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3. 14 points: Consider the two molecules below: Molecule A Molecule B CH(CH3)2 CH(CH3)2 1 CH...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation for your choice. wale wabon ---- 2. For each molecule, draw the two possible chair conformers and circle the preferred conformer. a) cis-1,3-dimethylcyclohexane trans-1,4-dimethylcyclohexane 3. Draw all distinct isomers of dimethylcyclopropane and show the relationship as enantiomer, diastereomer or meso. 4. In each of the following pairs of compounds one is chiral and the other achiral, Circle the chiral compound in each. a) CH,CHCH=CH...
Draw the 3-D structures for the two compounds given below. For molecule A, draw the chair...
Draw the 3-D structures for the two compounds given below. For molecule A, draw the chair form, determine the number of chiral carbons and the absolute configuration for all of the chiral carbons. For molecule B, determine the number of stereoisomers, draw the 3-D structure of the 2S, 3R, 5S form of the molecule and give the correct name. Importantly, "place appropriate R or S symbols within the immediately proximity of the appropriate chiral carbon center and place your answers...
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C....
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C. R and R R and S S and S D. S and R 30 Give the configurations, reypectively, of the folowing two molecules H CH CHy A. B. C. R and R R and S Sand S D. S and R Which one of the following groups has the highest rank as assigned by the Cahn- Ingold-Prelog system for stereogenic (chiral) carbons?...
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...
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...
Need help with these Orgo Chem problems. mostly with the naming part. thank you Draw the most stable chair conforma...
Need help with these Orgo Chem problems. mostly with the
naming part.
thank you
Draw the most stable chair conformation of cis-1,2-dimethylcyclohexane 1) Draw the ring flip of the structure in question #1 2) Draw all contributing resonance structures for the following molecules. Make sure to show all arrows showing 3) movement of electrons. :c: Name the following molecules 4) 5) Assign R/S configuration to the molecule, 2-bromobutane, shown Br H H H HyC CH3 2-bromobutane Which of the following...
es of each 1. 2 points Two molecules that have the same connectivity and Es that...
es of each 1. 2 points Two molecules that have the same connectivity and Es that have the same connectivity and are nonsunerimposable mirror images of eac other are called 2. 4 points for the following molecule. label each stereocenter with an asterisk .am configurational isomers. tereocenter with an asterisk (*), and then draw all possible 3. 4 points Which of the following alkenes is more stable? Explain. 4. 2 points A molecule has two rings, three double bonds, and...
8. How many chiral carbons are present for the following molecule? CH3 HO–CH2-CH2-C-CH=CH-CH3 NH2 a. 4...
8. How many chiral carbons are present for the following molecule? CH3 HO–CH2-CH2-C-CH=CH-CH3 NH2 a. 4 b. 3 c. 2 d. 1 e. none
Solve 12-14 12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible?...
Solve 12-14
12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible? g. Draw each of these stereoisomers. h. Identify pairs of enantiomers and pairs of diastereomers. i. Build a model of the stereoisomer that has both OH groups pointing out. Also, build a model of the mirror image of this molecule. j. Do your two molecules represent enantiomers? Are they chiral? Fischer Projections 13. Build a model of 1-bromo-1-chloroethane. a. Draw a3D representation of this...
Please help to answer this, so I can understand this, Thanks !! 5.) (12 points) For...
Please help to answer this, so I can understand this, Thanks
!!
5.) (12 points) For 2,3-dimethylpentane, (CH3)2CH-CH(CH)2 (a) sighting along the indicated bond, draw all possible staggered conformers using Newman projections, identify the strains, ergy of each conformer, and rank the conformers according to stability (b) draw the least stable eclipsed conformer, show the strains, and give the total strain energy. (See Reference Section at end of test for strain-energy values.) (4 points) Cyclopropane has a total strain energy...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation for your choice. wale wabon ---- 2. For each molecule, draw the two possible chair conformers and circle the preferred conformer. a) cis-1,3-dimethylcyclohexane trans-1,4-dimethylcyclohexane 3. Draw all distinct isomers of dimethylcyclopropane and show the relationship as enantiomer, diastereomer or meso. 4. In each of the following pairs of compounds one is chiral and the other achiral, Circle the chiral compound in each. a) CH,CHCH=CH...
Draw the 3-D structures for the two compounds given below. For molecule A, draw the chair form, determine the number of chiral carbons and the absolute configuration for all of the chiral carbons. For molecule B, determine the number of stereoisomers, draw the 3-D structure of the 2S, 3R, 5S form of the molecule and give the correct name. Importantly, "place appropriate R or S symbols within the immediately proximity of the appropriate chiral carbon center and place your answers...
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C. R and R R and S S and S D. S and R 30 Give the configurations, reypectively, of the folowing two molecules H CH CHy A. B. C. R and R R and S Sand S D. S and R Which one of the following groups has the highest rank as assigned by the Cahn- Ingold-Prelog system for stereogenic (chiral) carbons?...
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...
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...
Need help with these Orgo Chem problems. mostly with the
naming part.
thank you
Draw the most stable chair conformation of cis-1,2-dimethylcyclohexane 1) Draw the ring flip of the structure in question #1 2) Draw all contributing resonance structures for the following molecules. Make sure to show all arrows showing 3) movement of electrons. :c: Name the following molecules 4) 5) Assign R/S configuration to the molecule, 2-bromobutane, shown Br H H H HyC CH3 2-bromobutane Which of the following...
es of each 1. 2 points Two molecules that have the same connectivity and Es that have the same connectivity and are nonsunerimposable mirror images of eac other are called 2. 4 points for the following molecule. label each stereocenter with an asterisk .am configurational isomers. tereocenter with an asterisk (*), and then draw all possible 3. 4 points Which of the following alkenes is more stable? Explain. 4. 2 points A molecule has two rings, three double bonds, and...
8. How many chiral carbons are present for the following molecule? CH3 HO–CH2-CH2-C-CH=CH-CH3 NH2 a. 4 b. 3 c. 2 d. 1 e. none
Solve 12-14
12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible? g. Draw each of these stereoisomers. h. Identify pairs of enantiomers and pairs of diastereomers. i. Build a model of the stereoisomer that has both OH groups pointing out. Also, build a model of the mirror image of this molecule. j. Do your two molecules represent enantiomers? Are they chiral? Fischer Projections 13. Build a model of 1-bromo-1-chloroethane. a. Draw a3D representation of this...
Please help to answer this, so I can understand this, Thanks
!!
5.) (12 points) For 2,3-dimethylpentane, (CH3)2CH-CH(CH)2 (a) sighting along the indicated bond, draw all possible staggered conformers using Newman projections, identify the strains, ergy of each conformer, and rank the conformers according to stability (b) draw the least stable eclipsed conformer, show the strains, and give the total strain energy. (See Reference Section at end of test for strain-energy values.) (4 points) Cyclopropane has a total strain energy...
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