Chemistry 222 Chapter 9 Problems with Answers

Chemistry 222 Chapter 9 Problems with Answers - Chemistry...

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Chemistry 222 Chapter 9 Problems and Answers 9.15 Draw structural formulas for these aldehydes a. Formaldehyde b. Propanal c. 3,7-Dimethyloctanal d. Decanal e. 4-Hydroxybenzaldehyde f. 2,3-Dihydroxypropanal O H H O H O H a. b. c. O H O H HO O H OH HO d. e. f. 9.16 Draw structural formulas for these ketones. a. Ethyl isopropyl ketone (2-methyl-3-pentanone) b. 2-Chlorocyclohexanone
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c. 2,4-dimethyl-3-pentanone d. Diisopropylketone (2,4-dimethyl-3-pentanone) e. Acetone f. 2,5-Dimethylcyclohexanone O O Cl O O O a. b. c,d. e. f. 9.17 Write IUPAC names for these compounds. (CH 3 CH 2 CH 2 ) 2 C O O CH 3 H 3 C H CHO CH 3 H 3 C CH C H OH O CH 2 CCH 3 HC(CH 2 ) 4 CH O O O a. b. c. d. e. f. 4-heptanone 2-methylcyclopentanone cis -2-methyl-2-butenal 2-hydroxypropanal 1-phenyl-2-propanone hexanedial 9.19 Explain why each name is incorrect.
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O a. 3-Butanone (shown at left) should be named 2-butanone b. 1-Butanone. Ketones cannot be positioned at the end of a C chain. The structure must really be an aldehyde, specifically, butanal.
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