Predict the product for the following reaction sequence. excess OH Na2Cr2O7/H2SO4/H₂O PC13 NH3 H HO SOCI₂ NH₂ 1. CH3CH2MgBr 2. H₂O+ oh or of o A B C D

The following reaction should under go a(n) H₂C SN1 Br NaSPh DMF A/ reaction.

What reagents are needed to carry out the conversion shown? NH2 A OH C D NH2 O KOH; H2/Pt; excess CH31; Ag20, H2O; mCPBA; O NH3; H2/Pt; excess CH31; Ag2O, H2O; MCPBA O NH3; H2/Pt; Ag2O, H2O; MCPBA; NH3 O NAOH; excess CH31; mCPBA; NH3 O NH3; H2/Pt; excess CH31; Ag2O, H2O; MCPBA; NH3

In light of your answer to Problem 30-40, explain why a mixture of products occurs in the following reaction:

27. Which of the following is the best method for preparing CH3Br? A) CH3OH + Br- B) CH3OH + HBr C)CH3OH + Br2 D) CH3OH + NaBr E) CH3OH + Br+ 28. When 1-pentanol is heated with HCl/ZnCl2, 1-chloropentane is the major organic product. This reaction proceeds through an is produced as a byproduct. mechanism, and A) SN1, H2O B) SN2, H2O C) SN1, H2 D) SN2, H2 E) E2, H2 29. What is the major product of the following reaction? CH3 CH37 A. E. C CH 3 OH CH 37 CHCH3 + HBr CH 37 CH3Br II C CHCH3 CH 3 CH 3 CH 3 C CH2CH3 CH2Br CH3 Br heat B. -CH2CH2CH3 CH 37 CH3 -CH2CH2 CH3 Br C. CH 37 CH 3 C -CHCH 3 Br CH3 D.

27. Which of the following is the best method for preparing CH3Br? A) CH3OH + Br- B) CH3OH + HBr C)CH3OH + Br2 D) CH3OH + NaBr E) CH3OH + Br+ 28. When 1-pentanol is heated with HCl/ZnCl2, 1-chloropentane is the major organic product. This reaction proceeds through an is produced as a byproduct. mechanism, and A) SN1, H2O B) SN2, H2O C) SN1, H2 D) SN2, H2 E) E2, H2 29. What is the major product of the following reaction? CH3 CH37 A. E. C CH 3 OH CH 37 CH 37 CHCH3 + HBr CH 37 CH3Br | C -CHCH3 CH 3 CH 3 C--CH2CH3 CH2Br CH 3 Br heat B. -CH2CH2CH3 CH 37 CH3 C -CH2CH2 1 CH 3 Br C. CH 37 CH 3 C -CHCH 3 Br CH3 D.

Give the Reagents. KMN04 O 1) LIAIH4, 2) H3O+ O periodinane O 1) MgCI, 2) H3O+

owing reactions proceeds via an SN1 or SN2 of the reaction: (b) S2 pro85 39 Br tort atubong auonsV HMPAnoitutitadua

b. The following reaction occurs in pure sulfuric acid. Provide a reasonable mechanism oto C-OH H₂5oy Laat

12.Each of the following gives methylammonium chloride, CH3NH3+ CI, when hydrolyzed in aqueous acid solution except one. Which one? 0 A) NCH; ANCH₂ dal OBCHalstiuen bns noilspitinoqs8 8 priw ot ont to doirlw ablaiy woled nwore as eisteos Salubong beledal vilsoigolosi NHCH; NCH; O D))