7) a) Chiral center is that carbon which is attached to four different groups.
b) Compound ii) and III) contain internal plane of symmetry thus it is meso.
7. (15 pts) (a) Label each chiral center with an asterisk (*) in the molecules below....
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
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...
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)
Assign R/S configurations to each chiral center in the following molecules. Clearly label the stereocenter and show your priority ranking. If no chiral centers exist, write "achiral." (15 pts) GEHICH ANTICHE VSH он "CH, HjC NH2 OH
Label each of these molecules as chiral, achiral, or achiral and meso by circling the a word under each structure. Hint: Begin by writing the definitions of the three ternis. ?? OH Chiral Achiral Achiral & meso Chiral Achiral Achiral&meso Chiral Achiral Achiral & meso Chiral Achiral Achiral&meso Chiral Achiral Achiral & meso ?? NH2 Chiral Achiral Achiral & meso Chiral Achiral Achiral & meso Chiral Achiral Achiral&meso Chiral Achiral Achiral& meso Chiral Achiral Achiral & meso
1) Label all the chiral molecules with a circle. Label all meso compounds with a square. (3 ps) OH OH OH CI. BO CI, Br
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
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
(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