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Make a model of a-fructose in the ring form. (Require 5 C-C, 7 C-H, 6 C-O...
Question 1: Compare the possible ring structures and conformers for fructose and decide which is preferred...
Question 1: Compare the possible ring
structures and conformers for fructose and decide which is
preferred (if any). There are four main hemi-ketal rings, one of
which is shown below. What factors might influence the preference
for 5- or 6-membered rings?
Question 2: Make a model of vitamin C. Note the
lactone link that forms the ring, rather than the hemi-ketal that
is present in fructose. Do you think the presence of sp2
carbons in the ring induce strain? Does...
5 a) identify the anomeric carbon in the below molecule b) identify the thpe of ring...
5 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
6 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
7 The structure of 6-carbon ketose sugar is shown. Draw the
common cyclic structure of this structure (both a and b form)
8 Identify the relationship...
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or...
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or groups of amino acids does the molecule below belong? Choose the one best answer. Make sure you consider all choices. a. Hydrophilic acidic b. Hydrophilic neutral c. Hydrophilic basic d. Hydrophobic neutral e. a and b tbandc & cand d h. danda Hin-çu-&-0 CH₂ oo- 7) Indicate with arrows the two atoms that would be involved in peptide bonds if the amino acid were...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the sense that the three and four-membred rings do? The molecule is not completely strin-free because there is some eclipsing. Identify the eclipsed atoms or groups when the molecule is planar. In fact the molecule is not planar, but is puckered in either of two ways; (i) One C-atom is abover or below the plane defined by the other four coplanar C-atoms defining an envelope...
draw your cyclic model by adding the OH groups and H atoms to figure below. le...
draw your cyclic model by adding the OH groups and H atoms to
figure below.
le the drawing a Unded black atom white atoms. Cl, use green For Br, use pe For all Lone chiral Cater b. Convert the open form of ribose into a eyelie form. Here's how: 1. Pull apart one of the Co bonds from the Catom, leaving the other end of the bond attached to the O atom. . Connect the free bond from the O...
Pyridine, C5H5N, is a 6-membered ring containing the C atoms and the N atom. Aniline, [C6H5(NH2)]...
Pyridine, C5H5N, is a 6-membered ring containing the C atoms and the N atom. Aniline, [C6H5(NH2)] , is a hexagonal ring of 6 C atoms with a NH2 group attached to one of the C atoms in the ring (1) For each of the above molecules, draw (the) equivalent resonance structure(s) AND resonance structures that involve (introduce) a +1 and a -1 formal charge. (2) These molecules are Bronsted-Lowry bases – molecules containing at least one atom with a nonbonding...
< Question 6 of 8 > Attempt 3 - Vanillin, C,H,O,, is the active ingredient in...
< Question 6 of 8 > Attempt 3 - Vanillin, C,H,O,, is the active ingredient in vanilla flavoring. It contains a six-membered aromatic ring with an aldehyde group on carbon 1, an alkoxy group (ether) on carbon 3, and a hydroxyl group (alcohol) on carbon 4. Draw the structure of vanillin. Select Draw Rings Rings More Erase
Give the name for this molecule: CH3 o 11 CHCH2-C-O-H CH3 Draw the structure of the...
Give the name for this molecule: CH3 o 11 CHCH2-C-O-H CH3 Draw the structure of the major organic product of the reaction. NH2 . You do not have to consider stereochemistry. All carboxyl and amino groups should be drawn in the neutral form. • Draw one structure per sketcher. Add additional sketchers using the drop-down me Separate multiple products using the + sign from the drop-down menu. in the bottom right corner. .
Questions 7-15 The molecule is ethane 71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7....
Questions 7-15 The molecule is ethane
71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7. Orient the two molecules so that portions of the mo lecules that would normally form intermolecular bonds lie next to each other. In this activity, you will build molecular models of biologically important molecules using ball-and-spring molecular model 1) What intermolecular forces help to hold these mo- building kits and then you will view these and other molecules lecules together! of interest using computer-generated...
CHO 1. NH2OH 2. Ac2o 3. CH,O CHO OH H- HO H HO H HCN H...
CHO 1. NH2OH 2. Ac2o 3. CH,O CHO OH H- HO H HO H HCN H OH OH H- OH H- -OH H- CH2OH CH2OH The Wohl degradation is a series of reactions that shorten an aldose chain by one carbon, it is almost the exact opposite of the Kiliani In this reaction the aldose aldehyde carbonyl group is converted into a nitrile. The resulting cyanohydrin loses HCN under basic cone Conversion of the aldehyde to a nitrile is accomplished...
Question 1: Compare the possible ring
structures and conformers for fructose and decide which is
preferred (if any). There are four main hemi-ketal rings, one of
which is shown below. What factors might influence the preference
for 5- or 6-membered rings?
Question 2: Make a model of vitamin C. Note the
lactone link that forms the ring, rather than the hemi-ketal that
is present in fructose. Do you think the presence of sp2
carbons in the ring induce strain? Does...
5 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
6 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
7 The structure of 6-carbon ketose sugar is shown. Draw the
common cyclic structure of this structure (both a and b form)
8 Identify the relationship...
5) Draw a ribose sugar and glucose sugar ring structure form. 6) To which group or groups of amino acids does the molecule below belong? Choose the one best answer. Make sure you consider all choices. a. Hydrophilic acidic b. Hydrophilic neutral c. Hydrophilic basic d. Hydrophobic neutral e. a and b tbandc & cand d h. danda Hin-çu-&-0 CH₂ oo- 7) Indicate with arrows the two atoms that would be involved in peptide bonds if the amino acid were...
Make3 a model of cyclopentane. Does this molecule seem to have any ring strain in the sense that the three and four-membred rings do? The molecule is not completely strin-free because there is some eclipsing. Identify the eclipsed atoms or groups when the molecule is planar. In fact the molecule is not planar, but is puckered in either of two ways; (i) One C-atom is abover or below the plane defined by the other four coplanar C-atoms defining an envelope...
draw your cyclic model by adding the OH groups and H atoms to
figure below.
le the drawing a Unded black atom white atoms. Cl, use green For Br, use pe For all Lone chiral Cater b. Convert the open form of ribose into a eyelie form. Here's how: 1. Pull apart one of the Co bonds from the Catom, leaving the other end of the bond attached to the O atom. . Connect the free bond from the O...
< Question 6 of 8 > Attempt 3 - Vanillin, C,H,O,, is the active ingredient in vanilla flavoring. It contains a six-membered aromatic ring with an aldehyde group on carbon 1, an alkoxy group (ether) on carbon 3, and a hydroxyl group (alcohol) on carbon 4. Draw the structure of vanillin. Select Draw Rings Rings More Erase
Give the name for this molecule: CH3 o 11 CHCH2-C-O-H CH3 Draw the structure of the major organic product of the reaction. NH2 . You do not have to consider stereochemistry. All carboxyl and amino groups should be drawn in the neutral form. • Draw one structure per sketcher. Add additional sketchers using the drop-down me Separate multiple products using the + sign from the drop-down menu. in the bottom right corner. .
Questions 7-15 The molecule is ethane
71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7. Orient the two molecules so that portions of the mo lecules that would normally form intermolecular bonds lie next to each other. In this activity, you will build molecular models of biologically important molecules using ball-and-spring molecular model 1) What intermolecular forces help to hold these mo- building kits and then you will view these and other molecules lecules together! of interest using computer-generated...
CHO 1. NH2OH 2. Ac2o 3. CH,O CHO OH H- HO H HO H HCN H OH OH H- OH H- -OH H- CH2OH CH2OH The Wohl degradation is a series of reactions that shorten an aldose chain by one carbon, it is almost the exact opposite of the Kiliani In this reaction the aldose aldehyde carbonyl group is converted into a nitrile. The resulting cyanohydrin loses HCN under basic cone Conversion of the aldehyde to a nitrile is accomplished...
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