ACS Review 18 Enols and Enolates

ACS Review 18 Enols and Enolates - ACS Review Enols and...

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ACS Review Enols and Enolates 1. Which of the following have an enol form? I. benzaldehyde, C 6 H 5 CHO II. 2,2-dimethylpropanal, (CH 3 ) 3 CCHO III. 2-chloropropanal, CH 3 CHClCHO A. only I B. only II C. only III D. all of them have an enol form 2. Which one of the following has two different enol forms? A. cyclohexanone B. 2,2-dimethylcyclohexanone C. 3,3-dimethylcyclohexanone D. 4,4-dimethylcyclohexanone 3. How many alpha hydrogens are there on 2,4-dimethyl-3-pentanone? A. two B. three C. four D. six 4. Identify the most acid hydrogen for the following compound. A. 1 B. 2 C. 3 D. 4 5. What is the product of the reaction below? A. A
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B. B C. C D. D 6. Arrange the following compounds in order of decreasing acidity. A. I > II > III B. II > III > I C. III > II > I D. III > I > II 7. Identify the keto form of the following enol. A. 1-penten-3-one B. ( E )-3-penten-2-one C. 2-pentanone D. ( E )-3-pentenal 8. What is the relationship between keto and enol tautomers? A. resonance forms B. stereoisomers C. constitutional isomers D. different conformations of the same compound 9. Which of the following has the highest percentage of enol in a keto-enol equilibrium?
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This note was uploaded on 12/17/2010 for the course CHEM 101 taught by Professor Silva during the Spring '08 term at Binghamton.

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ACS Review 18 Enols and Enolates - ACS Review Enols and...

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