4) In the Fischer projection below, label each stereocenter with an *, and indicate the configurations...
1) For each structure below, assign configurations at each stereocenter and indicate the relationship between each pair. CI VOH and HI | HOCH3 Но, сн. and ÇO2H CH H- CO2H CH2OH and and HT -CO2H HOC- H CH2OH
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
Indicate whether each of the following molecules R, S, Z or E. Label the substituents according to priority. The third molecule is a Fischer projection. Cl H2C SH H CH3 CH3 Label each pair of molecules as enantiomers, diasteromers, identical molecules constitutional isomers, or not isomers at all. No partial credit. H3C SH CH3 CH(CH3)2 H3C CH2CH2F CH(CH3)2 H3C CH2CH3 and H CH3 and H SH Cl HOH OH and CH3
15 uestion 25 Assign the Ror S configuration to each stereogenic center in the Fischer projection below. CHO HTH a+H H- OH CH3 O R, S, R R, R, R OOOOO S, S, S SRS S, S, R
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
A Fischer projection of a monosaccharide is shown below:
A Fischer projection of a monosaccharide is shown below: CHO H- -ОН HO -H HO -H I -OH CH2OH v to form ring. When this monosaccharide cyclizes, carbon v bonds to the oxygen on carbon Note that the numbering of the carbons begins at the top of the Fischer projection. furanose pyranose A Fischer projection of a monosaccharide is shown below: CH2OH C=0 H OH НО. -H CH OH v to...
A Fischer projection of a monosaccharide is shown
below:
A Fischer projection of a monosaccharide is shown below: CHO H + -OH CH2OH Classify this monosaccharide (e.g., aldotriose) Does it have the D or L configuration? A Fischer projection of a monosaccharide is shown below: CH2OH Ç=0 H- -OH HO -H CH OH Classify this monosaccharide (e.g., aldotriose) Does it have the D or L configuration?
Identify each amino shown below in Fischer projection. Indicate whether the D or L-enantiomer is shown. - Part A HSHC- COOⓇ Spell out the full name of the amino acid. Submit Request Answer - Part B 4,-¢-COOB CH(CH3)OH Spell out the full name of the amino acid. Submit Request Answer - Part 20oc ——(CH,)CONH ONH Spell out the full name of the amino acid. Submit Request Answer
Draw the Fischer projection for the monosaccharide drawn as a
haworth projection below.
Draw the Fischer projection for the monosaccharide drawn as a Haworth projection below. Switch between an aldose and a ketose by clicking on "switch carbonyl group." Add or delete carbon atoms using the add ("+") or delete ("x") buttons. Clicking on a blue box once adds a hydrogen atom (H). Clicking on a blue box again toggles between H and OH.
R / S stereocenters
8. Try R 1 S stereocenter! Label each group on the stereocenter as 1, 2, 3, or 4. First look at the 4 atoms directly bonded to the stereocenter (chiral carbon). For tiebreakers, use the 3 bonds (other than bond to stereocenter) that are on each of the "tied" carbons. 4 atomsTiebreaker Rank (3 other bonds) Br Once you have rankings, Make sure #4 is pointed away, then see which direction the 1 to 2 to...