Draw the open-chain and cyclic structure of D-fructose
Draw the open-chain and cyclic structure of D-fructose
Homework Answers
Answer – We know the D-fructose is an isomer of glucose, since both have the same molecular formula. The cyclic and open D-fructose have difference in the connectivity. In the open D-fructose when the O atom is attached with second carbon and formed ring. The following are the cyclic and open D-fructose-
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form...
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form of this monosaccharide using this link https://cactus.nci.nih.gov/translate/ To draw the structure: 1. Click "start structure editor". 2. Draw the structure you suggest for the answer. You can draw it in a "Fischer projection" like fashion - making horizontal lines with the "wedged" bonds to emphasize chirality. (see the example below) 3. Click "submit molecule". 4. the program will generate a "SMILES" formula which is...
1. For D-glucose and D-fructose provide the following information: a) Molecular formula b) Fischer projection of...
1. For D-glucose and D-fructose provide the following information: a) Molecular formula b) Fischer projection of the open chain and specified cyclic structure c)Type of carbohydrate (Prefix: aldo or keto + number of carbons + "ose"; e.g. aldohexose) D-glucose Molecular formula: Type of carbohydrate: Fischer projection a- cyclic structure D-fructose Molecular formula: Type of carbohydrate: Fischer projection B-cyclic structure O
Draw the cyclic Haworth projection of the beta-furanose form of D-fructose.
Draw the cyclic Haworth projection of the beta-furanose form of D-fructose. Show the mecahnism behind it.14 (2).pdf
Answer for 1a and 1b 1. Below are the cyclic and open-chain structures for glucose and...
Answer for 1a and 1b
1. Below are the cyclic and open-chain structures for glucose and fructose. (6 points total) а) Label each structure as glucose or fructose. (1 pt each, 4 pts) b) Glucose is a(n) and fructose is a(n). (ketose, aldose) (1 pt each, 2 pts) CH,OH -он HOCH ОН HOH н но/сн,он он OH H o=4 нон Но+н н+он н+он CH2OH CH2OH с=0 но-н нон н+он Сн,он
Sugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw...
Sugar stereochemistry. The linear chain form of
mannose is shown below (on the left side). Draw the Hayworth
structure of the cyclic anomer of fructose (named on the right
side).
3. S ugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw the Hayw structure of the cyclic anomer of fructose (named on the right side). ?? ?? CH2OH D-Mannose ?-D-Mann°furanose Surar nolymers. Two common disaccharides are found in cane (table) sugar and dairy...
CH2OH он он In the box below, draw the open-chain structure (as a Fischer projection corresponding...
CH2OH он он In the box below, draw the open-chain structure (as a Fischer projection corresponding to this Haworth projection of the cyclic hemiacetal. You may draw your Fischer projection without using wedged or hashed bonds. Align the Fischer projection vertically, e.g. . Show explicitly the bonds to any hydrogens attached to chiral carbons. Do not show bonds to other hydrogens. .A start structure for you modify is provided in the sketcher.
1. Ethers can be classified as open chain or cyclic. Open chain ethers can contain rings....
1. Ethers can be classified as open chain or cyclic. Open chain ethers can contain rings. What is the structural difference between open chain and cyclic ethers? 2. To prepare an ether from an alkyl halide by a nucleophilic substitution reaction, what are the two types of nucleophiles that can be used? 3. Give one method for preparing an epoxide.
The following molecule is more stable as its cyclic acetal or hemiacetal. Deduce the cyclic structure...
The following molecule is more stable as its cyclic acetal or hemiacetal. Deduce the cyclic structure of the following open-chain compound.
1. Draw the structure of D-fructose, and glucose to which it is converted in basic media.
1. Draw the structure of D-fructose, and glucose to which it is converted in basic media.
Draw an electron pushing mechanism that demonstrates the isomerization from the cyclic isomer of glucose to...
Draw an electron pushing mechanism that demonstrates the
isomerization from the cyclic isomer of glucose to the open-chain
isomer.
Saccharides, such as glucose, exist in biological systems in as
open-chain and cyclic
isomers. The cyclic isomer results from the nucleophilic addition
reaction between the aldehyde
and a hydroxyl group.
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form of this monosaccharide using this link https://cactus.nci.nih.gov/translate/ To draw the structure: 1. Click "start structure editor". 2. Draw the structure you suggest for the answer. You can draw it in a "Fischer projection" like fashion - making horizontal lines with the "wedged" bonds to emphasize chirality. (see the example below) 3. Click "submit molecule". 4. the program will generate a "SMILES" formula which is...
1. For D-glucose and D-fructose provide the following information: a) Molecular formula b) Fischer projection of the open chain and specified cyclic structure c)Type of carbohydrate (Prefix: aldo or keto + number of carbons + "ose"; e.g. aldohexose) D-glucose Molecular formula: Type of carbohydrate: Fischer projection a- cyclic structure D-fructose Molecular formula: Type of carbohydrate: Fischer projection B-cyclic structure O
Answer for 1a and 1b
1. Below are the cyclic and open-chain structures for glucose and fructose. (6 points total) а) Label each structure as glucose or fructose. (1 pt each, 4 pts) b) Glucose is a(n) and fructose is a(n). (ketose, aldose) (1 pt each, 2 pts) CH,OH -он HOCH ОН HOH н но/сн,он он OH H o=4 нон Но+н н+он н+он CH2OH CH2OH с=0 но-н нон н+он Сн,он
Sugar stereochemistry. The linear chain form of
mannose is shown below (on the left side). Draw the Hayworth
structure of the cyclic anomer of fructose (named on the right
side).
3. S ugar stereochemistry. The linear chain form of mannose is shown below (on the left side). Draw the Hayw structure of the cyclic anomer of fructose (named on the right side). ?? ?? CH2OH D-Mannose ?-D-Mann°furanose Surar nolymers. Two common disaccharides are found in cane (table) sugar and dairy...
CH2OH он он In the box below, draw the open-chain structure (as a Fischer projection corresponding to this Haworth projection of the cyclic hemiacetal. You may draw your Fischer projection without using wedged or hashed bonds. Align the Fischer projection vertically, e.g. . Show explicitly the bonds to any hydrogens attached to chiral carbons. Do not show bonds to other hydrogens. .A start structure for you modify is provided in the sketcher.
1. Ethers can be classified as open chain or cyclic. Open chain ethers can contain rings. What is the structural difference between open chain and cyclic ethers? 2. To prepare an ether from an alkyl halide by a nucleophilic substitution reaction, what are the two types of nucleophiles that can be used? 3. Give one method for preparing an epoxide.
The following molecule is more stable as its cyclic acetal or hemiacetal. Deduce the cyclic structure of the following open-chain compound.
Draw an electron pushing mechanism that demonstrates the
isomerization from the cyclic isomer of glucose to the open-chain
isomer.
Saccharides, such as glucose, exist in biological systems in as
open-chain and cyclic
isomers. The cyclic isomer results from the nucleophilic addition
reaction between the aldehyde
and a hydroxyl group.
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