3.26 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers...
chiral center in the following molecules with an asterisk. How many stereo 136 Mark each chir wers are possible for each molecules OH LCHCHCOOH CH, -COOH (b) CH-COOH HỌ CHCOOH но он
3.18 Mark each chiral center in the following molecules with an asterisk. How many stereoi- somers are possible for each molecule? CH COOH CH (a) CH,CCHCH, (b) HCOH (c) CH CHCHCOOH (d) CHCCH.CH, он CH, NH, CH,OH ОН CH,COOH le) HCOH (6) CH CH.CHCHCH, (g) HOCCOOH CH,OH CH,COOH
3.14 Which compounds contain chiral centers? (a) 2-Chloropentane (b) 3-Chloropentane (c) 3-Chloro-1-pentene (d) 1,2-Dichloropropane 3.18 Mark each chiral center in the following molecules with an asterisk. How many stereo isomers are possible for each molecule? CH COOH CH 0 (a) CH CCH=CH, (b) HCOH (c) CH,CHCHCOOH (d) CH,CCH.CH OH CH NH CH,OH OH CH,COOH (e) HCOH () CHCH.CHCHECH, (g) HOCCOOH CH,OH CH,COOH
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...
4. (26 points) Identify each chiral carbon in the molecules below with an asterisk (*) and assign R or s absolute configuration to each chiral carbon. Then, state (in the box provided) whether the molecules are enantiomers, identical, diastereomers, or not related. Hint: if it looks like a Fischer projection then it is a Fischer projection. ...1111 O піон аnd and .Ley O Era o C CHO CH,OH C. H oH and OHCH IH Сн,он
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...
4. For each pair of molecules, assian the confiquration at each chiral center as R or S Give the relationship between the pair of molecules es no relation, constitutional isomers, same molecule but not meso, some molecule and meso, enantiomers, or diastereomerS There should only be one possible answer. OH OH Constitutiona Soenars b. Br Br c. NH2 NH2 NH2 NH2 d. HO. но. ШЕи ши.
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
7. (15 pts) (a) Label each chiral center with an asterisk (*) in the molecules below. (iii) OH OH (b) Which of the above compounds are meso?
For each compound, mark the stereocenter (if any) with an asterisk, tell whether the molecule is chiral or achiral, and tell how many stereoisomers are possible. 1. For each compound, mark the stereocenters (if any) with an asterisk, tell whether the molecule is chiral or achiral, and tell how many stereoisomers are possible. Structure (mark stereocenters if Chiral or any) Number of possible stereoisomers Achiral? Br Cl