otTreatment of a carboxylic acid with trifluoroacetic anhydride leads to an unsymmetrical anhydride that rapidly reacts with alcohol to give an ester.(CF3CO)20ROHR'OH+ CF3CO₂HCF3ROR'Using the reaction of acetic acid as an example, propose a structure for the first intermediate in the reaction to form the unsymmetrical anhydride.• You do not have to consider stereochemistry.• Do not include counter-ions, e.g., Na+, I, in your answer.In cases where there is more than one answer, just give one.90-87Θ/Sn t?ChemDoodleCengage Learning Cengage Technical SupportPreviousNext>Email InstructorSave and

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Answered: ot Treatment of a carboxylic acid with…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Write a mechanism for the following reaction.
lo CI H3C H3C 07 ↔X + :0: OH Dimethylaminopyridine (DMAP) is often used as a catalyst in esterification reactions. A basic solvent such as triethylamine is used to react with the liberated proton from the alcohol group. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions CI NMe₂ N(CH₂CH3)3 CH3 6--10-- NMe2
QII: Starting from toluene as the only organic reagent you have and use any other inorganic reagents to prepare: ОН -CH НС CH,
When alkene B is treated with H2SO4 in water, two products are formed. Draw the mechanisms that explain the formation of alcohol Carid alkene D.
5. Which one of the following alkenes will produce a secondary alcohol as a major product when treated with BH3, THF followed by treatment with H2O2, H2O, NaOH? A В E
Primary amines can be converted into secondary amines by reaction with haloalkanes. This reaction is difficult to achieve in the lab because of the large number of byproducts. Select the possible products or byproducts of the reaction. H3C-NH2 The products and `Br byproducts are: (1 equiv) (1 equiv) O B D Bre HN CH, O I E A B D F Br H Br O O K E O Br O OG O A J K O O O O O O O O
42 Draw the hemiacetal and then the acetal formed in each reaction. In each case, assume an excess of the alcohol. (D) 12 (a) Propanal+ methanol → (b) Cyclopentanone + methanol- Drow the at
Which of the following is the correct intermediate for this reaction? NH2 NH2 NaNH2 NH3 A) B) D) Question 20 What will be the major product when benzaldehyde is heated with 2,4-dimethylpentanal in presence of NaOMe and MeOH? O A) CHO Me Me Me B) OH сно Me Me Me CHO Me Me D) ОНС Ме OH Me Me
6, Which one of the following alcohols can not be made by unimolecular nucleophilic substitution (SN,) of an alkyl halide with H2O? benzyl alcohol Ph:COH cydohexanol (CH32CHOH 1-propanol A В C E
H₂C OEt H₂C OEt 1. NaOEt, EtOH 2. H₂O* H₂C EtOH OEt Esters, like aldehydes and ketones, are weakly acidic. Treatment of an ester with 1 equivalent of a strong base, such as sodium ethoxide, causes a reversible carbonyl condensation to occur that forms a ẞ-ketoester. This reaction is known as the Claisen condensation. The tetrahedral intermediate thus formed expels an alkoxide leaving group to give an acyl substitution product, a ẞ-ketoester. The steps leading up to this point are all reversible. The best yields for the Claisen condensation are obtained when the starting ester has more than one acidic a-hydrogen. In these cases, a second deprotonation of the a-carbon drives the reaction equilibrium toward the product, thus requiring a full equivalent of base instead of a catalytic amount. Subsequent protonation with dilute aqueous acid resultsn a high yield of the final product. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing…
6
What aldehyde or ketone gives this alcohol upon reduction with NaBH4?

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