37. Identify the following as hemiacetal or acetal. (2 marks) a. -CHE b. -CHE H3C- OH...
35. Write the IUPAC name for the following compound. CH3 H₃C & E -CHE H obo ludibo CH2 heya ni tolon CH2 bomo guolis CHE 36. Draw the line angle formula for the product of the following reaction. H + H2O 37. Identify the following as hemiacetal or acetal. (2 marks) a. b. -CH3 CH3 H3C- -ОН H3C с CH3 38. Draw the condensed structural formula for 3-methyl-1-butanol. 39. Draw the major product for the following reaction. OH Ht, Heat...
5. a) Identify each compound below as either an acetal, a ketal, a hemiacetal or a hemiketal. b) Identify any that contain a chiral center. gar no но осна 6. Draw (a) the hydrate of each of these compounds, and (b) the product when each is heated with excess ethanol with an acid catalyst. (a) Hydrate (b) ethanol product Oy
Which of the following statement is correct about the mechanism of hemiacetal and acetal formation? A. In the hemiacetal formation mechanism, the oxygen on the alcohol uses its lone pair to "attack the carbonyl carbon before the protonation of the carbonyl oxygen B. The carbocation formation is not favored during the hemiacetal formation mechanism, this is why hemiacetal are generally unstable and very reactive C. In the acetal formation mechanism, hydrolysis of water to the hemiacetal carbon center occurs as...
OH inctional group as an alcohol, ether, acetal, or 16.72 Label each functional group as an hemiacetal. осна OCH OCH CH2CH3 ОН b. CH3-C-OCH,CH,CH3 CHE 16.73 What acetal is formed when each aldehyde or ketone is
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1. a) Identify each of these compounds as a hemiacetal, hemiketal, acetal, ketal, imine, or enamine b) Draw the carbonyl compound and nucleophile(s) from which each was formed. CH3 HO CH3 OCH3 CH3
Map at assify these structures as hemiacetal, hemiketal, acetal, ketal, or other. Each structure needs to go int a box, and they will shrink to fit as needed when you put more than one in a box. Jasperse: Read the hint before you start, because I didn't emphasize the distinction between hemiacetals and hemiketals, or between acetals and ketals. Hemiacetal Hemiketal Acetal Ketal Other ОН OCH3 CH3COCH3 CH2CH3 O II CH3COCH3 OH CH3 | CH3CHOCHZ OCH3 CH3 H3COH H3C CH3...
10. Consider the disaccharide below. a. Label any acetal and hemiacetal in the disaccharide. b. Number each monosaccharide ring. c. Classify the glycosidic linkage as a or B and use the numbers to designate its location. d. What monosaccharides form when the disaccharide is hydrolyzed? CH2OH - CH2OH Конвенон OH 9. Consider the following cyclic monosaccharide. a. Label the hemiacetal carbon. b. Label the monosaccharide as an aor B anomer. c. Draw the other anomer. d. Assume that this is...
Select whether each compound has an alcohol, ether, acetal, or hemiacetal. a. ОСН, CH3-C-H OCH3 (select) ОСН2СН3 CH3-C-H OH b. (select) OCH3 HOCHCHCH2CH3 (select) (select) A
Identify the compound that forms the cyclic hemiacetal. Draw the reaction that produces the hemiacetal. OH 6-hydroxyheptanal. 5-hydroxyheptanal 6-hydroxy-3-heptanone 5-hydroxy-2-heptanone
Name the following compounds. 2 CH2-HC A CHE-NH CH, —CHE H3C Name HO Br B Name