K Problem 21 of 24 Submit Draw the missing organic structures in the following multistep synthesis. Show the final product at physiological pH (pH = 7.4). Ignore any inorganic byproducts formed. H 0 NH3 Select to Draw HCN H+, H2O Select to Draw Select to Draw Δ
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- CH30 carboxylic acid CH3C-OH ester 0 0 CH3COČCH, anhydride CH3CH2CHËI amide CH2CH3 CH3CH2CHCOCI none of the above ČH2CH3 Cengage Learning | Cengage Technical Support e y-axis and pH on the x-axis. If the points stv N IVUL 4IL VL LLIV VM tPredict the products, if any, of the following reactions. 20-35 (a) ascorbic ac (1) LiAlH4 -COOH (2) H3O+ (b) (1) NaCN CH₂Br (2) H3O+, heat (c) (1) SOCl2 (d) KMnO4, H₂O oct-4-yne (warm, concd.) (2) AlCl3 COOH (e) CH₂OH Na2Cr2O7, H2SO4 (f) Ph (1) BH3.THF CH3CH2-CH-COOH (2) H₁₂O+Nitesh
- Isoleucine, another of the twenty amino acids found in proteins, is metabolized by a pathway that includes the following step. Propose a mechanism.As far back as the 16th century, South American Incas chewed the leaves of the coca bush, Erythroxylon coca, to combat fatigue. Chemical studies of Erythroxylon coca by Friedrich Wöhler in 1862 resulted in the discovery of cocaine, C17H21NO4, as the active component. Basic hydrolysis of cocaine leads to methanol, benzoic acid, and another compound called ecgonine, C9H15NO3. Oxidation of ecgonine with CrO3 yields a keto acid that readily loses CO2 on heating, giving tropinone. (a) What is a likely structure for the keto acid? (b) What is a likely structure for ecgonine, neglecting stereochemistry? (c) What is a likely structure for cocaine, neglecting stereochemistry?Acid-catalyzed hydrolysis of a nitrile to give a carboxylic acid occurs by initial protonation of the nitrogen atom, followed by nucleophilic addition of water. Review the mechanism of base-catalyzed nitrile hydrolysis in Section 20-7 and then predict the products for each reaction below and write all of the steps involved in the acid-catalyzed reaction, using curved arrows to represent electron flow in each step.
- Which of the following reactions gives the product shown? H2 O Ph CO-H CO,H Ph Pd/C LIAIH. Ph .cOH O Ph но. Ph PBr. Ph Br H2 O Ph Ph' он Pd/C1) CO2 (s) g) Ph(CH:)MgBr 2) 11 (aq) H'(aq)/A h) 6-Bromohexanoic Acid + NACN- 1) NaOEt/ELOH i) PhCOHC-CH2 + CH:(CO Et) 2) H (aq), A,-CO. Butanoic Acid 1 equivalent Bry/P H.NEt k) Methyl Benzoate NaOMe/MEOHI I) 2 (Ph) CHCOOME -Describe the reaction to form the catalyst L-prolinamide. (reaction is added below) .