5. 10 points Chose ONE of the following transformations and propose multi-step chemical syntheses for the...
Propose multi-step chemical syntheses for the product on the right from the starting material provided, they require more than one step. You can use any reagent with up to four carbons. Show the product for each step in your synthesis. 5. 110 points] Chose TWO of the following transformations and propose multi-step chemical syntheses for the product on the right from the starting material provided. All syntheses require more than one step. You can use any reagent with up to...
Please CHOoSE ONE the transformations below and propose a synthetic pathway. You must use the starting material given and any other reagent/compound you want. Indicate clearly which synthesis you did. No mechanism needed, only a list of reagents. (16 points) Eto B: HBr A19 3 /, 2n 20 250 4
2. Design multi-step syntheses for TWO of the following targets. Show the reagents needed for each step and the product of each step. Special conditions: You must use cyclopentadiene as your starting material for all syntheses. You may use organic reagents containing 4 or fewer carbons, and any inorganic reagents. For any Diels-Alder reaction that you use (necessary for all targets!), the dienophile must be an a,ß-unsaturated carbonyl compound. Target 1: HO D Target 2: Doe Target 3: ro Target...
9. (7) Write a complete multi-step synthetic route for the following transformations, using only the given starting material(s) as the sole source(s) of carbon. You do not have to show the synthesis of solvents or reagents if they are not incorporated into the final product. Clearly (in) Show all intermediate steps and reagents, but do not show any mechanisms or transition states. (24 points): a) Y. I-oyar onbino - we
8. Propose syntheses that would be necessary to carry out the following transformations. Make sure to show intermediates for full credit. Chose 2 out of the 3, and if you try all 3, put an X across the one you don't want graded. Otherwise, we will grade the first 2. (12 points, 6 points each) 8a. он он 8b. 8c. 9. Show a structure consistent with the following NMR that has the molecular formula CoH120. (10 points) 3 H, S...
4. 1) LIAIH 2) H20 5. Propose an efficient synthesis for one of the following transformations. Please circle the synthesis you are completing. More than one step will be required; be sure to number each step. It will be significantly easier to award partial credit if you show the intermediate product after each step. CN Br ОН OR OH + enantiomer
4. (8 points) Devise multi-step syntheses for the following two targets. You must use the given starting materials as the only carbon source. You can use any other organic and inorganic reagents. steps a. V OH - starting material target
Synthesis 1. The following transformations cannot be performed in one step. Provide a sequence of reactions to convert the "starting material to the "product." Show all the reagents and synthetic intermediates. You can use any additional carbon sources if needed, but you must use the starting material given
Synthesis The following transformations cannot be performed in one step. Provide a sequence of reactions to 1. convert the "starting material" to the "product." Show all the reagents and synthetic intermediates You can use any additional carbon sources if needed, but you must use the starting material given. H но он Br 1
Provide a feasible multi-step synthesis for the following compound. Each blank corresponds to a one letter answer. Assume you have enough of your reagent to do the reaction: if you need two equivalence you don't need to repeat the letter. Assume a mild acid aqueous workup at the very end of the reaction sequence. COMPOUND: Starting material and Reagent Bank: D G ce * Br NaOEt, EtOH OEt B E H Br H307, heat Eto OEt F - Br CO2...