on 6 of 17 > The structures of four isomers of a ketopentose are shown. OH Macmillan Learning OH H-C-H 0=C HOTCH HỘI CH H-C-H OH A Dc OD Ов OH H-C-H C=0 OD DA H-C-H HC OH HO CH H-C-H OH C=0 HOTCIH HOCH B HIC-H OH C Which of the structures are diastereomers of A? Which of the structures are stereoisomers of C? OH H-C-H HO-C-H 0=C HICIOH H-C -H OH D Which of the structures are enantiomers of C? OD DA

11 Br H- These two structures, shown as Fischer projections, are: CH3 H₂C (5 ptg) CH3 -H -CI Br CI- a) enantiomers d) constitutional isomers CH3 H -H b) diasteromers e) the same compound c) meso

Predict the product of each monosaccharide reaction. Modify the molecule to show the product of the reaction. Atoms or bonds may need to be added or removed. 0=0 H-C-OH Н HTC OH H-C-OH H2C-OH 0=0 Н H-C-OH H-C-OH H2C-OH oxidation reduction Reaction A K Select / S С 01 Reaction B Select Draw 1 С Draw / 4 11 C C Rings 0 Н н-с HICOH н — с — Rings More H— с - он Н — он он 0 H нс — он — H- More H-C ОН с-он OH H. C ОН Erase Q2 Q О ▸ Erase 20

5. Three of the following projection formulas are the same compound. The other is the enantiomer. Which is the enantiomer? CH;OH H -c=0 a) ÓH H H-C=0 Но H ČH¿OH b) H-Ç =0 H -CH;OH ÓH CH;OH H - OH d) H-ċ=0

How would you convert D-glucose to each compound? More than onestep is required.

Which fischer projection represents the following haworth projection? H₂C-OH CH-O HO OH C HOOH HAH C-C H OH о H₂C LOH C=0 но-с-он H-C-OH H-C-OH H₂C OH H HO HO H- HO -OH H HO HO 애애 О LOH H₂C C=0 H-C-OH HO-C-OH H-C-OH H₂C. HO HO -OH 11 IT

Which of the following is a reducing sugar? HO но OH но но HO" "OH HO" "OH Он но OH он HO A D A В C

Identify the type of glycosidic bond for each of the following sugars. Choose from a-(1-2), a- (1-3), a-(1-4), a-(1-5), a-(1-6), B-(1-2), ß-(1-3), ß-(1-4), ẞ-(1-5), ß-(1-6), or a,ẞ- (1+2) CH₂OH 0 HO H H OH H H H OH O a-(1-6) glycosidic bond OB-(1-5) glycosidic bond OB-(1-6) glycosidic bond Oa-(1-5) glycosidic bond CH₂ HO H H OH H H 0 H HP OH

When the following carbohydrate cyclizes, which of the following Haworth Projections is formed? CHO но - H- OH HO - HO -H- CH2OH CH2OH OH HO 1

Identify the correct Fischer, Haworth, and chair structure of the β-anomer of this compound