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4. (26 points) Identify each chiral carbon in the molecules below with an asterisk (*) and...
cle the chiral bound(s) below, and indicate each chiral carbon with an asterisk. OH CI (2)...
cle the chiral bound(s) below, and indicate each chiral carbon with an asterisk. OH CI (2) Consider the two structures below. க... CF3 H They are: and a) enantiomers H H b) constitutional isomers c) diastereomers d) none of the above
help needed in andwering this full question Question Three a. For each chiral centre in the...
help needed in andwering this full question
Question Three a. For each chiral centre in the following molecules, assign an Ror S configuration. For full marks, you must clearly indicate the order of priority of the groups attached to each chiral centre, OH OH CH3 CH(OCH3)2 CHO b. Draw all stereoisomers of 2,3-dibromobutane (use 3D dash/wedge structures or Fischer projections to depict stereochemistry). Clearly identify enantiomers, diastereomers and meso compounds. Be sure to identify the stereocentres as Rors
3.26 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers...
3.26 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers are possible for each molecule? OH (а) CHCHCHCоон но он CH, — соон b) CHнсоон но-СН-СООН (c)
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in...
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in if the compound is chiral or achiral. 1.C. Determine the stereochemical relationship between each possible pair. Br Br Br Br A B D chiral O achiral OO chiral achiral с Ochiral achiral 8 chiral achiral A and B: 000 identical enantiomers diastereomers none of these A and C: ооо identical enantiomers O diastereomers none of these A and D: оооооо O identical enantiomers diastereomers...
4. Put an asterisk (*) next to each chiral center in the structure of erythronolide B,...
4. Put an asterisk (*) next to each chiral center in the structure of erythronolide B, a metabone precursor to the commercial antibiotic, erythromycin. H3C .CH OH CH3 нс, Toi Erythronolide R Нас Анас OH 5. Determine whether the chirality centers in the following molecules have Rors configuration. (a) H (b) OCH2CH3 (c) OH NO-C-OH HC-CH3 H₃C-C-CH₂OH (a) HOH (b) c) HOCHZ HOCH2 CO2H 6. Are the following molecules chiral or achiral? If they are chiral, put an asterisk next...
19-26 thanks! 19-29* PART 3: 2,3-BUTANEDIOL CH-CH(OH)-CH(OH)-CH, mirror images, not superimposable Build as many models of...
19-26 thanks!
19-29*
PART 3: 2,3-BUTANEDIOL CH-CH(OH)-CH(OH)-CH, mirror images, not superimposable Build as many models of 2,3-butanediol as you can. First, attach two carbons with a single bond. To each carbon add one carbon, one hydrogen, and one oxygen. To complete the structure, Ti the remaining hydrogen atoms. Remember, a model is not different if it is completely superimposable on one already constructed! 13. How many stereochemically different models are possible for 2,3-butanediol? 14. What characteristic does one of these...
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...
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...
6.(14) Determine the absolute configuration (R or S) for each chiral center in the following pairs...
6.(14) Determine the absolute configuration (R or S) for each chiral center in the following pairs of molecules. Also determine if the pairs are identical, enantiomers or diastereomers. CH3 ŅH uta ÇO2H a) b) & 11 CO2H & HO OH NH CH3 CH2 Cl -H CH3 CH3
4 a) Identify which molecules are chiral and which are achiral. For the chiral molecules stale...
4 a) Identify which molecules are chiral and which are achiral. For the chiral molecules stale the maximum mumber of possihle sterooisomers thal are possible for he molocales polats) H H coH EL b) For the following pairs of molecules give the confimuration of each chiral center aand indicate the relatioeship between the two molecules as enantiomers, diastereomers or same molecule: (13 points) H .CHs H. CM3 C 3 (O,H N CHs C9H NHs -H H -H + Ch H...
cle the chiral bound(s) below, and indicate each chiral carbon with an asterisk. OH CI (2) Consider the two structures below. க... CF3 H They are: and a) enantiomers H H b) constitutional isomers c) diastereomers d) none of the above
help needed in andwering this full question
Question Three a. For each chiral centre in the following molecules, assign an Ror S configuration. For full marks, you must clearly indicate the order of priority of the groups attached to each chiral centre, OH OH CH3 CH(OCH3)2 CHO b. Draw all stereoisomers of 2,3-dibromobutane (use 3D dash/wedge structures or Fischer projections to depict stereochemistry). Clearly identify enantiomers, diastereomers and meso compounds. Be sure to identify the stereocentres as Rors
3.26 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers are possible for each molecule? OH (а) CHCHCHCоон но он CH, — соон b) CHнсоон но-СН-СООН (c)
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in if the compound is chiral or achiral. 1.C. Determine the stereochemical relationship between each possible pair. Br Br Br Br A B D chiral O achiral OO chiral achiral с Ochiral achiral 8 chiral achiral A and B: 000 identical enantiomers diastereomers none of these A and C: ооо identical enantiomers O diastereomers none of these A and D: оооооо O identical enantiomers diastereomers...
4. Put an asterisk (*) next to each chiral center in the structure of erythronolide B, a metabone precursor to the commercial antibiotic, erythromycin. H3C .CH OH CH3 нс, Toi Erythronolide R Нас Анас OH 5. Determine whether the chirality centers in the following molecules have Rors configuration. (a) H (b) OCH2CH3 (c) OH NO-C-OH HC-CH3 H₃C-C-CH₂OH (a) HOH (b) c) HOCHZ HOCH2 CO2H 6. Are the following molecules chiral or achiral? If they are chiral, put an asterisk next...
19-26 thanks!
19-29*
PART 3: 2,3-BUTANEDIOL CH-CH(OH)-CH(OH)-CH, mirror images, not superimposable Build as many models of 2,3-butanediol as you can. First, attach two carbons with a single bond. To each carbon add one carbon, one hydrogen, and one oxygen. To complete the structure, Ti the remaining hydrogen atoms. Remember, a model is not different if it is completely superimposable on one already constructed! 13. How many stereochemically different models are possible for 2,3-butanediol? 14. What characteristic does one of these...
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...
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...
6.(14) Determine the absolute configuration (R or S) for each chiral center in the following pairs of molecules. Also determine if the pairs are identical, enantiomers or diastereomers. CH3 ŅH uta ÇO2H a) b) & 11 CO2H & HO OH NH CH3 CH2 Cl -H CH3 CH3
4 a) Identify which molecules are chiral and which are achiral. For the chiral molecules stale the maximum mumber of possihle sterooisomers thal are possible for he molocales polats) H H coH EL b) For the following pairs of molecules give the confimuration of each chiral center aand indicate the relatioeship between the two molecules as enantiomers, diastereomers or same molecule: (13 points) H .CHs H. CM3 C 3 (O,H N CHs C9H NHs -H H -H + Ch H...
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