(a)
Interpretation:
The relationship between glucose and mannose is to be stated as they both give same osazone.
Concept Introduction:
Aldose are the carbohydrates which contains
(b)
Interpretation:
The aldopentose that gives the same osazone as
Concept Introduction:
Aldose are the carbohydrates which contains aldehyde as functional group. Osazone are formed when carbohydrates reacts with excess of phenylhydrazine. In osazone formation the stereochemistry of
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Organic Chemistry
- Quinapril (trade name Accupril) is used to treat high blood pressure and congestive heart failure. One step in the synthesis of quinapril involves reaction of the racemic alkyl bromide A with a single enantiomer of the amino ester B. (a) What two products are formed in this reaction? (b) Given the structure of quinapril, which one of these two products is needed to synthesize the drug?arrow_forwardConsider the tetracyclic compound with rings labeled A–D. (a) Which ring is the most reactive in electrophilic aromatic substitution? (b) Which ring is the least reactive in electrophilic aromatic substitution?arrow_forward(a) Which compounds (B–F) are identical to A? (b) Which compounds (B–F) represent an isomer of A?arrow_forward
- (a) Why are alkyl halides insoluble in water? (b) Why is Butan-l-ol optically inactive but Butan-2-ol is optically active? (c) Although chlorine is an electron withdrawing group, yet it is ortho-, Para- directing in electrophilic aromatic substitution reaction. Why?arrow_forward(b) Classify the following alcohols in order of increasing ease of acid-catalyzed dehydration.Justify your answers.arrow_forwardDraw the structures of the following compounds. (a) tert-pentyl iodidearrow_forward
- Which polymer do you think has the higher Tg, Kevlar (see Solved Problem 26.11) or the polyphthalamide described in Problem 26.12 (p. 1328)? Explain your reasoning.arrow_forward26(a) Name the following compound.arrow_forwardGive the chemical names of the corresponding structures for compounds A and B.arrow_forward
- (a) One test for the presence of an alkene is to add a smallamount of bromine, which is a red-brown liquid, and lookfor the disappearance of the red-brown color. This test doesnot work for detecting the presence of an aromatic hydrocarbon.Explain. (b) Write a series of reactions leading topara-bromoethylbenzene, beginning with benzene andusing other reagents as needed. What isomeric side productsmight also be formed?arrow_forwardCiprofloxacin is a member of the fluoroquinolone class of antibiotics.(a) Which of its rings are aromatic?arrow_forwardWhich of (a)-(d) is not aromatic? (B) (A) (C) (D)arrow_forward