Synthesis

1067. Choose the reagent that would be best for these reactions.

A. CH₃CH₂F

B. CH₃CH₂Br

C. CH₃CH₂C l

D. CH₃CH₂I

1068. Which reagents would not give the correct products for these reactions?

a.

A. Ag₂O, NH₄OH

B. MeOH, HCl

C. CrO₃, H₂SO₄

b.

A. 1. K₂Cr₂O₇, 2. H₂SO₄, H₂O

B. CrO₃, H₂SO₄

C. H₂O

1069. Which reagents would give the right products for these reactions?

a.

A.

B. 1. , 2. Zn(Hg), HC l

C.

b.

A.

B. 1. , 2. Zn(Hg), HC l

C.

1070. Which reagents give the appropriate products for these reactions?

a.

A. H₂O

B. Hg(OAc)₂ , NaBH₄

C. H₃O⁺ , Hg(OAc)₂

D. 1. BH₃, 2. NaOH, H₂O₂

b.

A. 1. BH₃, 2. NaOH, H₂O₂

B. Hg(OAc)₂, NaBH₄

C. HgSO₄, H₃O⁺

D. H₃O⁺, Hg(OAc)₂

1126. Which of the following does NOT convert an alcohol into a good leaving group for a substitution reaction?

A. PBr₃

B. HBr

C. Na

D. SOCl₂

1127. A phase transfer catalyst is effective because

A. it dissolves one of the reagents

B. it dissolves both of the reagents

C. it dissolves in two immiscible solvents

D. it brings an ion into a nonpolar solvent

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