5.50 For each molecule in Problem 5.49, identify all chiral centers that exist. Which of those molecule 5.51 Draw e...
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
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
11.a) Draw the open chain (Fischer) structure of D-altrose. (1pt) (b) How many chiral centers are in D-altrose? ______ (1pt) (c) What is the maximum number of possible stereoisomers whch can exist for D-altrose? _____ (1pt) (d) Draw L-altrose in open chain form (use Fischer projection) – you may use the space above. (1pt) (e) Use the information above to draw a Haworth projection for alpha-D-altropyranose. (2pt) Ruff degradation on a monosaccharide causes C1 to be lost as carbon dioxide,...
(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
5. Consider the molecules shown below. (4 points) Identify all chiral centers in each molecule. Determine whether each molecule is chiral or achiral. If the achiral molecules are meso, classify them as such. ОН ОН он Cl Alacan.
5. Consider the molecules shown below. (4 points) Identify all chiral centers in each molecule. • Determine whether each molecule is chiral or achiral. . If the achiral molecules are meso, classify them as such. OH ОН ОН
5. Consider the molecules shown below. (4 points) Identify all chiral centers in each molecule. • Determine whether each molecule is chiral or achiral. • If the achiral molecules are meso, classify them as such. он OH 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. Identify the relationship between the pairs of molecules shown below as either: the same molecule, diastereomers, enantiomers, or epimers. (3 points each) CH2OH СНОн он но -н H-OH он OH он OH OH OH H2OH CH2OH 4. Draw the Line Angle formula for the products of the following reactions. (4 points each) Cu+2 -Cu2O(s) + + но -н CH2OH Ht, heat OH HO heat
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral carbons. What is the maximum number of stereoisomers that a molecule with three chiral carbons can have? b) (18 points) Even though molecule A has three chiral carbon atoms, there are only four stereoisomers: A, B, C, and D. Explain why so few stereoisomers exist, using structures as part our answer. Your answer should take your answer to a) into account. CH,OH CH2OH CH...