Reactions - 2

Question 1

Hydrohalogenation

Answer 1

Alkene + HX —-> Haloalkane; Adds X and H; Markovnikov; Syn or anti

Question 2

Acid-Catalyzed Direct Hydration of Alkenes

Answer 2

Alkene + H2O –(acid)–> Alcohol; Markovnikov (OH more substituted)

Question 3

Bromination

Answer 3

Alkene + Br2 –(CCl4/ EtOH)–> Dihaloalkane; Anti addition of 2 Br; Bromonium intermediate

Question 4

Oxymercuration-Demercuration

Answer 4

Alkene –(Hg(OAc)2/THF, H2O // NaBH4, OH)–> Alcohol; More substituted alcohol

Question 5

Hydroboration-Oxidation

Answer 5

Alkene –(THF.BH3 // H2O2, OH)–> Alcohol; Less substituted alcohol

Question 6

Hydroxylation

Answer 6

Alkene + MnO4(-) –(OH, H2O)–> Diol + MnO2 OR Alkene + OsO4 –(NaHSO3, H2O)–> Diol + Os; Syn addition