alpha-zaown oro HR nog beta-2 up 12 42 D 1. The following Fischer projection for sure...
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50. When the following Fischer projection closes, which is the alpha Haworth form? CH2OH EO A 7 Но он se a cozycy A) a CH2OH a on B) HONE LOH HO CH₂ OH HO C2 C3°" cho CH2OH Lornoon E) Two of these are correct 51. What is the correct relationship between the 2 compounds? CH₂OH сом C=O 40 - OH HOH CH₂OH A) diastereomers B) epimers C) enantionmers and H0+...
ÇI-lagl- (2 pts) Use the Fischer projection shown below for the sugar D-altrose to draw a Haworth projection of the beta- 2. pyranose form of this sugar. но -Н H- OH H- OH OH H- CH-ОН 1
identify the monossacharides in the compound, the orientation at
the anomeric center(s) (alpha or beta), and the linkage sites
between the sugars. Also indicate if it is a reducing sugar or not.
CHEM 120 Essentials of Organic Chemistry Fall 20 OH OH но — он, OH OH made-up example HOH O Кон мон HOH made-up example HOQ O O HO made-up example 9. For the following monosaccharides, give the corresponding Fischer projection. how Oy ho CH OH HOY -OOH OH...
12. Which Fischer projection corresponds with the following molecule? CHO CHO H- OH CHO Ho- Br HD--- H -- Et CH.CH CH₂ CH2 Brott CH₂ CH₃ al diIV e.v c III
2. Convert each of the following structures to a Fischer projection. (2 points) OH NH, 6 3. Draw all the significant resonance structures for each of the following molecules. (2 points) 4. Write a mechanism that is the reverse of the following reaction: (2 points) OOH + H307
22. Convert the following Fisher projection into a Haworth
projection. Draw only the alpha anomer (12 points)
21. Are the following pairs of carbohydrates the same, completely different, constitutional isomers or stereoisomers? (12 points at 3 points each) CHO CHO CHO сњон он OH он он CH2OH он он он он он но он но но он он CH2OH CH2OH он CHO CHO CHO сњон он он он он он но он но но Ho но он но он OH...
Question 12 Which Fischer projection corresponds with the following molecule? Br OH CHO CHO CHO CHO CHO H ОН HO -H HO- Br HO -H -H H- -Br HE -Br Br -H Br -H CH2CH, CH,CH, CH2CH3 CH2CH3 снясно II III IV y ΟΙ O II O III O IV V
OH Draw a Fischer projection for the following compound, placing the -CO2H up at the top. Rotation between Cry and C, might be needed но a. Assign R/S configuration to the chiral centers, b. Draw its enantiomer, and C. Draw a diastereomer. (2) OH HOC
1. For D-glucose and D-fructose provide the following information: a) Molecular formula b) Fischer projection of the open chain and specified cyclic structure c)Type of carbohydrate (Prefix: aldo or keto + number of carbons + "ose"; e.g. aldohexose) D-glucose Molecular formula: Type of carbohydrate: Fischer projection a- cyclic structure D-fructose Molecular formula: Type of carbohydrate: Fischer projection B-cyclic structure O
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent a monosaccharide, a disaccharide, a trisaccharide or something else? B Are any chiral carbons present? If so, circle each one. C Does this represent an aldose or a ketose? Explain your response and draw a box around the relevant functional group. D Give the molecular formula for this compound. E Is this compound classified as an L-isomer or a D- isomer? your response. Explain...