3.18 Mark each chiral center in the following molecules with an asterisk. How many stereoi- somers...
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
3.14 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
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)
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...
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
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?
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
Chiral-center diestereomers Mark the chifal ceramictacolare Mark the chiral centers om 11-18. If no chiral center, then no enantiomers. Draw out Lewis structures if necessary HFI2 -CH=CH₂ CH3 3 CH₂ CH3 NONG CH₂ - CH₂ none MONE ② CHICIF 6 CH₃ -CH-CH-CE A OH NH₂ NONE NE Nhy C о варче во a aa oorport 8 3 см, ен-би-сон ® се см-га си, OH
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to indicate the chiral center in each optically active molecule. OH NH2 CH3-CH-COOH glycine CH3CH-COOH lactic acids ОН row S1 HOCH CH-CH2OH cibo no glycerol DUO 2. In this experiment, you found that a molecule with one chiral center has two optical isomers, and a com- pound with two chiral centers has four optical isomers. How many optical isomers are possible for a com- pound...
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...