Concept explainers
(a)
Interpretation:
A sugar that is
Concept Introduction:
Epimer: Epimer is one of a pair of stereoisomers. Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
b)
Interpretation:
A sugar that is
Concept Introduction:
Epimer: Epimer is one of a pair of stereoisomers. Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
c)
Interpretation:
A sugar that is
Concept Introduction:
Epimer: Epimer is one of a pair of stereoisomers. Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
d)
Interpretation:
A sugar that is
Concept Introduction:
Epimer: Epimer is one of a pair of stereoisomers. Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
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Essential Organic Chemistry, Global Edition
- Draw the Haworth projection of the monossacharides above. Show each alpha and beta anomers.arrow_forwardD-Arabinose can exist in both pyranose and furanose forms. a. Draw the α and β anomers of D-arabinofuranose. b. Draw the α and β anomers of D-arabinopyranose.arrow_forwardDraw the products formed when B-D-galactose is treated with each reagent. a. Ag,0 + CH3I b. NaH + CgHsCH2CI c. The product in (b), then H30* d. Ac20 + pyridine e. CeHsCOCI + pyridine f. The product in (c), then CgHsCOCI + pyridinearrow_forward
- m) Which pyranose ring (A, B, C, or D) in the tetrasaccharide below is derived from D-altrose? The Fischer projections for the four aldohexoses that make up this tetrasaccharide are shown below. B C D HOH CHO CHO CHO CHO HO+H HTOH Fонно н HOH HOH H-OH H-OH H-+-OH H-TOHHOH HOH H+OH HOHнтон нон CHOH CHOH CHOH CHOH De D-glue Dalose Datrone i NH Į HOH STEP 1 OH, HO- answer 1. Just add arrows and charges for steps 1, 2, and 3 in formation of this enamine з no arrows needed here OH н Н ЮН -OH STEP 3 :ÖH н H STEP 2 на это про за почarrow_forwardConvert each aldohexose to the indicated anomer using a Haworth projection.arrow_forwardDraw the product formed when each monosaccharide is oxidized with Benedict’s reagent.arrow_forward
- Label the anomeric carbon for D- ribosearrow_forwardIs the ring a pyranose or a furanose ring for D-Ribosearrow_forwarda. How many stereogenic centers are present in α-D-galactose? b. Label the hemiacetal carbon in α-D-galactose. c. Draw the structure of β-D-galactose. d. Draw the structure of the polyhydroxy aldehyde that cyclizes to α- and β-D-galactose.arrow_forward
- Donarrow_forwardFor D-lyxose i. Draw an epimer at C3. ii. Draw a diastereomer that is not an epimer. iii. Draw the anomers of -D-lyxofuranose and -D-lyxopyranose. iv. Draw the product as Haworth projection when reacted with methanol catalysed by acid.arrow_forwardОН 2. the Fischer projection that corresponds to the monosaccharide shown in the box. О н HO OH но- OH НО 0 OH OH OH H-OH -ОН 3. the Haworth projection that corresponds to the structure shown in the box. OCH, НО OH athul algasida О Н H-OH H-OH но-н но- HO -O OCH, OH O H H-OH НО-Н H-OH H-OH OH ОН НО НО OOCH, HO H-OH но-н но-н OH H-OH OH НО OH OCH, OH OH О н H-OH H-OH H НО но-н ОН НО -oOCH, ОН он онarrow_forward
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