chapter 14

Question 1

antimarkovnikov addition of one halogen to allylic compound

Answer 1

NBS+hv Ccl4 = Br•

Question 2

OH addition as antimarkovnikov

Answer 2

poor nucleophile and H20

poor nucleophile : H20

Question 3

antimarkovnikov addition of nucleophile

Answer 3

good nucleophile

ex: NaI NaCN

Question 4

addition of a halogen

high temp vs low temp

Answer 4

HX

high temp results in thermodynamic product ( most substituted double bond)

low temp results in kinetic product ( halogen attaches to most stable carbocation)

Question 5

addition of a halogen to a ______ results in the same thermodynamic and kinetic product

Answer 5

symmetric molecule

Question 6

addition of two halogens

high vs low temp

Answer 6

X2

high temp results in thermodynamic product ( most substituted double bond)

low temp results in kinetic product ( halogen attaches to most stable carbocation)

Question 7

woodwork Hoffman rule for conrotary

Answer 7

conrotary : carbon rotate towards same direction

4n with heat
4n+2 with light

Question 8

woodwork Hoffman rule for disconrotary

Answer 8

disconrotary
4n with light
4n+2 with heat