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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