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Unformatted text preview: Pre-Lecture Questions for November 29, 2007. 1. (6 Marks) Two retrosynthetic pathways are provided below for the synthesis of sec-butylcyclopentane. Explain if both routes are equally acceptable and if not, explain why one is BEST. Br + MgBr Br + Br Route a Route b TARGET MgBr + Br Br + Br 2. (14 MARKS) Complete the following scheme by providing ALL intermediate and final products.
A CH3Li Br2 B Cl NaNH2 (excess) E KMnO4 H+ D 1. HBR2 2. H2O2 H2O, HO C NaOH F OTs G 3. (10 MARKS) Construct 1H NMR spectra for products D and G. Product D 10 8 6 PPM 4 2 0 Product G 10 8 6 PPM 4 2 0 ...
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- Fall '06
- GANEM, B
- Nuclear magnetic resonance, Proton NMR, Carbon-13 NMR