Concept explainers
Interpretation:
The distinguishing test for the given compounds is to be determined.
Concept Introduction:
▸ The pyranoses are six-membered monosaccharide ring structures. The name signifies heterocycle
▸ Pyranoses are the hemiacetals having ring structures of the
▸ Benedict’s test is a typical chemical method used to oxidize aldoses and ketoses. This particular test can be used as a colorimetric analysis tool and a positive or negative test can help in the distinction of different types of carbohydrates. Tollen’s reagent, which is composed of silver nitrate and ammonia can also selectively oxidize
Want to see the full answer?
Check out a sample textbook solutionChapter 22 Solutions
Organic Chemistry
- β-d-gulopyranose + hydrogen gas and a platinum catalyst.arrow_forwardIdentify A, B, C, and D in the preceding problem if D is oxidized to an optically inactive aldaric acid; if A, B, and C are oxidized to optically active aldaric acids; and if interchanging the aldehyde and alcohol groups of A leads to a different sugar.arrow_forward(i) Acetylation of glucose with acetic anhydride gives glucose pentacetate. Write the structure of the pentacetate. (ii) Explain – Why glucose pentacetate does not react with hydroxylamine?arrow_forward
- A D-aldopentose A is oxidized to an optically inactive aldaric acid with HNO3. A is formed by the Kiliani–Fischer synthesis of a D-aldotetrose B, which is also oxidized to an optically inactive aldaric acid with HNO3. What are the structures of A and B?arrow_forwardThe cyclic hemiacetal is more stable than the open-chain form, so very little of the open-chain form is present atequilibrium. Will an aqueous solution of glucose reduce Tollens reagent and give a positive Tollens test? Explain.arrow_forward19 & 20. 19. 20. Consider the following synthetic estrogen shown below O= H Im Compound X The maximum number of stereoisomers in X is Illllllll CH3 a OH CH3 Draw compound X below and prioritize the groups present in the stereocenter labeled as a.arrow_forward
- Give me a clear handwritten answer with explanationarrow_forwardAnswer ALL parts of this question. (a) Provide the structure and name of the aldehyde with the formula, C2H4O. (b) Draw the two steps of the Strecker synthesis used for the conversion of the aldehyde in part (a) into racemic alanine. (c) Draw the (R) and (S) enantiomers of alanine. Which is the naturally occurring enantiomer? (d) Draw the structure of the dipeptide, Ala-Gly.arrow_forward21.41 Identify a systematic (IUPAC) name for each of the following compounds: (a) OH (b) NH2 (c) CIarrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning