Identify the Haworth structure showing the ẞ-isomer of the following Fischer projection.H(Hint: Draw it using the 3-step method provided in your textbook to figure out.)ΟCH.OHHO OHHOHOHHOHHHCH.OHHO OHHOHHHOHHOHCH,OHHHOHHHOOHHOHCH.OHHHOHOHHOOH0HO HHO1HOHHOHCH₂OH

Beta form -OH group is above the plane, here there are two form in which OH is above the palne . A…

Answered: Identify the Haworth structure showing…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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What is the type of glycosidic bond here?
10. Circle the reducing end of each of the disaccharides below. CH2OH CH2OH он о OH OH О ОН -О, ОН ОН OH O- -І OH -Т CH₂OH Н Н ОН I О Т- " CH2OH Н H -IO- OH ОН Н Н T OH
2. The following diagram shows the straight-chain structure of an N-acetyl aminoheptose that is found in certain plants including avocado (Persea Americana). CHOH CH2OH CH,OH O: O: HO- но -HO- HO H но -HO- H- NHAC NHAC ACHN OH HN H- HO- HO CH2OH CHOH CH20H HO HO. Structure B Structure C Structure A OH OH CHOH CH2OH CH OH HO H HO H HO- H OH HO- HO H- -NHAC ACHN- ACHN HO- H OH HO ČHOH CH2OH CH2OH Structure D Structure E Structure F Which of the Fischer projections (A-F) matches the skeletal formula shown? Structure A Structure B Structure C Structure D Structure E O Structure F (1 mark) 王 HI
Which is a correct Haworth projection of the sugar shown. CHO H CH2OH CH2OH OH OH -HO- H. OH ČH2OH H H HO -- OH OH H. OH н он OH H Но ČH2OH H. OH OH H. OH H H OH OH ČH2OH OH ČH2OH H. OH ОН Н H. OH H. OH
Check the box under each ketose. If there are none, check the None of the above box under the table. H Н I НО н ОН ОН н ОН CH2OH НО H None of the above. CH₂OH Н -ОН CH₂OH H Но H Н ОН ОН ОН CH2OH Н. НО I НО Н -Н I ОН Т ОН CH2OH НО H Н CH₂OH C=0 н -ОН ОН CH₂OH
HW11 #24
2. Provide a general name for the sugars and say whether they are D or L sugars. Draw the mirror image of each isomer. Fischer projection CH₂OH C=O HO -H H- OH H- -ОН CH₂OH Classification: Other isomer Fischer projection CHO HOH H- -OH H-OH HOH CH₂OH Classification: Classification: Other isomer Classification:
Classify each of the following sugars. (For example, glucose is an aldohexose.) CH2OH CH2OH C=0 Но H- HO- C=0 H- H- CH2OH HỌ H- но -H Но ČH;OH ČH2OH CH2OH
N-NHPH CHO CH2OH H- C=N-NHPH Но- -H- 3 equiv Но- -H- 3 equiv Но- PHNHNH2 PHNHNH, H- H- OH H- -O- H- H- -HO- H- -HO- ČH2OH ČH2OH ČH2OH D-glucose osazone D-fructose + NH3 + PHNH2 + 2 H20 The final step in the formation of the osazone from glucose is the reaction of the keto imine with 2 equivalents of phenylhydrazine to yield the osazone plus ammonia. This reaction involves the following intermediate steps: 1. Addition of phenylhydrazine to the imine and proton transfer to yield intermediate 1; 2. Elimination of ammonia to yield phenylhydrazone 2; 3. Addition of phenylhydrazine to the ketone to yield tetrahedral intermediate 3; 4. Proton transfer yields carbinolamine 4; 5. Elimination of water yields the final product osazone. Write out the mechanism on a separate sh of paper and then draw the structure of tetrahedral intermediate 3. NH НО- -H H- -ОН H- -ОН ОН Glucose keto imine Previous Ne
Translate the wedge-and-hashed structure to its Fischer projection. OH OH H. OH Select the Fischer projection that matches the structure. CHO CHO Но- H- -HO- H- HO- HO но H- HO ČH2OH CH,OH CH,OH CHO CHO но- H- HO. HO Но HO- CH2OH CH2OH
Shown below is a sugar in chair form. Which Fischer projection gives this same sugar?
1. Please refer to the monosaccharides below when answering questions (a)- (1). CHO CHO CHO CHO CHO HO но- H- HO H- OH H- HO H- H- OH HO- -H- OH HO- H- OH HO- H- OH HO но- H- OH HO- H HO- H HO- H- OH CH2OH ČH2OH ČH2OH CH2OH ČH2OH II III IV V (a) Draw the monosaccharide that results when III is treated with Brz/H2O. (b) Draw the monosaccharide that results when III is treated with 1. NaBH4/ 2. H2O. (c) Draw the monosaccharide that results when II is treated with the following reagents: 1. Br/H20 2. Ca(ОН)2 3. H2O2/Fe3*

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