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29. Given the reaction below. which product is most likely to form as the major product...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
Lucy propere (d) isopentane and 2-methylbutane 3. Which one of the following hexanes has the lowest...
Lucy propere (d) isopentane and 2-methylbutane 3. Which one of the following hexanes has the lowest boiling point? (a) 3-methylpentane (b) 2-methylpentane (c) hexane (d) 2,2-dimethylbutane 4. A CH3 In the lowest energy conformation of the compound to the right, how many alkyl substituents are axial? (a) 0 (c) 2 (b) 1 (d) 3 (CH),CHWV CH.CH 5. Identify the correct IUPAC name for the structure shown below. (a) 1-tert-butyl-2-chloro-5-bromocyclooctane (b) 5-bromo-1-tert-butyl-2-chlorocyclooctane (c) 1-bromo-4-chloro-5-tert-butylcyclooctane (d) 1-bromo-4-tert-butyl-5-chlorocyclooctane (e) 1-tert-butyl-4-bromo-7-chlorocyclooctane 6. Which of...
6. What is the IUPAC name of the following compound? 210 Brk IR Içi 2 2...
6. What is the IUPAC name of the following compound? 210 Brk IR Içi 2 2 A) (1R,3R,5R)-1-bromo-3-chloro-5-fluorocyclohexane B) (1R,3R,5S)-1-bromo-3-chloro-5-fluorocyclohexane C) (19,3S,5R)-1-bromo-3-chloro-5-fluorocyclohexane D) (15,35,5S)-1-bromo-3-chloro-5-fluorocyclohexane E) None of these choices.
What are the substituent positions in the most stable form of the following molecule? #1: What...
What are the substituent positions in the most stable form of the
following molecule?
#1: What are the substituent positions in the most stable form of the following molecule? A. 3 axial methyls, equatorial t-butyl B. 2 axial methyls, 1 equatorial methyl and t-butyl C. 1 axial methyl, 2 equatorial methyls and t-butyl D. Axial t-butyl, 3 equatorial methyls E. 1 axial methyl and t-butyl, 2 equatorial methyls F. 2 axial methyls and t-butyl, 1 equatorial methyl G. All substituents...
Which conformation(s) of the two isomers A & B shown below is/are the most stable: А...
Which conformation(s) of the two isomers A & B shown below is/are the most stable: А B Me Me (a) A, with the methyl group axial (b) A, with the methyl group equatorial (c) B, with the methyl group axial (d) B, with the methyl group equatorial (e) The conformations described in (a) and (b) are equally the most stable
15. Which conformation(s) of the two isomers A & B shown below is/are the most stable:...
15. Which conformation(s) of the two isomers A & B shown below is/are the most stable: B Me Me (a) A, with the methyl group axial (b) A, with the methyl group equatorial (c) B, with the methyl group axial (d) B, with the methyl group equatorial (e) The conformations described in (a) and (b) are equally the most stable
- Which conformation(s) of the two isomers A & B shown below is/are the most stal...
- Which conformation(s) of the two isomers A & B shown below is/are the most stal A B Me Me a) A, with the methyl group axial b) A, with the methyl group equatorial c) B, with the methyl group axial d) B, with the methyl group equatorial e) The conformations described in (a) and (b) are equally the most stable
Reaction Coordinate D)2 03 is incorrect Which of the following statment about thens A) All of...
Reaction Coordinate D)2 03 is incorrect Which of the following statment about thens A) All of the hydrogen atoms are in the same plane R) There is a total of five siga hands. The H-C-H hond angles are approximately 109.5" D) The carbon atoms are sp2 hybridized The H-C-H band angles are approximately 120". Which of the following has two equatorial alkyl substituents in its most stable conformation A) 1,2-dimethylcyclohexane B) -1,3-diethylcyclohen 13-diethylcyclohexane D -1,4-diethyleyelo n e E) LI-dimethylcyclohexane 7)...
How would you draw the most stable conformation of trans-1-ethyl-3-methylcyclohexane? Axial ethyl group on C-1, Axial...
How would you draw the most stable conformation of
trans-1-ethyl-3-methylcyclohexane?
Axial ethyl group on C-1, Axial methyl group on C-3
Axial ethyl group on C-1, Equatorial methyl group on C-3
Equatorial ethyl group on C-1, Axial methyl group on C-3
Equatorial ethyl group on C-1, Equatorial methyl group on C-3
Choices b and c are both correct
Choices a and d are both correct
How would you draw the most stable conformation of
trans-1-chloro-2-fluorocyclohexane?
Axial chlorine on C-1, Axial fluorine...
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D)...
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D) (CH3)3CCHCICH3 E) CICH2C(CH3)CH2CH3 17) What is the IUPAC name of the compound shown below? нс, CH2CH3 С" A) (15,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane B) (IR,3S)-1,3-dichloro-1-methyl-3-ethylcyclopentane C) (IR.45)-1,4-dichloro-1-ethyl-4-methylcyclopentane D) (IR,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane E) (IS3R)-1,3-dichloro-3-ethyl-1-methylcyclopentane 18) What type of intermediate is present in the SN2 reaction of cyanide with bromoethane? A) carbocation B) free radical C) carbene D) carbanion E) This reaction has no intermediate 19) Which of the following alkyl chlorides...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
Lucy propere (d) isopentane and 2-methylbutane 3. Which one of the following hexanes has the lowest boiling point? (a) 3-methylpentane (b) 2-methylpentane (c) hexane (d) 2,2-dimethylbutane 4. A CH3 In the lowest energy conformation of the compound to the right, how many alkyl substituents are axial? (a) 0 (c) 2 (b) 1 (d) 3 (CH),CHWV CH.CH 5. Identify the correct IUPAC name for the structure shown below. (a) 1-tert-butyl-2-chloro-5-bromocyclooctane (b) 5-bromo-1-tert-butyl-2-chlorocyclooctane (c) 1-bromo-4-chloro-5-tert-butylcyclooctane (d) 1-bromo-4-tert-butyl-5-chlorocyclooctane (e) 1-tert-butyl-4-bromo-7-chlorocyclooctane 6. Which of...
6. What is the IUPAC name of the following compound? 210 Brk IR Içi 2 2 A) (1R,3R,5R)-1-bromo-3-chloro-5-fluorocyclohexane B) (1R,3R,5S)-1-bromo-3-chloro-5-fluorocyclohexane C) (19,3S,5R)-1-bromo-3-chloro-5-fluorocyclohexane D) (15,35,5S)-1-bromo-3-chloro-5-fluorocyclohexane E) None of these choices.
What are the substituent positions in the most stable form of the
following molecule?
#1: What are the substituent positions in the most stable form of the following molecule? A. 3 axial methyls, equatorial t-butyl B. 2 axial methyls, 1 equatorial methyl and t-butyl C. 1 axial methyl, 2 equatorial methyls and t-butyl D. Axial t-butyl, 3 equatorial methyls E. 1 axial methyl and t-butyl, 2 equatorial methyls F. 2 axial methyls and t-butyl, 1 equatorial methyl G. All substituents...
Which conformation(s) of the two isomers A & B shown below is/are the most stable: А B Me Me (a) A, with the methyl group axial (b) A, with the methyl group equatorial (c) B, with the methyl group axial (d) B, with the methyl group equatorial (e) The conformations described in (a) and (b) are equally the most stable
15. Which conformation(s) of the two isomers A & B shown below is/are the most stable: B Me Me (a) A, with the methyl group axial (b) A, with the methyl group equatorial (c) B, with the methyl group axial (d) B, with the methyl group equatorial (e) The conformations described in (a) and (b) are equally the most stable
- Which conformation(s) of the two isomers A & B shown below is/are the most stal A B Me Me a) A, with the methyl group axial b) A, with the methyl group equatorial c) B, with the methyl group axial d) B, with the methyl group equatorial e) The conformations described in (a) and (b) are equally the most stable
Reaction Coordinate D)2 03 is incorrect Which of the following statment about thens A) All of the hydrogen atoms are in the same plane R) There is a total of five siga hands. The H-C-H hond angles are approximately 109.5" D) The carbon atoms are sp2 hybridized The H-C-H band angles are approximately 120". Which of the following has two equatorial alkyl substituents in its most stable conformation A) 1,2-dimethylcyclohexane B) -1,3-diethylcyclohen 13-diethylcyclohexane D -1,4-diethyleyelo n e E) LI-dimethylcyclohexane 7)...
How would you draw the most stable conformation of
trans-1-ethyl-3-methylcyclohexane?
Axial ethyl group on C-1, Axial methyl group on C-3
Axial ethyl group on C-1, Equatorial methyl group on C-3
Equatorial ethyl group on C-1, Axial methyl group on C-3
Equatorial ethyl group on C-1, Equatorial methyl group on C-3
Choices b and c are both correct
Choices a and d are both correct
How would you draw the most stable conformation of
trans-1-chloro-2-fluorocyclohexane?
Axial chlorine on C-1, Axial fluorine...
17) Which of the following is a secondary halide? A) CICH2CH2C(CH3)3 B) CICH2CH2CH(CH3)2 C) (CH3)2CCICH2CH3 D) (CH3)3CCHCICH3 E) CICH2C(CH3)CH2CH3 17) What is the IUPAC name of the compound shown below? нс, CH2CH3 С" A) (15,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane B) (IR,3S)-1,3-dichloro-1-methyl-3-ethylcyclopentane C) (IR.45)-1,4-dichloro-1-ethyl-4-methylcyclopentane D) (IR,3S)-1,3-dichloro-l-ethyl-3-methylcyclopentane E) (IS3R)-1,3-dichloro-3-ethyl-1-methylcyclopentane 18) What type of intermediate is present in the SN2 reaction of cyanide with bromoethane? A) carbocation B) free radical C) carbene D) carbanion E) This reaction has no intermediate 19) Which of the following alkyl chlorides...
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