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The α\alpha -hydrogens on carbonyl carbons are unusually acidic (pKa 19-20)because: ___.

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the corresponding an...

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Which of the following is a keto-enol tautomeric pair? Which of the following is a keto-enol tautomeric pair? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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What would be the major product of the following reaction? What would be the major product of the following reaction? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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Which is the most acidic hydrogen in the compound shown? Which is the most acidic hydrogen in the compound shown? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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What product is finally formed when the initial compound formed from cyclohexanone and morpholine is mixed with methyl iodide and that product is heated and then hydrolyzed? What product is finally formed when the initial compound formed from cyclohexanone and morpholine is mixed with methyl iodide and that product is heated and then hydrolyzed? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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Compounds having two carbonyl groups separated by a carbon atom are called ___.

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blured image-dicarbony...

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Diastereomers that differ in configuration at only one stereogenic center are sometimes called ___,and their interconversion is called ___.

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epimers; e...

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Considering only the highlighted hydrogens,list the following compounds in order of decreasing acidity: Considering only the highlighted hydrogens,list the following compounds in order of decreasing acidity: A) I,II,III,IV,V B) II,V,III,I,IV C) IV,I,III,II,V D) IV,V,II,I,III E) V,IV,III,II,I


A) I,II,III,IV,V
B) II,V,III,I,IV
C) IV,I,III,II,V
D) IV,V,II,I,III
E) V,IV,III,II,I

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What would be the major product of the following reaction? What would be the major product of the following reaction? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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Which is the most acidic hydrogen in the compound shown? Which is the most acidic hydrogen in the compound shown? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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Which compound would be formed when 2-methylbutanal is treated with a solution of D+ in D2O?


A) Which compound would be formed when 2-methylbutanal is treated with a solution of D<sup>+</sup> in D<sub>2</sub>O? A) B) C) D) E)
B) Which compound would be formed when 2-methylbutanal is treated with a solution of D<sup>+</sup> in D<sub>2</sub>O? A) B) C) D) E)
C) Which compound would be formed when 2-methylbutanal is treated with a solution of D<sup>+</sup> in D<sub>2</sub>O? A) B) C) D) E)
D) Which compound would be formed when 2-methylbutanal is treated with a solution of D<sup>+</sup> in D<sub>2</sub>O? A) B) C) D) E)
E) Which compound would be formed when 2-methylbutanal is treated with a solution of D<sup>+</sup> in D<sub>2</sub>O? A) B) C) D) E)

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The conversion of The conversion of is accomplished by the use of which oxidizing agent? A) Ag(NH<sub>3</sub>) <sub>2</sub><sup>+</sup> B) O<sub>3</sub> C) NaOBr (Br<sub>2</sub> in NaOH) D) E) Cu<sup>2</sup><sup>+</sup> is accomplished by the use of which oxidizing agent?


A) Ag(NH3) 2+
B) O3
C) NaOBr (Br2 in NaOH)
D) The conversion of is accomplished by the use of which oxidizing agent? A) Ag(NH<sub>3</sub>) <sub>2</sub><sup>+</sup> B) O<sub>3</sub> C) NaOBr (Br<sub>2</sub> in NaOH) D) E) Cu<sup>2</sup><sup>+</sup>
E) Cu2+

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What synthetic strategy would accomplish the following transformation? What synthetic strategy would accomplish the following transformation? A) i) Br<sub>2</sub>,H<sub>3</sub>O<sup>+</sup>; ii) NaOC<sub>2</sub>H<sub>5</sub>,C<sub>2</sub>H<sub>5</sub>OH,heat B) i) Cl<sub>2</sub>,FeCl<sub>3</sub>; ii) NaOC<sub>2</sub>H<sub>5</sub>,C<sub>2</sub>H<sub>5</sub>OH,heat C) i) HCN; ii) H<sub>3</sub>O<sup>+</sup><sub>,</sub>heat D) i) Br<sub>2</sub>,h v ; ii) (CH<sub>3</sub>) <sub>3</sub>COK,(CH<sub>3</sub>) <sub>3</sub>COH,heat E) None of these choices.


A) i) Br2,H3O+; ii) NaOC2H5,C2H5OH,heat
B) i) Cl2,FeCl3; ii) NaOC2H5,C2H5OH,heat
C) i) HCN; ii) H3O+,heat
D) i) Br2,h vv ; ii) (CH3) 3COK,(CH3) 3COH,heat
E) None of these choices.

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Which is the most acidic hydrogen in the compound shown? Which is the most acidic hydrogen in the compound shown? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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What would be the major product of the following reaction sequence? What would be the major product of the following reaction sequence? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

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Which of these compounds would exist primarily in an enol form?


A) Which of these compounds would exist primarily in an enol form? A) B) C) D) E)
B) Which of these compounds would exist primarily in an enol form? A) B) C) D) E)
C) Which of these compounds would exist primarily in an enol form? A) B) C) D) E)
D) Which of these compounds would exist primarily in an enol form? A) B) C) D) E)
E) Which of these compounds would exist primarily in an enol form? A) B) C) D) E)

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Which reagent would best serve as the basis for a simple chemical test to distinguish between Which reagent would best serve as the basis for a simple chemical test to distinguish between A) NaOI (I<sub>2</sub> in NaOH) B) Br<sub>2</sub>/CCl<sub>4</sub> C) CrO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub> D) NaHCO<sub>3</sub>/H<sub>2</sub>O E) Ag(NH<sub>3</sub>) <sub>2</sub><sup>+</sup>


A) NaOI (I2 in NaOH)
B) Br2/CCl4
C) CrO3/H2SO4
D) NaHCO3/H2O
E) Ag(NH3) 2+

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Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T2O?


A) Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T<sub>2</sub>O? A) B) C) D) E)
B) Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T<sub>2</sub>O? A) B) C) D) E)
C) Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T<sub>2</sub>O? A) B) C) D) E)
D) Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T<sub>2</sub>O? A) B) C) D) E)
E) Which compound would be formed when 2-methylbutanal is treated with a solution of NaOT in T<sub>2</sub>O? A) B) C) D) E)

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What is the final product of the following reaction sequence? Give structural details of all significant intermediates. What is the final product of the following reaction sequence? Give structural details of all significant intermediates.

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Which of the following represent keto-enol tautomers?


A) Which of the following represent keto-enol tautomers? A) B) C) D) More than one of these choices. E) None of these choices.
B) Which of the following represent keto-enol tautomers? A) B) C) D) More than one of these choices. E) None of these choices.
C) Which of the following represent keto-enol tautomers? A) B) C) D) More than one of these choices. E) None of these choices.
D) More than one of these choices.
E) None of these choices.

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