Assign R/S configurations to each chiral center in the following molecules. Clearly label the stereocenter and...
(23 pts.) Signature Label each stereocenter (chiral center) as Rors Labelech molecules chilor achiral Есі: CHS нон H- CH • OH р-н h) CH2OH в неон но -н нон ён,он CH2OH н -он но-де-н н- он снон achiral Chiral
1. (23 pts.) Label each stereocenter (chiral center) as Ror S. Label each molecule as chiral or achiral. CH ен-он H- CH3 . Он CH2OH Сн,он h) н он В ньон нон НО-Б-н ен,он но- н H-LOH CH OH
3. R, S Configurations Assign R, S configurations to each indicated chirality center in the molecules below. 14. OH 15. COOH ---H CH NH2 HỌN H -CH3 HO alanine norepinephrine - 18. 16. HOC / OHH HV CH; НС . H7 HO COH CH2 dihydrocarvone tartaric acid
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
4. Consider the molecules shown below. Assign the R/S configuration to each chiral center below. If you have difficulty, try building a molecule. (4 points) он Br н NH2 Br
please help with both questions Clearly assign priorities ( 1-4) for the substituents attached to the mark following molecules. (You do NOT need to determine R or S. Just assign priorities.) ed chirality center in each of the 1. он NH2 2. Circle (or ighlight) all chirality centers in a derivative of progesterone, a cortisone like molecule (shown). Make sure locate all the H's on the molecule first. но- он OH Clearly assign priorities ( 1-4) for the substituents attached...
4. (4 points) Assign absolute configuration (R or S) to each stereogenic center of the molecules shown below CH ОН ny NH2 OH
4,5,6 4. (1 pt.) Name the following compounds. Assign R S for chiral center and use E Z to describe double bond. 5. (1 pt.) How many tetrahedral stereocenters (chiral centers) are there in the molecule shown below. Mark each one with an asterisk. B. How many configurational isomers total are possible for this structure? A Number of tetrahedral stereocenters B. Total number of configurational isomers 6. (1 pt.) Identify all molecules that are chiral and the ones that are...
Assign R, S configurations to each indicated chirality center in the molecules below. A. OH B. COOH НО. ---H co CHANH CH; HAN HO H norepinephrine alaine 0 D. C. H E. HOC OH moje H н. CH3 H2C H НО CO H CH2 tartaric acid dihydrocaryone
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...