CHAPTER 20 CARBOXYLIC ACID DERIVATIVES NUCLEOPHILIC ACYL SUBSTITUTION SOLUTIONS TO TEXT PROBLEMS 20.1 (b) Carboxylic acid anhydrides bear two acyl groups on oxygen, as in RCOCR. They are named as derivatives of carboxylic acid CH CH.CHCOH CH CH..CH C6Hs C6H 2-Phenylbutanoic acid 2-Phenylbutanoic anhydride (c) Butyl 2-phenylbutanoate is the butyl ester of 2-phenylbutanoic acid CHCH, CHCOCH, CH, CH,CH (d) In 2-phenylbutyl butanoate the 2-phenylbutyl group is an alkyl group bonded to oxygen of the ester. It is not involved in the acyl group of the molecule CH, CH,CH,COCH,CHCH, CH 2-Phenylbutyl butanoate 536 Back Forward Main Menu TOC Study Guide Toc Student OLC MHHE WebsiteCHAPTER 20 CARBOXYLIC ACID DERIVATIVES: NUCLEOPHILIC ACYL SUBSTITUTION SOLUTIONS TO TEXT PROBLEMS 20.1 (b) Carboxylic acid anhydrides bear two acyl groups on oxygen, as in . They are named as derivatives of carboxylic acids. (c) Butyl 2-phenylbutanoate is the butyl ester of 2-phenylbutanoic acid. (d) In 2-phenylbutyl butanoate the 2-phenylbutyl group is an alkyl group bonded to oxygen of the ester. It is not involved in the acyl group of the molecule. CH3CH2CH2COCH2CHCH2CH3 O C6H5 2-Phenylbutyl butanoate CH3CH2CHCOCH2CH2CH2CH3 O C6H5 Butyl 2-phenylbutanoate CH3CH2CHCOCCHCH2CH3 O O C6H5 C6H5 CH3CH2CHCOH O C6H5 2-Phenylbutanoic acid 2-Phenylbutanoic anhydride RCOCR O O 536 Back Forward Main Menu TOC Study Guide TOC Student OLC MHHE Website