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Both a) and b) are Enantiomers
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6.(14) Determine the absolute configuration (R or S) for each chiral center in the following pairs...
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...
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers? Sort these pairs into the proper...
Are the following pairs identical, enantiomers, diastereomers,
or constitutional isomers?
Sort these pairs into the proper categories.
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers? Sort these pairs into the proper categories. Reset Help HC=CH2 CH2CH3 CH3 and CH3CH2H U CH,OH CHCH H-CH3 and CHH CH2CH3 CH OH CH3 HOCHZ H HC=CH2 CH3 CH3 CH,CH, CH3 CH,CH3 Ho-H ood HO-FH || - ci and H- C1 CH2CH3 HOH and H-OH H- Cland CiH CH3 CH and CH3 and...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What is the enantiomeric composition of a mixture that has a specific rotation of +88 degrees and has an enantiomeric excess of 40%. What are specific rotations of each enantiomer? 13. Determine if each of the following pairs of compounds represent enantiomers, diastereomers, constitutional isomers, or two molecules of the same compound CH H+CH н-н H -Br BH CHE
4. Assign R or S configuration to each chiral center in each of the following molecules...
4. Assign R or S configuration to each chiral center in each of the following molecules (A-D). Which are enantiomers and which are diastereoisomer? Hint: redraw the molecules if it makes it easier to visualize or use a modeling kit. H H A В CH Br Hас, Br 'CHs Нo Hас H он Br Br D CHз Hас Н. "CHз но Он CH3
1 Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there...
1 Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there is only one chiral center in the molecule, choose (none). H3C CH3 a Visited b H H3C Molecule #1 (B-thujene ): Center a: Center b: CH3 CH2 HO CH3 Molecule #2 ( rhodinol): Center a: Center b: CH3 OH CH, H3C CH3 H H H H CHE H H HO H CH3 H HO H 2-butanol OH CH3 CH a H b с The...
Identify the absolute configuration of the chirality centers in each of the following compounds as R...
Identify the absolute configuration of the chirality centers in each of the following compounds as R or S. Note: if multiple chirality centers are present, indicate the stereochemical designations as: RR, SS, RS, or SR. (Other terms used for chirality center include chiral center, stereocenter, and stereogenic center.) CO2H HW HO CH3 он
I've seen different answers for these same problems; please clarify. 1. For each of the following...
I've seen different answers for these same problems;
please clarify.
1. For each of the following pairs of drawings, identify the molecules as chiral or achiral and tell whether each pair represents molecules that are enantiomers, diastereomers, or identical. (a) CH (d) CH3 Br CI CI and CH,CH3 CH2CH CI H H Cl 10 C1 Cl 3 OH and , , ,он HO
Circle each chiral center and determine if it is R or S configuration ОН HHн H-...
Circle each chiral center and determine if it is R or
S configuration
ОН HHн H- CH3 он
1. Consider the following Fischer projection formulas of 3-amino-2-butanol. Decide which pairs of the formulas are...
1. Consider the following Fischer projection formulas of 3-amino-2-butanol. Decide which pairs of the formulas are related as enantiomers, which are related as diastereomers, and which represent identical molecules. Assign R or S absolute configuration to C2 and C3 for each structure, and then decide. List your results by letters in the spaces provided below. (5 pts) CH2CH3 O CH3CH2 - NH căH HS CH2CH3 H. NH2 SH CH3CH2CH CH,CH2 C- NH, SH Enantiomeric pairs: Diastereomeric pairs: Identical molecules:
8. Assign R or S configuration on the chiral center(s) in each of the given molecule...
8. Assign R or S configuration on the chiral center(s) in each of the given molecule Cl 牖. a) H CH2CH3 HO d) c) f)
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...
Are the following pairs identical, enantiomers, diastereomers,
or constitutional isomers?
Sort these pairs into the proper categories.
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers? Sort these pairs into the proper categories. Reset Help HC=CH2 CH2CH3 CH3 and CH3CH2H U CH,OH CHCH H-CH3 and CHH CH2CH3 CH OH CH3 HOCHZ H HC=CH2 CH3 CH3 CH,CH, CH3 CH,CH3 Ho-H ood HO-FH || - ci and H- C1 CH2CH3 HOH and H-OH H- Cland CiH CH3 CH and CH3 and...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What is the enantiomeric composition of a mixture that has a specific rotation of +88 degrees and has an enantiomeric excess of 40%. What are specific rotations of each enantiomer? 13. Determine if each of the following pairs of compounds represent enantiomers, diastereomers, constitutional isomers, or two molecules of the same compound CH H+CH н-н H -Br BH CHE
4. Assign R or S configuration to each chiral center in each of the following molecules (A-D). Which are enantiomers and which are diastereoisomer? Hint: redraw the molecules if it makes it easier to visualize or use a modeling kit. H H A В CH Br Hас, Br 'CHs Нo Hас H он Br Br D CHз Hас Н. "CHз но Он CH3
1 Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there is only one chiral center in the molecule, choose (none). H3C CH3 a Visited b H H3C Molecule #1 (B-thujene ): Center a: Center b: CH3 CH2 HO CH3 Molecule #2 ( rhodinol): Center a: Center b: CH3 OH CH, H3C CH3 H H H H CHE H H HO H CH3 H HO H 2-butanol OH CH3 CH a H b с The...
Identify the absolute configuration of the chirality centers in each of the following compounds as R or S. Note: if multiple chirality centers are present, indicate the stereochemical designations as: RR, SS, RS, or SR. (Other terms used for chirality center include chiral center, stereocenter, and stereogenic center.) CO2H HW HO CH3 он
I've seen different answers for these same problems;
please clarify.
1. For each of the following pairs of drawings, identify the molecules as chiral or achiral and tell whether each pair represents molecules that are enantiomers, diastereomers, or identical. (a) CH (d) CH3 Br CI CI and CH,CH3 CH2CH CI H H Cl 10 C1 Cl 3 OH and , , ,он HO
Circle each chiral center and determine if it is R or
S configuration
ОН HHн H- CH3 он
1. Consider the following Fischer projection formulas of 3-amino-2-butanol. Decide which pairs of the formulas are related as enantiomers, which are related as diastereomers, and which represent identical molecules. Assign R or S absolute configuration to C2 and C3 for each structure, and then decide. List your results by letters in the spaces provided below. (5 pts) CH2CH3 O CH3CH2 - NH căH HS CH2CH3 H. NH2 SH CH3CH2CH CH,CH2 C- NH, SH Enantiomeric pairs: Diastereomeric pairs: Identical molecules:
8. Assign R or S configuration on the chiral center(s) in each of the given molecule Cl 牖. a) H CH2CH3 HO d) c) f)
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