D-2-KETOHEPTASE
What is the Fisher projection of D-2-ketoheptase?
Homework Answers
The configuration of carbohydrates can be represented using the Fischer projection. In D-2-ketoheptose, the number of carbon atoms in the carbon chain is seven. Heptose is a saccharide that contains seven carbon atoms. In this molecule, a ketone group is on the carbon (2) position of the chain, and D represents that the –OH group is on the right side of the penultimate carbon atom.
The structure of D-2-ketoheptose is represented as
dear student , you can refer to the answer https://wizedu.com/questions/578/draw-the-fischer-projection-for-the-d-2
1) Monosaccharide Structures r str s, show the carbon atom numbers. A. Fisher projection of D-glucose...
1) Monosaccharide Structures r str s, show the carbon atom numbers. A. Fisher projection of D-glucose B. Haworth projection of β-D glucose C. chair representation of β-D glucose in its most favorable conformation | D. Fisher projection of D-Fructose E. Fisher projection of C3 epimer of D F. Haworth Projection of C3 epimer of D- glucose glucose
the Fisher projection for D-ketotetrose
the Fisher projection for D-ketotetrose
I. (12 pts) Give name: a. он b. d. Il. (4 pts) Write the following in...
I. (12 pts) Give name: a. он b. d. Il. (4 pts) Write the following in a Fisher projection. HS он NH2 III. (15 pts) Write structure of D-fructose in Fisher projection. Then write Haworth structure of a-D-fructose. Is a-D-glucose a reducing sugar?
(2 pts) Draw the following compounds: 1. a-, and B anomers of D-galactose (show your work...
(2 pts) Draw the following compounds: 1. a-, and B anomers of D-galactose (show your work from Fisher projection to Haworth structures) a) b) aldonic acid, uronic acid and aldaric acid derivatives of galactose c) galactitol 6-lactone of galactonic acid d)
below is a stereoisomer of lysine. using the fisher convention (D and L) and the R...
below is a stereoisomer of lysine. using the fisher convention
(D and L) and the R and S system, define the chirality of
stereoisomer.
the answer is D and R
please thoroughly explain how to convert molecule to fisher
projection and how to determine it is D
V NH2 OH H2N
Using a Fisher projection, draw all of the possible D-stereoisomers of glucose. List all of the...
Using a Fisher projection, draw all of the possible D-stereoisomers of glucose. List all of the enantiomers, diastereomers, and epimers for glucose and galactose.
The Fischer projection for (+)-2-bromooctane is shown below. Write the correct atom or substituent (written in...
The Fischer projection for (+)-2-bromooctane is shown below. Write the correct atom or substituent (written in a condensed formula) in the appropriate boxes below for the Fisher projection of the (- -2-octanol formed from it by nucleophilic substitution with inversion of configuration. CH3 Н- Br D CH2(CH2)4CH3 A= В 3 C = D =
Bromination of E-stilbene Bromination of E-stilbene: Mechanism and stereochemistry analysis c) Newman projection of A d)...
Bromination of E-stilbene
Bromination of E-stilbene: Mechanism and stereochemistry analysis c) Newman projection of A d) Another Newman projection of A Fisher projection Ph Ph e) R/S assignment of C1 (show all work: including the order of priority for four groups and the rotation) R/S assignment of C2 (show all work)
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2)...
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection
1. (2 points each) Draw the chemical structures of the following two compounds. iodoform 71-butanal 2....
1. (2 points each) Draw the chemical structures of the following two compounds. iodoform 71-butanal 2. (2 points) Circle the compound that will give a positive result in the iodoform test. (a) acetophenone b) cyclopentanone c) isobutanol d) n-heptanal 3. (3 points) Convert the following molecule to a Fisher projection. OH | H Convert to a Fisher Projection H DH 1 OHHH HAH HEBH 4. (2 points) Circle the correct name of the following structure. ph a) (meso)-hydrobenzoin H -OH...
1) Monosaccharide Structures r str s, show the carbon atom numbers. A. Fisher projection of D-glucose B. Haworth projection of β-D glucose C. chair representation of β-D glucose in its most favorable conformation | D. Fisher projection of D-Fructose E. Fisher projection of C3 epimer of D F. Haworth Projection of C3 epimer of D- glucose glucose
I. (12 pts) Give name: a. он b. d. Il. (4 pts) Write the following in a Fisher projection. HS он NH2 III. (15 pts) Write structure of D-fructose in Fisher projection. Then write Haworth structure of a-D-fructose. Is a-D-glucose a reducing sugar?
(2 pts) Draw the following compounds: 1. a-, and B anomers of D-galactose (show your work from Fisher projection to Haworth structures) a) b) aldonic acid, uronic acid and aldaric acid derivatives of galactose c) galactitol 6-lactone of galactonic acid d)
below is a stereoisomer of lysine. using the fisher convention
(D and L) and the R and S system, define the chirality of
stereoisomer.
the answer is D and R
please thoroughly explain how to convert molecule to fisher
projection and how to determine it is D
V NH2 OH H2N
The Fischer projection for (+)-2-bromooctane is shown below. Write the correct atom or substituent (written in a condensed formula) in the appropriate boxes below for the Fisher projection of the (- -2-octanol formed from it by nucleophilic substitution with inversion of configuration. CH3 Н- Br D CH2(CH2)4CH3 A= В 3 C = D =
Bromination of E-stilbene
Bromination of E-stilbene: Mechanism and stereochemistry analysis c) Newman projection of A d) Another Newman projection of A Fisher projection Ph Ph e) R/S assignment of C1 (show all work: including the order of priority for four groups and the rotation) R/S assignment of C2 (show all work)
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection
1. (2 points each) Draw the chemical structures of the following two compounds. iodoform 71-butanal 2. (2 points) Circle the compound that will give a positive result in the iodoform test. (a) acetophenone b) cyclopentanone c) isobutanol d) n-heptanal 3. (3 points) Convert the following molecule to a Fisher projection. OH | H Convert to a Fisher Projection H DH 1 OHHH HAH HEBH 4. (2 points) Circle the correct name of the following structure. ph a) (meso)-hydrobenzoin H -OH...
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