NBS is a selective brominnation reagent at allylic and benzylic positions.
Please answer all components. Question 7 (15 points) Propose a stepwise synthesis for the following reaction....
please answer and show work for stepwise synthesis and other questions. 1. Provide a stepwise synthesis for the dipeptide Ser-Phe. Draw all steps including protecting groups. H2N-CH-C-OH H2N-CH-C-OH CH2 Phe Ser 2. Using ethyl 3-methylbutanoate as your only source of carbon and using any other reagents necessary, propose a stepwise synthesis for the following conversion. 3. Provide the reagents necessary to carry out the following conversion. 4. Provide the structures of the products in each step of the following reaction...
Please propose a synthesis of the following compounds from the given starting materials. You may use any other reagents and/or additional carbon containing compounds you wish. Multiple steps may be required. OO O I H^CH3 NO2 N
Question 4 (14 points) Propose a synthesis. You may use any reagents you wish. H2 Question 5. (15 points). Perform a Robinson Annulation on the following reagents, showing full formal arrow-pushing. Be sure to end as a ketone! Clearly indicate your product in your answer. You may use any reagents you wish. NH2 Question 6. (20 points) Draw the following reagent in its most stable chair form. Show your process to ensure partial credit. CHO HO OH HO OH CH,OH
7. Synthesis Problem (15 points) Show how you would synthesize 3 of the 4 following compounds in one chemical reaction. You may use any starting material you wish and any organic and inorganic reagents. Clearly indicate which ones you want graded by circling the molecules н, осн, Br ОН
Please answer the question completely. 10. Propose a synthesis for two of the following molecules. You may start from any compound of 3 carbons or fewer, and usc benzene, acctylenc, and any functional group as a starting material to make the final product as shown. You may use anly reactions you choose. (15 points each): على علیہ تعمل اللہ تہ
Please do all parts. 7. Do all parts: a. Starting with benzene propose both a retrosynthesis and a stepwise synthesis for the following compound. (12 points) LOH Br b. Provide a stepwise, curved arrow mechanism points) for the following reaction. (8 AICI3
Provide a stepwise synthesis for the following reaction. you may use the indicated starting materials as well as any organic or inorganic reagents.
Provide a reasonable synthesis Question (2)- Propose a reasonable synthesis of 9 starting from 7 and 8 using any other reagents you might require. (15 pts) OH 7 он
Question 3 Propose a stepwise synthesis for N-propylbutanamide, using 1-propanol and/or carbon dioxide as your only source of carbon and any other reagents necessary. Testbank, Question 140a Using the reagents below, list in order (by letter, no period) those necessary to provide this synthesis Note: Not all spaces provided may be needed. Hints: First receive a Grignard reagent in steps 1 and 2. Use propanol in step 5. In step 9 a product from step 4 reacts with a product...
7. MECHANISM: Give the complete stepwise mechanism to account for the following observation. Use curved arrows to show FLOW OF ELECTRONS. [9 points H-CI 8.RETROSYNTHETIC ANALYSIS Give a reasonable synthesis for the following compound from the indicated starting materials. You may use any other organic reagents or inorganic reagents you wish. The desired product for each reaction must be the MAJOR PRODUCT. Give the reactants, conditions (where appropriate), and products of each synthetic step but NO MECHANISMS. [6 points] OH...