8.2 ppm, accounts for four of the unsaturations. The appearance of the aromatic protons as apair of doublets with a total area of 4 suggests a para-disubstituted ring.That compound B is a carboxylic acid is evidenced by the singlet (area51) atd12.1 ppm.The remaining1H NMR signals—a quartet atd3.9 ppm (1H) and a doublet atd1.6 ppm(3H)—suggest the fragment CH—CH3. All that remains of the molecular formula is—NO2.Combining this information identifes compound B as 2-(4-nitrophenyl)propanoic acid.SELF-TESTPART AA-1.Provide an acceptable IUPAC name for each of the following:A-2.Both of the following compounds may be converted into 4-phenylbutanoic acid by one
This is the end of the preview. Sign up
access the rest of the document.