The key enantioselectivity determining step in the synthesis is given below. Provide a mechanism. Br Ts 20 mol% CO₂H 5 mol % Pd(OAC)2 15 mol% PPh3
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- Provide the structure(s) of the expected major organic product of the reaction shown. 1) Disiamylborane 2) H₂O₂, NaOH OI O II ||| O IV OV CH3CH₂C(CH3)2C=CH OH OH xx xo IVC10T03Q1068 Give the major product of the following reaction. HBr ((CH3)3CO)2Provide the major organic product of the reaction shown below. H₂C mmmm/ NaSCH₂CH₂
- Alcohols are important for organic synthesis, especially in situations involving alkenes. The alcohol might be the desired product, or the OH group might be transformed into another functional group via halogenation, oxidation, or perhaps conversion to a sulfonic ester derivative. Formation of an alcohol from an alkene is particularly powerful because conditions can be chosen to produce either the Markovnikov or non-Markovnikov product from an unsymmetrical alkene. Using your reaction roadmap as a guide, show how to convert 4-methyl-1-pentene into 5-methylhexanenitrile. You must use 4-methyl-1-pentene and sodium cyanide as the source of all carbon atoms in the target molecule. Show all reagents needed and all molecules synthesized along the way.Complete the reaction schemes below providing the reagents required to achieve thetransformation. More than one step may be necessary for each scheme.Provide the curved-arrow mechanism to account for the following nucleophilic addition reaction. H20 EN NaOH NH2
- Give the major organic product(s) for each of the following reactions (a) + H2 1. (CF3CO0)2Hg. CH3OH (b) 2, NABH435) What is the correct order of reagents to achieve the following synthesis? A) i) NH2NH2, H3O* (aq); ii) NaOH (aq) & A Reactant structure: Target molecule: B) i) LIAIH«, THF; ii) H2O & A C) i) NABH4, EtOH; ii) H2O & A CH3 CH3 D) i) DIBAL-H ii) H3O* (aq) & A(c) Propose a synthesis of C from D and any other reagents of your choice. Show reaction mechanisms and discuss regioselectivity. Ph N. S. Ph Ph .CO,Me NH2 C D
- select the appropriate ., provide the starting material and intermediates used to complete the following multistep synthesis starting material. 1) NaNH2 Ph 2) CH31 3) Na, NH3 Br A B C4. Complete the outlined reaction sequence by drawing structures for the major products expected. Zn(Hg) C2, 1 eq. КОН HCI(aq) UV-light heat AIC3Chemistry Provide reagents/conditions to accomplish the following syntheses. Several steps are required in some cases.