4. When heated, 1,2-dibromoalkanes can undergo reactions like the one shown belo

Question

4. When heated, 1,2-dibromoalkanes can undergo reactions like the one shown below.

a.What term describes the stereochemical relationship between reactant and product in the reaction above?

b. assuming Keq=1, what term describes the mixture at equilibrium?

C. write/suggest the mechanism for the reaction below

5. Suggest a mechanism for the reaction shown below. use curved, double-headed arrows to show electron movement.

plz help and explanations would be so great too

4. (6 pts) When heated, 1,2-dibromoalkanes can undergo reactions like the one shown below. Br, Br Br What term describes the stereochemical relationship between reactant and product in the reaction above? a. b. Assuming that Ke 1, what term describes the mixture at equilibrium? Suggest a mechanism that explains how it is possible to get from reactant to product (Hint: your mechanism should involve a bromonium ion intermediate) c. 5. (4 pts) Suggest a mechanism for the reaction shown below. Use curved, double-headed arrows to show electron movement. (Hint: the mechanism involves a protonation, carbocation formation, alkene addition, and elimination) H2SO4 heat ??

Explanation / Answer

(a)

These two compounds are enantiomers i.e. they are mirror images of each other that are non-superposable (not identical).

(b)

if Keq =1, it will form a racemic mixture (1:1 mixture of each enantiomer).

(c)

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