Unformatted text preview: A loses its proton more slowly than compound B . Explain. Use chemical structures to clarify your reasons. H CN Ph Ph A H CN Ph Ph B 4. Phenylpropanoic chloride, C 6 H 5 CH 2 CH 2 COCl, react with AlCl 3 to give a single product with the formula C 9 H 8 O and an 1 H NMR spectrum with signals at δ = 2.53 (triplet, J = 8 Hz, 2H), 3.02 (triplet, J = 8 Hz, 2H), and 7.2-7.7 (multiples, 4 H). Propose a structure for the product and suggest a mechanism for its formation. 5. Suggest a mechanism for the reaction shown below that accounts for the indicated stereochemical result. H HO CH 3 O H CH 3 1. AlCl 3 2. H 3 O + + 6. Write a stepwise mechanism for the following reaction. Use curve arrows to show the flow of electrons in each step. + 1. AlCl 3 2. H 3 O + CH 2 Cl 2...
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- Spring '09
- Proton, Nuclear magnetic resonance, Proton NMR, 1H NMR spectrum