2.2540. Which of the following reagents carry out syn-dihydroxylations on alkenes?I. 1.OsO4; 2. Na2SO3, H₂OII. H3O+III. 1. RCOзH; 2. H₂O/H3O+IV. Cold KMnO4, -OH diluteA. III & IVB. I & IVC. II & IIID. I & II41. Which of these compounds has the highest boiling point? Which has the lowest boilingpoint?IIIA. Highest III; Lowest IIB. Highest II; Lowest IVC. Highest IV; Lowest IBrOHD. Highest I; Lowest III42. Which of the following is the mechanism for an SN2 reaction? HoBr+ BrA.CHODCHOOBronim+ BrB.C.D.bamos Brollo di bio anc+ BrdmaBrCN+ BrCNC10 A.H35. What is the hybridization, approximate bond angle and geometry of the N?A. sp², 120°, trigonal pyramidB. sp², 120°, trigonal planarC. sp³, 109.5%, tetrahedralD. sp³, 109.5%, trigonal pyramid36. Rank the indicated C-C bonds in increasing order of length, shortest first.HHHI IIIII IVB. III

41) The boiling point of a compound depends on its molecular weight, the strength of its…

Answered: 2.25 40. Which of the following…

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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Which of the following represent the reagents in the correct order for the synthesis of the target molecule? 1. CH3CI, ALC!3; 2. H2/Pd; 3. NBS, light А 1. CH;COCI, ALC!3; 2. Zn(Hg), HCl; 3. NBS, light В 1. CH3COCI, AlCl3; 2. Br2, FeBr C 3; 3. H2/Pd 1. CH3CH2CI, AlCl;; 2. Br2, FeBr3; 3. NBS, light Br 1) 2) 3)
7. Reaction Scheme. NH₂ NH2 or two differnet methods (no same steps/reagents) C5H12N2 1. xs Mel, xs K2CO3 2. Ag2O, H₂O 3. heat Br2, xs NaOH, xs H₂O OHC 1.03 2. DMS CHO
In each reaction box, place the best reagent and conditions from the list provided. 1) Br 2) 3) DEET (the active ingredient in over the counter insect repellant) 4) 5) Answer Bank Mg. Et,0 CH,CH,OH НСООСH, H,CO НСООН NH(CH,CH,),(2 equiv.) Br,, FeBrz CH,COOH HN(CH,CH,), (1 equiv.) NaNH, H,0+ CH,CH,NH, CO, CH,CH, Br SOC, NaCN
What step(s) will achieve the desired conversion of the SM to the P? A. 1. NaOMe, MeOH; 2. HIO4, 1,4-dioxane B. 1. H3O, H₂O; 2. HIO4, 1,4-dioxane C. O3 (g), CH2Cl2; then PPh3 D. Dess-Martin Periodinane SM Conditions x-
In each reaction box, place the best reagent and conditions from the list provided. 1) Br 2) 3) DEET 4) (the active ingredient in over the counter insect repellant) 5) Answer Bank SOCI, НСООCH, Br,, FeBr, H,0+ HN(CH,CH,), (1 equiv.) H,CO NH(CH,CH,),(2 equiv.) Mg. Et,0 NaCN CH,CH,NH, CH;CH, Br CO, NANH, НСООН CH,COOH CH,CH,OH
(8) Draw the principal organic product expected from the following reactions; indicate stereochemistry where appropriate. i. Br EIS Na ii. Mel iii. Br- CH, NaOH, CH,он iv. NaOH OH v. Mg, Et,0
19. Predict the product for the following reaction 20. Predict the product for the following reaction sequence. sequence. excess NH3 SOCI₂ 1. CH3CH₂MgBr 2. H3O+ _ ==>> A. B. C. D. IV E. OH Na₂Cr₂O7/H₂SO4/H₂O SOCI₂ V IV H || V HO NH₂ NH₂ ||| ABCDE A. B. D. E. IV I <<=== Br Mg/ether NHCH3 || excess SOCI₂ CH3NH2 1. CO2 2. H3O+ Pyridine NHCH3 NHCH3 V NHCH3 NH
Select an appropriate synthetic route of the diol shown starting with 1,1,3,3-tetramethyl-2-ethylcyclohexane. OH ОН + enantiomer 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. RCO3H; 10. H3O+ O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Pt; 9. OsO4, NMO; 10. NaHSO3, H₂O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. 1 equiv. NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. OsO4; 10. H3O+ O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. OsO4, NMO; 10. NaHSO3, H₂O O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H2, Pd; 9. RCO3H; 10. H3O+
18 of 21 60. Select the compound that is not an intermediate in the following organic transformation. ОН НО НО НО ОН ОН ОН А 61. When treated with 0.01 M HCI, molecule _will be protonated to the greatest extent while molecule will be protonated to the least extent. NH2 II IV || O=N* а. 1, I b. III, I C. III, II d. III, IV 62. Identify the mechanistic step in a Claisen condensation with the largest equilibrium constant value. a. initial proton transfer by ethoxide to yield the enolate ion b. nucleophilic attack of the enolate ion on the ester electrophile c. reformation of the carbonyl to promote heterolysis of the alkoxide leaving group d. proton transfer of the alkoxide on the newly formed beta keto ester substrate
ProVide the maJor Product for cach of the following reactiuns H more Than one 5 formed, Circk the product major Product 2. NBS, hy 1- Bra, FeBr3 2. H2504 -S03H T.Bra, FeBr3 Mg co) 3 CH2O 4. H307 workup (0) 2.
What is the MAJOR product of the following reaction sequence? 1) NaOEt, ELOH, heat 2а) ВН,; THF 2b) H2O2, NaOH CI ... + en .... В ... + en SE ... en OH
Provide the reagents necessary to carry out the following synthe sis но O- H- но но -H- HO- HO -H- но ČH2OH OH O- CH2OH ČH2OH 1. HCN 2. H2/Pd/BasO/H:0 1. NaBHa/H; O 2. CH;OH/HCI excess CH,1/Ag:O a. b. C. d. 1. NH;OH 2. acetic anhydride 3. NaOCH, e. 1. Bra/H20 2. NaBHa/H;0

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