12. Propose a reasonable synthesis for the following molecule. You must use the given starting materials...
Problem 3 Propose a synthesis of the following molecule from the given starting material. You may use any reactions we have learned in this course so far, and any reagents containing the carbon atoms you need. If you make a mixture in any of the steps, place a box around the compound you would separate from the mixture, and carry on with your synthesis assuming you can isolate the desired regioisomer. NH2
Give a reasonable synthesis for each of the following compounds from the indicated starting materials. You may use any other organic or inorganic reagents you wish unless otherwise indicated. The desired product for each reaction you propose must be the one of the predominant products. Give the reactants, conditions (where appropriate) and products of each synthetic step. If equal mixtures are anticipated (i.e. ortho / para products) then indicate where separations are needed. NO MECHANISMS! [6 points 2. Give a...
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
Propose a synthesis of the following molecule starting with the indicated starting molecules as the only allowed carbon sources and any needed inorganic reagents. Br B(OH)2 + ethyne ethyl iodide
5 (20 pts) (a) Propose a reasonable synthesis, using indicated diketone as starting material. ri and any C4 or less starting materials (SMS) (any reagents are allowed) Hint: as a C3 SM use (6) Propose two syntheses, which will use two distinct methods for construction of the 6-membered ring (1) Crossed-Claisen condensation and (2) Claisen condensation(s). 0 0 selor must use this reagent plus any acyclic Cg or less
4. Propose an efficient synthesis of the molecule below starting with benzene. You can use any other reagents you want. NOTE: Some reactions produce ortho- and para-products. It is allowable to just take ONE of the products and use it in the next synthesis or claim it as the final product (we assume that ortho- and para-products can be separated). (3 points) CH2CH2CH Br
3. Propose a synthesis of the molecule below starting with ethylbenzene. You can use any other reagents you want. (2 points) COOH Br
10. Bonus: Propose a reasonable synthesis for one of the starting material product pairs using any additional reagents you may require. Br - Br-> dat duon s- OH
11. Propose a synthesis for each compound below. You must write in all necessary reactants, reagents, and solvents to receive full credit. Your starting materials must be 3 carbons or less. If you use an ionic or organometallic species, you must show how it was synthesized from a neutral, covalent species. Any species that adds carbon to your product must be synthesized from a molecule of 3 carbons or less. Only show the steps of your synthesis- do not put...
3. Propose reasonable syntheses of each of the following compounds from the given starting materials. You may use any other readily available alkyl halides, solvents and reagents as necessary. More than one step is necessary. Show all intermediates, reactions, reagents and conditions clearly. It is not necessary to show the mechanism. HCECH HCECH , X HCECH HC=CH M H OHC (30 marks)