8.Answer both parts A and B.A:Give mechanisms for all three reactions (a-c).H,1BO/HO-(a)HO,18ö(b)H;CH3C OH+ H®OCPH;(c)PhPhMEOH/MeO--Ph-Ph+ Me,0Me-OPhPhWhen MeCO2Et is heated with acid in H2180 and the reaction is quenched before it is complete,both starting material and the ethanoic acid produced are labelled with 180. Explain.B:

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Answered: 8. Answer both parts A and B. A: Give…

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter22: Carbonyl Alpha-substitution Reactions

Section22.SE: Something Extra

Problem 63AP: As far back as the 16th century, South American Incas chewed the leaves of the coca bush,...

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(a) Illustrate the following name reactions giving suitable example in each case :(i) Clemmensen reduction (ii) Hell-Volhard-Zelinsky reaction(b) How are the following conversions carried out?(i) Ethylcyanide to ethanoic acid (ii) Butan-l-ol to butanoic acid(iii) Benzoic acid to m-bromobenzoic acid
Propose a detailed mechanism for the reaction below (in the attached picture), showing the structure of thestable intermediate and using curved arrows to indicate electron flow in each step
Propose a plausible mechanism for the following formation:
Enamines formed from the cyclic secondary amine pyrrolidine are important intermediates in the synthesis of 1,5-diketones. (1st pic) On the structures provided below, draw arrows showing electron flow for the reaction mechanism for the acetic acid-catalyzed formation of an enamine from cyclohexanone and pyrrolidine. (2nd pic)
To prepare butanoic acid from 1-propanol, which sequence of reagent(s) is/are best employed? a) (1) NaCN; (2) H2O; (3) [H+] b) LiAlH4 c) K2Cr2O7 in acid d) (1) PBr3; (2) NaCN; (3) H2O; (4) [H+]
-Reactions E1 and E2 with AlcoholsIt develops the following reaction mechanisms and the main and secondary products:
Explain this result: Acetic acid (CH3COOH), labeled at its OH oxygen with the uncommon 18O isotope (shown in red), was treated with aqueous base, and then the solution was acidified. Two products having the 18O label at different locations were formed.
Give the mechanism and product for the reaction below.
After E2 elimination, will the following molecule contain deuterium? Why or why not?
Which or which of the statements given below is correct. I) Maleic anhydride is a carboxylic acid derivative and its reaction with water is a reduction reaction. II) Fumaric acid and maleic acid are stereoisomers of each other III) Since fumaric acid has a more stable structure than maleic acid, its boiling point is higher. A. Solo I B. I and III C. II and III D. I, II, III E. Solo III
10.14 Complete the following reactions: Show the step-by-step process. Do not use shortcut methods. Make it as detailed as it can be. Encode (not hand-written)!
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 WĂ¶hler 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?

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