(23 pts.) Signature Label each stereocenter (chiral center) as Rors Labelech molecules chilor achiral Есі: CHS...
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
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
Carbohydrates 1. Label each of the monosaccharides shown below as a triose, tetrose, pentoso, or hexose. но CH OH HT -он - он Н - ОН но -н но -Н но -н нон сньон он но -н НОН CH OH нон нон нон снон CH OH сон сон H- OH H- -он OH cң, он н-с-он Сн,он снон 2. Label each of the monosaccharides shown above as a ketose or aldose. 3. Identify all of the chiral carbons in the...
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. 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...
5.50 For each molecule in Problem 5.49, identify all chiral centers that exist. Which of those molecule 5.51 Draw each of the following molecules in a zigzag conformation. (a) CH,он (b) CH3 (c) (d) CN Но HO=O -H но- -OH -H H -OH OH ОН Н- -Cl OH Н- но но -H - CH3 но- CH2OH H но- CO2H CH,он CH2CI WOT I
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?
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
3.26 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)
Culhydrates 1. Complete th Complete the table by classifying each sugar sugar (A, B, C, D) below based on carbonyl group and number of carbons (c.8. aldohexose, ketotriose, etc.). Classify them as an antiomer. Indicate the number of chiral carbons for each sugar. Sugar Classification based on carbonyl group and number of carbons Lor D enantiomer Number of chiral carbons н-с-он HO-6-H. н-с-он ін,он CH,OH C=0 HO-C-H н-с-он HO-C-H. ён,он снон c=0 | HO-C-H ін,он H-C-OH CH, OH CD 2....