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11 Nov 2019
(27) 1. Provide reasonable product structures for each of the following reactions. Assume you have enough reagents for the reactions to go to completion. NaBH4 MgBr KCN/HCI H'(cat) NH2 H2N-OH H'(cat) H(cat) NalO4 (5) 2. Which atom better fits the description below. Give a brief explanation to justify your choice. (A correct choice is worth points and a correct explanation will bring the total to 5 points. NH More nucleophilic nitrogen atom (18) 3. Provide reasonable product structures for each of the following reactions. If you expect more than one organic product, give them all, even if you have only one box. The molecular formulas for the products of the reactions on the right are given underneath the boxes. H20 H (cat) NH, H20 H (cat) NH C HI3N (10) EXTRA: For the following pair of compounds, select the one compound that will undergo acid hydrolysis faster. You must provide a detailed mechanistic rationale (e.g. differences in intermediate structures) for your answer. The correct selection is worth 2 points. The correct reason is worth 3 points and the structure of the critical intermediate for the mechanism is worth 2 points. (HINT Stable intermediates mean faster reactions) DRAW THE FINAL PRODUCT(S) (3 pts). H,O VS. INTERMEDIATE FINAL PRODUCT(S)
(27) 1. Provide reasonable product structures for each of the following reactions. Assume you have enough reagents for the reactions to go to completion. NaBH4 MgBr KCN/HCI H'(cat) NH2 H2N-OH H'(cat) H(cat) NalO4 (5) 2. Which atom better fits the description below. Give a brief explanation to justify your choice. (A correct choice is worth points and a correct explanation will bring the total to 5 points. NH More nucleophilic nitrogen atom (18) 3. Provide reasonable product structures for each of the following reactions. If you expect more than one organic product, give them all, even if you have only one box. The molecular formulas for the products of the reactions on the right are given underneath the boxes. H20 H (cat) NH, H20 H (cat) NH C HI3N (10) EXTRA: For the following pair of compounds, select the one compound that will undergo acid hydrolysis faster. You must provide a detailed mechanistic rationale (e.g. differences in intermediate structures) for your answer. The correct selection is worth 2 points. The correct reason is worth 3 points and the structure of the critical intermediate for the mechanism is worth 2 points. (HINT Stable intermediates mean faster reactions) DRAW THE FINAL PRODUCT(S) (3 pts). H,O VS. INTERMEDIATE FINAL PRODUCT(S)
Jarrod RobelLv2
26 Jan 2019