15. [15 points] (a) Draw the major product(s) expected for the reactions shownbelow. Indicate stereochemistry in the product when appropriate. (b) Classify eachreaction as SN2, SN1, E2 or E1 or a combination of these.(a)CI+(b)(c)محمدH3Cx(CH3)3COHNaOHDMSOSHC2H5OH, ABr+NaC2H5(d)(e)CH31C2H5OH(CH3)3COHthe maior

Answered: Image /qna-images/answer/93df33be-bb25-4ce2-9c77-eeb5b95163b2.jpg

Answered: 15. [15 points] (a) Draw the major…

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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When treated with NaOH, the bromide below gives an alkene by the E2 mechanism, by elimination of the H atom indicated by the arrow: (a) Draw the Newman projection from which elimination takes place. (b) Draw the mechanism. (c) Draw the product with the proper stereochemistry. (d) Assign the proper stereochemical descriptor to the product. (e) Give the rate equation
1. Draw the structure of all reactants and product for the following reactions. (a) 2-methyl-1-iodocyclopentane + NaOCH3 ------>A (b) A + (1) Hg(OAc)2, H2O/(2) NaBH4 ------>
Give the structures of A to E, showing the absolute stereochemistry in each case.
(a) Rank the following carbocations in order of increasing electrophilicity (1 = lowest electrophilicity, 4 = highest electrophilicity). (b) Rank the following 1,1-halomethylcyclopentanes in order of reactivity in an SN1 reaction (1 = lowest reactivity, 4 = highest reactivity. CH3 CI B with SNI, nor reactive means more stable (c) Rank the following species in terms of increasing nucleophilicity in an SN2 reaction in a po aprotic solvent (1 = lowest nucleophilicity, 4 = highest nucleophilicity).
Assign E or Z stereochemistry to each of the following alkenes, and convert each drawing into a skeletal structure (red = 0, yellow-green = Cl). (a) (b)
When treated with NaOH, the bromide below gives an alkene by the E2 mechanism, by eliminationof the circled atoms: (a) Draw the Newman projection from which elimination takes place. (b) Draw the mechanism. (c) Draw the product with the proper stereochemistry. (d) Assign the proper stereochemical descriptor to the product. (Z, E? Trans,CiS?) (e)What would happen to the stereochemistry of the product if the enantiomer of the starting material were used inthe reaction?
Rank the following alkenes in terms of increasing stability. (A) (B) (C) OC
Predict the product(s) and show the complete electron-pushing mecha- nism for each of the following dissolving metal reductions. (a) H3CC=CCH₂CH3 (b) (c) CECH 1844 Li NH3 ND3 C=C—CH3 NH3
A student adds NBS to a solution of 1-methylcyclohexene and irradiates the mixture with a sunlamp until all the NBS has reacted. After a careful distillation, the product mixture contains two major products of formula C7H11Br. (a)Rank these three intermediates from most stable to least stable.
(c) Compound 2F shown below is a tetra-substituted cyclooctatetraene. After heating 2F at 160 degree for 6 hours, researchers observed the formation of an isomer of 2F. Draw the isomer structure and provide a plausible mechanism to explain the formation of the isomers. 2F
10) Consider the following alkene hydration reaction. он H2SO, H20 Given that the reaction is endergonic by 10 kcal/mol, complete the following. (a) Draw the intermediate(s) formed in the mechanistic pathway to the major product in the indicated space below. If there are multiple intermediates label them 1, 2, 3, 4, etc. (b) Sketch a reaction-energy profile for this reaction and clearly label staring material, product, intermediate(s), transition state(s), AG" and AG (of the rate determining step) on your plot. Progress of the reaction Draw and Label Intermediate(s) Below: Potential energy
When norbornene undergoes hydroboration-oxidation, a mixture of two stereoisomers is produced in a roughly 6:1 ratio. (a) Draw both of these isomeric products. (b) Which product is favored? Hint: You should build a model of norbornene and consider the transition state leading to each product. 1. BH3 THF ? 2. H2O2, NaOH, H,O Norbornene

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