Unformatted text preview: 3 MgBr 2. H 3 O + 4. At room temperature, N,N-dimethylacetamide gives three sharp singlets of equal intensity in the 1 H NMR spectrum. As the temperature is raised, two of the peaks (but not the third one) broaden and, finally at 110°C, form one sharp peak. How do you account for this? What does it indicate about the structure of the amide? 5. Predict the product of γ-butyrolactone with (a) ammonia, (b) LiAlH 4 , (c) CH 3 CH 2 OH, H 2 SO 4 . 6. Starting from caproic acid, other organic reagents (containing no more than 4 carbon atoms) and any needed inorganic reagents outline a 3-step synthesis of 3-ethyl-3-octanol....
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- Spring '09
- Carboxylic acid, acidic hydrolysis