Reactions with Alkenes

Question 1

formation of an alkene from a halogen

Answer 1

strong base

Question 2

C=C——–X

Answer 2

HX, adds markovnikov

Question 3

C=C——X,X

Answer 3

X2, Anti

Question 4

C=C——X2,OH

Answer 4

X2,H2O, markovnikov, anti

Question 5

C=C——X, OR

Answer 5

X2, ROH, markovnikov, anti

Question 6

C=C——OH

Answer 6

H2O,H2SO4……Hg(OAc)2,H2O and NaBH4…….BH3 and NaOH, H2O2

BH3=non-mark.

Question 7

C=C——OH,OH

Answer 7

KMnO4,NaOH,H2O……….OsO4 and NaHSO3,H2O

Question 8

C=C—C=O(oxidative cleavage)

Answer 8

O3 and Zn, H3O+……..KMnO4,H2O or H3O+

Question 9

Alkene to Alkane

Answer 9

H2, Pd/C

Question 10

C=C—–cyclopropane

Answer 10

CH2N2…..CHCl3,KOH……CH2I2,Zn(Cu)

Question 11

Formation of an Alkene from an alcohol

Answer 11

H2SO4 or H3PO4 and heat