you need additional space, please feel free to the backside of this paper 10. Draw the chair conformation and ring-flip for the given compound. Calculate the sterie strain...
1. (10 points) la. Rank the following substrates from most (1) to least reactive (4) in an SN2 reaction. Explain the reason for your choice Br ABT Chrobr 1b. Rank the following substrates from most (1) to least reactive (3) in an SNI reaction. Explain the reason for your choice lc. What is the nucleophile in the following reaction? ~ Br + CHỌCoona - OOCCH3 OOCCH + M NaBr 1d. What is the electrophile in the following reaction? Br +...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
7. The IUPAC name for the followe d in the OH controls a) 3-chloro-2-methylcyclohexanol 5-chloro-2-methylcyclohexanol 2-methyl-3-chlorocyclohexanol d) 2-methyl-5 chlorocyclohexanol e) 1-chloro-4-methylcyclohexanol Which of the following cannot be an electrophile? a) H b) CH2-CH; c) 'NO ) BF; d) Fee ased on the following enery diagram, which compound is formed slowly Reaction ) B from A c) Cfrom B d) from C a) A from B b 10. Which of the following has the highest priority? -0-H -CH=CHCH -CH=NCH -SC-CH; 11....
For the first six blanks, please choose only options from the
dropdown menus provided below the pictures.
Dropdown Menus:
1. methyl, primary (unhindered), primary (hindered), secondary,
tertiary
2. poor, weakly basic, strongly basic (hindered), strongly basic
(unhindered)
3. protic, aprotic
4. SN2, SN1, E1, E2, SN2 AND E2, SN1 AND E1, No Reaction
5. randomized, inverted, predictable but not inverted,
unchanged
6. a planar carbocation intermediate, backside attack transition
state, anti-periplanar transition state, other
CH3OH ~ ??? Br - în...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
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