Alkene Reactions

Question 1

hydro-halogenation: reagents

Answer 1

H-X

Question 2

hydro-halogenation: stereoselectivity

Answer 2

none

Question 3

hydro-halogenation: intermediate and rearrangement

Answer 3

C+, yes it can be rearranged

Question 4

hydro-halogenation: regioselectivity

Answer 4

Markovnikov

Question 5

hydration: reagents

Answer 5

H2O mixes with strong acid

• H2SO4

Question 6

hydration: stereoselectivity

Answer 6

none, yes syn and anti

Question 7

hydration: intermediate and rearrangement

Answer 7

C+, yes it can be rearranged

Question 8

hydration: regioselectivity

Answer 8

Markovnikov

Question 9

halogenenation: reagent

Answer 9

X2

• Br2

Question 10

halogenenation: regio-selectivity

Answer 10

symmetrical, but nucleophile Br- adds to more substituted C

Question 11

halogenenation: sterioselectivity

Answer 11

anti

Question 12

halogenenation: intermediate and rearrangment

Answer 12

bromonium, no rearrangment

Question 13

halohydrin formation: reagent

Answer 13

Br2

=====>

H2O

Question 14

halogenenation: regioselectivity

Answer 14

Br adds to less substituted C, OH adds to more substituted C

Question 15

halogenenation: stereoselectivity

Answer 15

anti

Question 16

halogenenation: intermediate anss rearrangement

Answer 16

Bromonium, no rearrangment

Question 17

borohydride hydration: reagent

Answer 17

BH3

=====>

H2O

Question 18

borohydride hydration: regioselectivity

Answer 18

Anti- Markovnikov

Question 19

borohydride hydration: stereoselectivity

Answer 19

Syn

Question 20

borohydride hydration: intermediate and rearrangment

Answer 20

Dont need to know, no rearrangment

Question 21

hydrogenation: reagents

Answer 21

H2

=====>

Pd/C

Question 22

borohydride hydration: regioselectivity

Answer 22

symetrical reagent

Question 23

borohydride hydration: stereoselectivity

Answer 23

Syn

Question 24

borohydride hydration: intermediate and rearrangement