M3: L-7

Question 1

Explain the mechanism of an SN1 substitution reaction:

Answer 1

The electrophile leaves first (slow step) and then the neutrophile attacks the carbonation( reaction intermediate) (fast step)

Question 2

In an SN2 substitution reaction with an R molecule, what could be the stereochemistry of the product?

Answer 2

S

Question 3

In an SN1 substitution reaction with and R molecule, what could be the stereochemistry of the product?

Answer 3

S or R

Question 4

What reaction mechanism would a substitution reaction with a methyl molecule normally use?

Answer 4

SN2

Question 5

What reaction mechanism would a substitution reaction with a primary haloalkane normally use?

Answer 5

SN2

Question 6

What reaction mechanism would a substitution reaction with a secondary haloalkane normally use?

Answer 6

SN1 or SN2

Question 7

What reaction mechanism would a substitution reaction with a tertiary haloalkane normally use?

Answer 7

SN1