681 24.12 (a) The compound is named as a derivative of phenol. The substituents(ethyl and nitro) are cited n alphabetical order with numbers assigned in the direction that gives the lowest number at the first point of difference OH CH,CH3 (b) An isomer of the compound in part(a) is 4-ethyl-3-nitrophenol CH3 (c) The parent compound is phenol. It bears, in alphabetical order, a benzyl group at C-4 and a chlorine at C-2 (d) This compound is named as a derivative of anisole, C6HsOCH3 Because multiplicative pre- H-C CH (e) The compound is an aryl ester of trichloroacetic acid. The aryl group is 2, 5-dichlorophenyl Back Forward Main Menu TOC Study Guide Toc Student OLC MHHE Website24.12 (a) The compound is named as a derivative of phenol. The substituents (ethyl and nitro) are cited in alphabetical order with numbers assigned in the direction that gives the lowest number at the first point of difference. (b) An isomer of the compound in part (a) is 4-ethyl-3-nitrophenol. (c) The parent compound is phenol. It bears, in alphabetical order, a benzyl group at C-4 and a chlorine at C-2. (d) This compound is named as a derivative of anisole, C6H5OCH3. Because multiplicative pre- fixes (di, tri-, etc.) are not considered when alphabetizing substituents, isopropyl precedes dimethyl. (e) The compound is an aryl ester of trichloroacetic acid. The aryl group is 2,5-dichlorophenyl. 2,5-Dichlorophenyl trichloroacetate Cl Cl 1 2 3 4 5 6 OCCCl3 O 4-Isopropyl-2,6- dimethylanisole OCH3 H3C CH3 CH(CH3)2 1 2 3 4 5 6 Cl HO CH2 1 2 3 4 6 5 4-Benzyl-2-chlorophenol OH NO2 CH2CH3 1 2 3 4 5 6 4-Ethyl-3-nitrophenol 3-Ethyl-4-nitrophenol OH CH2CH3 NO2 1 2 3 4 5 6 PHENOLS 681 Back Forward Main Menu TOC Study Guide TOC Student OLC MHHE Website