Addition Reactions

Question 1

What is hydrohalogenation?
And what are the reagents?

Answer 1

Reacting an alkene with H-X. WATXH FOR SHIFTS

Question 2

What type is hydrohalogenation? Mark or anti mark? Rearrangements ?

Answer 2

Markovnikov WITH REARANGEMENTS

Question 3

What happens if you react HBR with peroxides (ROOR) ?

Answer 3

Antimarkovnikov addition of the H and Br

Question 4

Acid Catalyzed hydration: describe and list the reagents

Answer 4

When an alkene reacts with water and a strong acid or ( for short) H3O+ to form an OH product

Question 5

Acid cat hydration: type and rearrangement?

Answer 5

Markovnikov and yes rearrangement

Question 6

Acid cat dehydration: describe and reagents

Answer 6

AlkanOL reacts with a strong acid to form an alkene via E2

Question 7

Oxymercuration Demurcuration type and reagents

Answer 7

Alkene reacts with 1) Hg(OAC)2, H20 and 2) NaBH4 to form a OR or OH product

Question 8

Oxymercuration demurcuration type and rearrangements

Answer 8

The most substituted OH or OR so markovnikov but NO REARRANGEMENTS

Question 9

Hydroboration Oxidation describe and reagents

Answer 9

Alkene reacts with 1) BH3, THF 2)NaOH,H2O2 to form an OR or OH product . The first reagent could also be 1)B2H6 or BH3

Question 10

Is Oxymercuration anti or syn

Answer 10

Anti

Question 11

Is hydroboration oxidation anti or syn

Answer 11

Syn

Question 12

Bromination

Answer 12

When Br2 reacts with CCL4 and an alkene with product of two Brs across the old double bond

Question 13

Is bromination anti or syn and why?

Answer 13

Anti because of Bromonium ion

Question 14

Halohydrin type and reagents

Answer 14

When an alkene reacts with BR2 and H20 or ROH to form a product with a Br and OH/OR group across the old double bond

Question 15

Is halohydrin formation anti or syn and why

Answer 15

Anti because bromonium ion intermediate

Question 16

Catalytic hydrogenation

Answer 16

When an alkene reacts with H2 and some catalyst like Pd, Pt, or Ni to produce a product with no double bond and the H’ across it

Question 17

Is catalytic hydrogenation anti or syn

Answer 17

Syn

Question 18

Epoxidation

Answer 18

Alkene to an epoxied group via RCO3H

Question 19

Epoxidation is anti or syn

Answer 19

Syn

Question 20

Syn dihydroxylation

Answer 20

An alkene reacts with KMnO4 or OsO4 to replace the old double bond with two alcohol

Question 21

Syn dihydroxylation anti or syn?

Answer 21

Syn obvs

Question 22

Ozonolysis

Answer 22

Alkene reacts with 1) O3 and 2) Zn, h2O and breaks the bond in half and smushes 2 Os in