An unknown carbohydrate solution tested (+) with Molisch’s reagent and formed a red ppt. with Barfoed’s reagent within 3 minutes and turned blue-green when mixed with Bial’s orcinol reagent. What is this carbohydrate? Draw its Haworth structure.

An unknown carbohydrate solution tested (+) with Molisch’s reagent and formed a red ppt. with Barfoed’s reagent within 3 minutes and turned blue-green when mixed with Bial’s orcinol reagent. What is this carbohydrate? Draw its Haworth structure.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter8: Haloalkanes, Halogenation, And Radical Reactions

Section8.7: Radical Autoxidation

Problem AQ: Linoleic acid is shown below. What makes this fatty acid particularly susceptible to autoxidation?...

See similar textbooks

Related questions

Q: 3. The Seliwanoff Test tests for ketoses by forming hydroxymethyl furfural (shown below) when heated…

A: The hydroxy groups at position- 2,3 and 4 are involved in dehydration reaction necessary to convert…

Q: 工星全 Cuo CHO CHO CuO 1 H Ou it OM OM 4. 04 CM+ 01H CHyOH CH yOM CHO Cho CHO O4 DH 04 H. OH OH CH, 0H…

Q: С. 1. ВНз SOCI2 2. NAOH H2O2

Q: Write the Haworth and conformational formulas for anomeric sugars. Explain the relative stabilities…

A: The Haworth conformation for the anomeric sugars are needed to be provided. The relative stability…

Q: Question 3-2 Represent the pyranic Haworth projection of N-acetyl glucosamine from the B-D-glucose:…

A: Haworth structure of Glucosamine.

Q: OH PCC HO

A: PCC: Pyridinium Chlorochromate This reagent oxidises primary and secondary alcohols to aldehyde.…

Q: Can 4-methylcyclohexanoic acid be reduced by NABH4?

A: The process for the reduction of carboxylic acids is given below. The reaction does not goes…

Q: 3-Heptanol when introduced with H2SO4 will become ____________ . Select your answer. 3-Heptene…

A: 3-Heptanol when introduced with H2SO4 that has to be given. Glucose, which is an Aldose, when…

Q: CI OH IZ

A: Hydrophilic group ----> Polar and ionic Hydrophobic group ----> Non-polar

Q: Show the reactions when the following sample compounds are tested with 2,4-Dinitrophenylhydrazine…

A: A positive DNP test is signalled by the formation of a yellow,orange and red precipitate of the…

Q: 1. The label has fallen off a bottle containing a sugar with the formula C6H the unknown sugar at…

A: Glucose is a simple carbohydrate, or sugar. It is one of several kinds of sugars. It is important…

Q: In order to determine soluble sugars in date sample, the sugar should be extracted with a. 80%…

A: We have to identify the following given options which should be suitable for sugar should be…

Q: Draw Haworth structures for the two possible isomers of D-altrose (Figure 7.2) and D-psicose (Figure…

A: The Haworth structures for the two possible isomers of D-altrose are as follows:

Q: Bileşik Sudaki Benedict's Testi | İyodoform Testi Tollens' testi çözünürlük CH3-CH2-CHO = 0 CH 3 CH-…

A: Iodoform test is positive for the organic compound having -COCH3 group in its organic molecule, the…

Q: In the cream type test using methylene blue, when methylene blue is added to the cream, drops of oil…

A: 25.T type of emulsion is Oil in water in which oil seems like droplets. So correct answer is option…

Q: (4) Can the following alkyd recipe be carried to “complete" conversion without gelling?…

A: Moles f Equivalence (f * mol) pentoerythritol 1.21 mol 4 4.84 phthalic anhydride 0.50 mol 2…

Q: When some sugars dissolve in water they spontaneously undergo changes in optical rotation called…

Q: Suggest a test for sucrose other than Molisch's test. What is the significance of the steps…

A: Non reducing sugars do not gives Tollen's test.

Q: 1mL of Benedict's reagent is added to 1mL of the test solution. The mixture is then heated for 5…

A: Benedict's test is used to distinguish between reducing and non reducing sugars. The reducing sugars…

Q: Consider the structure of D-xylose. i. Draw B-D-xylopyranose in Haworth projection. Write the…

A: As per our guideline, we're supposed to answer one question if multiple questions were asked. Hence,…

Q: Which of the following combination in each pair is likely to produce more Maillard browning when…

A: Given Sucrose + glycine, pH 7.0 vs. glucose + glycine, pH 7.0 Maltose with a dextrose equivalency…

Q: Reactions of test samples with Iodoform: Cyclohexanone Acetone Benzaldehyde Glucose Fructose

Q: What is the pka of the conjugate acid of the leaving group of an anhydride? -25 -35 -5 -15

A: The general structure of anhydride is,

Q: Would you expect fructose or glucose to form a red color rapidly with Seliwanoff’s reagent? Explain…

A: Concept is based on practical carbohydrate chemistry.

Q: Which of the following combination in each pair is likely to produce more Maillard browning when…

A: Maillard reaction is basically a nucleophilic attack of the amino group of an amino acid onto any…

Q: Mannose is an aldohexose with relative stereochemistry AABB. i) Draw the Fischer projection of…

A: Fischer projection is the representation of the organic molecule in two-dimensional form whereas…

Q: NABH, Ruff degradation an achiral alditol a D-aldohexose CHO CHO CHO CHO Но -H- H- -OH Но -- H- -OH…

A: H. 3 & 4

Q: Name each monosaccharide unit in stachyose and specify whether it is a d-monosaccharide or an…

Q: Show the product of treating the following g-lactam with reagent

Q: This is a reaction scheme for epoxidation of cholesterol with MCPBA. The reaction mixture was put…

A: alumina acts as seperating agent . Burette is filled up with alumina. Then product mixture is put on…

Q: What is the product when 2-bromobutanal os reacted with acidic aqueous KCN?

A: Reaction between 2-bromobutanol with KCN in acidic medium

Q: Which structure is the correct Haworth representation of…

Q: Which one of the following structures (from Figure #7) is the Haworth projection of beta-D-…

A: Haworth representation of talose:

Q: ОН H OH H OH H OH HO/H H- OH OH CH2OH H H

Q: For 2-4. Study these Haworth projections to answer the following for each of them. он H HO OH он но…

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in molecules.

Q: 8. Draw Haworth projection structures for the a- anomer for these Fischer projections ÇHO CHO но-…

A: Haworth projections are simply the cyclic structural representation of Fischer form of the…

Q: ehling's & Benedict's reagents, used to determine the presence of reducing sugars contain NiSO4…

A: The correct options are:

Q: 1. Bromine test is a test used to determine the degree of unsaturation in fatty acids. A colorless…

A: Fatty acids are the building blocks of the fat in our bodies. Example of fatty acids are oleic acid,…

Q: Ribose, a carbohydrate with the formula shown, forms a cyclic hemiacetal, which, in principle, could…

A: The isomeric cyclic acetals A and B are shown as follows:

Q: An unknown carbohydrate solution tested (+) with Molisch’s reagent. It formed a red precipitate…

A: The carbohydrate could be RIBOSE

Q: OH ELOH, H* .CO2H Draw the structure of the product of this Fischer esterification reaction. • Use…

A: Applying concept of organic synthesis.

Q: Complete the following reactions of the compound shown by drawing the correct products with correct…

A: Reaction 1:This is a reduction in presence of H2/Pd . The double bond gets saturated here as 2 H…

Q: True or False ____________7] Salivary amylase can be use to hydrolyze 1,4 glycosidic bonds of…

A: Given : We have to tell whether statement is true or false.

Q: 4) Structure: the appropriate box. CHO H-OH HO-H HO -H Write the requested cyclized form of the…

Q: Out of the following compounds, choose the one which gives a negative result upon subjecting to…

A: Explanation

Q: Q2 From the results in Part B, which Q3 From the results in Part C, which carbohydrates give a…

A: Given identification tests for carbohydrates: 2.What are ketoses? 3.Which carbohydrates give…

Q: Iodimetry: I2/Starch B. Iodimetry: Na2S2O3/Starch C. Permanganate: KMnO4/none D. Dichromate:

A: In Iodimetry Iodine solution is directly titrated with reducing agent. In permanganometry KMnO4 is…

Q: Examine the structure of this Fischer projection of D-gulose. CHO H- OH HO- -H- H- Но OH CH2OH 5.…

A: We are given the Fischer projection of D-gulose.

Q: 1. Which of the following reagents or tests would be most useful in quickly differentiating CH3…

A: The key component of a molecule that provides a characteristic chemical reaction to the molecule is…

Q: Convert the Fischer projection to the Haworth projection of the B-pyranose form by moving the…

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Reactions (chemical equation) of test samples with Benedict's reagent: Cyclohexanone Acetone Benzaldehyde Glucose Fructose
4) Structure: the appropriate box. CHO -OH H- HO- -H HO -H Write the requested cyclized form of the given carbohydrates in B-pyranose a-furanose CH₂OH
Digitalis is a preparation made from the dried seeds and leaves of the purple foxglove, Digitalis purpurea, a plant native to southern and central Europe and cultivated in the United States. The preparation is a mixture of several active components, including digitalin. Digi- talis is used in medicine to increase the force of myocardial contraction and as a conduction depressant to decrease heart rate (the heart pumps more forcefully but less often). HC OH H,C H CH3 H. H. (a) Describe this glycosidic bond OCH, H A (b) Draw an open-chain Fischer projection of this monosaccharide CH3 H. (e) Describe this glycosidic bond OCH, HA H. HO H) H. OH НО (d) Name this monosaccharide unit H. OH Digitalin
An unknown has a chemical formula of C4H10O. When chromic acid was added to the unknown, it turned green. When the Lucas reagent was added to a separate portion of the unknown, it turned cloudy in 5 minutes. When NaOH and KI/iodine was added to the unknown, a yellow precipitate formed. What is the structure of the unknown compound?
Reactions of test samples with Iodoform: Cyclohexanone Acetone Benzaldehyde Glucose Fructose
Draw two major products of this reaction. Use a dash or wedge bond to indicate the stereochemistry of substituents on asymmetric centers. Ignore inorganic byproducts. Ha Pt કા
Linoleic acid is shown below. What makes this fatty acid particularly susceptible to autoxidation? 1. The red CH bond has a low bond dissociation energy because it is doubly allylic. 2. The red CH bond has a high bond dissociation energy because it is doubly allylic. 3. The red CH bond is the most accessible to reaction with O2 because it is the least sterically crowded CH bond. 4. Both 2 and 3.
what is the role of conc. H2SO4 in molisch's reagent test?
The synthesis of carbohydrates can be particularly difficult because of the large number of chiral centers and OH functional groups present. Epoxides can be useful synthetic intermediates in carbohydrate synthesis. Draw the product of the reaction of a phenyl Gilman reagent with this epoxide. Aa • Use the wedge/hash bond tools to indicate stereochemistry where it exists. Explicitly define the cis/trans stereochemistry of fused rings using wedge or hash bonds. If enantiomers are formed, draw both. Separate multiple products using the sign from the drop-down menu. .
Can 4-methylcyclohexanoic acid be reduced by NABH4?
4. The most common application of Grignard reagents is the alkylation of aldehydes and ketones. For example, 2-butanone can react with methyl magnesium bromide to generate an alcohol. iii. Give the IUPAC name of product. iv. Is the product chiral or achiral? Label the R/S notation if it is chiral. v. If 2-pentanone is used instead of 2-butanone, is the product chiral or achiral? Label the R/S notation if it is chiral.
Draw the products formed when α-D-gulose is treated with each reagent. a. CH3I, Ag2O b. CH3OH, HCl c. Ac2O, pyridine d. The product in (a), then H3O+ e. The product in (b), then Ac2O, pyridine f. The product in (d), then C6H5CH2Cl, Ag2O