Deck 14: Organometallic Compounds

Question 1

Which one of the following would not be a suitable solvent for Grignard reagents?

A)
B)
C)
D) they would all be suitable solvents.

Answer 1

Question 2

What is the major product of the following reaction?

A) 2-ethyl-1-pentanol
B) 2-ethyl-1-butanol
C) 3-pentanol
D) 3-methyl-1-pentanol

Answer 2

2-ethyl-1-butanol

Question 3

The reaction of excess Grignard reagent with an ester of formic acid, $\mathrm{HCO}_{2} \mathrm{R}$ , gives

A) a primary alcohol.
B) a secondary alcohol.
C) a tertiary alcohol.
D) methanol.

Answer 3

a secondary alcohol.

Question 4

Which of the following pairs of reagents would you use to prepare 4-methyl-2-pentanol?

A) A
B) B
C) C
D) D

Question 5

What is the product of the following reactions?

A) A
B) B
C) C
D) D

Question 6

The reaction of 4-methylcyclohexanone with $\mathrm{CH}_{3} \mathrm{MgBr}$ followed by neutralization gives two alcohols. These two alcohols are

A) constitutional isomers.
B) enantiomers formed in equal amounts.
C) enantiomers formed in unequal amounts.
D) diastereomers.

Question 7

What is the product of the following reaction?

A)

B)

C)

D)

Question 8

Consider the two syntheses of the compound shown below. Which method would work best with minimal by-products?

A) Method I
B) Method II
C) Both methods would work.
D) Neither method would work.

Question 9

What is the product of the following reaction?

A)

B)

C)

D)

Question 10

The reaction of a Grignard reagent with a ketone followed by dilute acid gives a(n)

A) primary alcohol.
B) secondary alcohol.
C) tertiary alcohol.
D) ester.

Question 11

What is the product of the following reaction sequence?

A) 3-chloro-4-heptanol
B) 3-heptene
C) 3-chloroheptane
D) 4-chloroheptane

Question 12

How many stereoisomers are formed in this reaction?

A) just one
B) two
C) three
D) four

Question 13

What organic product would result from this reaction?

A)

B)

C)

D)