Using the priority rule, identify the configuration at each chiral center and the configuration of the double bond: For a chiral center please type EXACTLY one of the following: R or S or neither if it is not a chiral center. For a double bond please type EXACTLY one of the following: E or Z or neither if the double bond has no stereochemistry. Compound 1: humulone (a-lupulic acid) HO OH ° Red center: S OH Green bond: neither Compound 2: H H OH H Red center: neither Compound 3: andrographolide HO" HO" HO Top Green bond: E Bottom Green bond: neither Compound 4: Please determine the stereochemistry using the hint below and name this compound. Hint: Use the link and check Rule 5 and Fig. 18: http://ursula.chem.yale.edu/~chem220/chem220js/STUDYAIDS/isomers/CIP%20rules%20NEW.html >> OH Red center: Name: Compound 5: sucrose HO HO OH 2 OH HO 1 OH HO

Using the priority rule, identify the configuration at each chiral center and the configuration of the double bond: For a chiral center please type EXACTLY one of the following: R or S or neither if it is not a chiral center. For a double bond please type EXACTLY one of the following: E or Z or neither if the double bond has no stereochemistry. Compound 1: humulone (a-lupulic acid) HO OH ° Red center: S OH Green bond: neither Compound 2: H H OH H Red center: neither Compound 3: andrographolide HO" HO" HO Top Green bond: E Bottom Green bond: neither Compound 4: Please determine the stereochemistry using the hint below and name this compound. Hint: Use the link and check Rule 5 and Fig. 18: http://ursula.chem.yale.edu/~chem220/chem220js/STUDYAIDS/isomers/CIP%20rules%20NEW.html >> OH Red center: Name: Compound 5: sucrose HO HO OH 2 OH HO 1 OH HO

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 19E

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Using the priority rule, identify the configuration at each chiral center and the configuration of the double bond: For a chiral center please type EXACTLY one of the following: R or S or neither if it is not a chiral center. For a double bond please type EXACTLY one of the following: E or Z or neither if the double bond has no stereochemistry.
Question 7 Using the priority rule, identify the configuration at each chiral center and the configuration of the double bond: For a chiral center please type EXACTLY one of the following: R or S or neither if it is not a chiral center. For a double bond please type EXACTLY one of the following: E or Z or neither if the double bond has no stereochemistry. Compound 1: humulone (a-lupulic acid) OH O HO Red center: Green bond: Compound 2: OH H OH Red center: Compound 3: andrographolide HO*** HO... Top Green bond: Bottom Green bond: Compound 4: Please determine the stereochemistry using the hint below and name this compound. Hint: Use the link and check Rule 5 and Fig. 18: http://ursula.chem.yale.edu/-chem220/chem220js/STUDYAIDS/isomers/CIP%20rules%20NEW.html OH Red center: Name: Compound 5: sucrose HO. HO OH OH HO OH HO OH Red center 1: Red center 2:
2.) For the following 12 compounds, please write the number of chiral centers (0 if there are none) and label each molecule as either chiral or achiral. H3C H3C, но, H3C H3C H3C H3C H3C" H3C CH3 CHs OH он он H3C он он H3C., он H3C, H3C H3C H3C он но H3C ÓH H3C H3C H3C" но OH он CH3
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). OH H3C- -CH3 Molecule #1 (sobrerol): Center a: Center b: Molecule #2 (pulegone ): Center a: V Center b: HO H3C a CH3 CH3 CH3
Q1. Draw the enantiomers for the following molecules and assign all chiral centres as R or S: F |C(CH3)3 PH2 Сно H- Br ČH2OH H. Q2. Label all stereogenic centres as R or S. No explanation is required. CH3 CH2CH3 H. D INH2 N(CH3)2 H3CH2CO- OCH3
Question 4 of 30 O Macmillan Learning A prochirality center is a precursor to a chirality center. Identify the prochirality centers (if any) in each structure. H3C |||| ··|||| I CI CH H CH3 H == H3C. CH3 -C. CH3 Answer Bank prochirality center
5. Assign R or S configuration to each chirality center in the following molecules: CH3 CH3 Br (a) Br (b) (c) HaCH3 HaBr H OH CH3 H3C H OH H CH3 OH Which of these compounds are enantiomers, and which are diastereomers?
Q1: For each of the compounds described by the following names 1. draw a three-dimensional representation. 2. star (*) each chiral center. 3. draw any planes of symmetry. 4. draw any enantiomer. 5. draw any diastereomers. 6. label each structure you have drawn as chiral or achiral. (a) (S)-2-chlorobutane (c) (2R,35)-2,3-dibromohexane (e) meso-hexane-3,4-diol, CH,CH,CH(OH)CH(OH)CH;CH, (b) (R)-1,1,2-trimethylcyclohexane (d) (1R, 2R)-1,2-dibromocyclohexane
Classify the following compounds as chiral, achiral (but not meso), or meso. 1st structure: 2nd structure: 3rd structure:
2.) For the following 12 compounds, please write the number of chiral centers (0 if there are none) and label each molecule as either chiral or achiral. H3C H3C HO H3C H3C H3C H3C H3C H3C CH3 CH3 OH OH H3C OH OH OH он H3C H,C H3C, H3C H3C OH H3C H3C OH HO H3C но OH OH H3C OH CH3
I. Given the following compounds: а. НО-СН2 — СH— СH | b. CH3- CH2 – CH OH į. ii. Determine and give the number of chiral carbon Draw the stereoisomers ii. Identify the enantiomers Identify the diastereomers iv.
Make sure to answer the quesi to chem below Using the priority rule, identify the configuration at each chiral center and the configuration of the double bond: For a chiral center please type EXACTLY one of the following: R or S or neither if it is not a chiral center. For a double bond please type EXACTLY one of the following: E or Z or neither if the double bond has no stereochemistry.