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K. Make models of Rand S-2-Chlorobutane 1. Draw the 3-D structure (Fisher Projection Formula ojection Formula)...
22. Convert the following Fisher projection into a Haworth projection. Draw only the alpha anomer (12...
22. Convert the following Fisher projection into a Haworth
projection. Draw only the alpha anomer (12 points)
21. Are the following pairs of carbohydrates the same, completely different, constitutional isomers or stereoisomers? (12 points at 3 points each) CHO CHO CHO сњон он OH он он CH2OH он он он он он но он но но он он CH2OH CH2OH он CHO CHO CHO сњон он он он он он но он но но Ho но он но он OH...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)-2-methyl-3-bromo-hexane. 4. (4 pts) Draw a wedge and dash structure representing (1R 2R,3S)-1,2- dichloro3-ethylcyclohexane. 5. (4pts) 2-bromobutane is shown below. Is this (R)-2-bromobutane or (S)-2 bromobutane? 6. (6 pts) For each chiral carbon in ascorbic acid (vitamin C), shown below, assign Ror S to each stereocenter. How many stereoisomers of ascorbic acid are possible? OH HO ОН 7. (9 pts) (Are...
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral...
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral carbons. What is the maximum number of stereoisomers that a molecule with three chiral carbons can have? b) (18 points) Even though molecule A has three chiral carbon atoms, there are only four stereoisomers: A, B, C, and D. Explain why so few stereoisomers exist, using structures as part our answer. Your answer should take your answer to a) into account. CH,OH CH2OH CH...
1. For each of the structure star asymmetric carbon atoms, Lab with R and Sand draw...
1. For each of the structure star asymmetric carbon atoms, Lab with R and Sand draw any internal mirror plane of symmetry and label chiral or achiral molecules and meso structures H3C CH2Br OH I Br H -ОН HOH CI Н. TH Br H Br H OH HH CH2Br CH2CH3 a b C Br Br CI CI d СН3 CH3 CH3 ...Н H ОН CHз CHз нас CH3 f е
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon...
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon as (R) or (S). draw any internal mirror planes of symmetry. label the structure as chiral or achiral. label any meso structures. We were unable to transcribe this image
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
1. Use the following structure to draw Newman Projections (each subsequent projection with the back carbon...
1. Use the following structure to draw Newman Projections (each subsequent projection with the back carbon rotated 60" clockwise), Label the projection that is highest in energy and lowest in energy. Explicitly label all H's and CHY's. The arrow denotes the "front" carbon. Use this position to start your first Newman Projection Hae H | 改改改改 2. Finish each Newman Projection to correctly represent the following molecule in the box. OH Br CH3 0月
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve...
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve active opti call active 8. (3 pts) How many stereoisomers are there of 2,3-dibromobutane? 4 sleeoisamvers (8 pts) Circle the letter of the statements that are true. a. Racemic mixtures are optically active Enantiomers have specific rotations that are equal, but have opposite signs 9. o adtc) Achiral molecules are optically inactive d Meso compounds contain equal amounts of enantiomers 4pts) Complete the Fischer...
For 2-chloro-3-hexanol: Draw the structure of all the possible stereoisomers with Fischer Projection and Perspective Formulas...
For 2-chloro-3-hexanol: Draw the structure of all the possible stereoisomers with Fischer Projection and Perspective Formulas showing both eclipsed and staggered conformations). 2) Assign the configuration of all chiral centers with R or S. (3) Give the complete IUPAC name for each stereoisomers. (4) Indicate the relationship among the structures, indicating which are the threo or erythro enantiomer, and diastereoisomer pairs.
13) Draw the Newman projection of all of the staggered conformations of 1-bromo-2-chloroethe and circle the...
13) Draw the Newman projection of all of the staggered conformations of 1-bromo-2-chloroethe and circle the most stable structure(s). Label all of the structures as to whether the bromine chlorine interaction is gauche or anti. 14) Draw the two chair conformations of cis-4-tert-butylcyclohexanol, Circle the one that is the most stable. 15) How many chirality centers are in the following molecule? Mark them all with an asterisk. он он WOH он он 16) What is the relationship between the following...
22. Convert the following Fisher projection into a Haworth
projection. Draw only the alpha anomer (12 points)
21. Are the following pairs of carbohydrates the same, completely different, constitutional isomers or stereoisomers? (12 points at 3 points each) CHO CHO CHO сњон он OH он он CH2OH он он он он он но он но но он он CH2OH CH2OH он CHO CHO CHO сњон он он он он он но он но но Ho но он но он OH...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)-2-methyl-3-bromo-hexane. 4. (4 pts) Draw a wedge and dash structure representing (1R 2R,3S)-1,2- dichloro3-ethylcyclohexane. 5. (4pts) 2-bromobutane is shown below. Is this (R)-2-bromobutane or (S)-2 bromobutane? 6. (6 pts) For each chiral carbon in ascorbic acid (vitamin C), shown below, assign Ror S to each stereocenter. How many stereoisomers of ascorbic acid are possible? OH HO ОН 7. (9 pts) (Are...
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral carbons. What is the maximum number of stereoisomers that a molecule with three chiral carbons can have? b) (18 points) Even though molecule A has three chiral carbon atoms, there are only four stereoisomers: A, B, C, and D. Explain why so few stereoisomers exist, using structures as part our answer. Your answer should take your answer to a) into account. CH,OH CH2OH CH...
1. For each of the structure star asymmetric carbon atoms, Lab with R and Sand draw any internal mirror plane of symmetry and label chiral or achiral molecules and meso structures H3C CH2Br OH I Br H -ОН HOH CI Н. TH Br H Br H OH HH CH2Br CH2CH3 a b C Br Br CI CI d СН3 CH3 CH3 ...Н H ОН CHз CHз нас CH3 f е
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon as (R) or (S). draw any internal mirror planes of symmetry. label the structure as chiral or achiral. label any meso structures. We were unable to transcribe this image
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
1. Use the following structure to draw Newman Projections (each subsequent projection with the back carbon rotated 60" clockwise), Label the projection that is highest in energy and lowest in energy. Explicitly label all H's and CHY's. The arrow denotes the "front" carbon. Use this position to start your first Newman Projection Hae H | 改改改改 2. Finish each Newman Projection to correctly represent the following molecule in the box. OH Br CH3 0月
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve active opti call active 8. (3 pts) How many stereoisomers are there of 2,3-dibromobutane? 4 sleeoisamvers (8 pts) Circle the letter of the statements that are true. a. Racemic mixtures are optically active Enantiomers have specific rotations that are equal, but have opposite signs 9. o adtc) Achiral molecules are optically inactive d Meso compounds contain equal amounts of enantiomers 4pts) Complete the Fischer...
For 2-chloro-3-hexanol: Draw the structure of all the possible stereoisomers with Fischer Projection and Perspective Formulas showing both eclipsed and staggered conformations). 2) Assign the configuration of all chiral centers with R or S. (3) Give the complete IUPAC name for each stereoisomers. (4) Indicate the relationship among the structures, indicating which are the threo or erythro enantiomer, and diastereoisomer pairs.
13) Draw the Newman projection of all of the staggered conformations of 1-bromo-2-chloroethe and circle the most stable structure(s). Label all of the structures as to whether the bromine chlorine interaction is gauche or anti. 14) Draw the two chair conformations of cis-4-tert-butylcyclohexanol, Circle the one that is the most stable. 15) How many chirality centers are in the following molecule? Mark them all with an asterisk. он он WOH он он 16) What is the relationship between the following...
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