16. Major product formed in the following reaction sequence is:
GATE 2020
(i) Li/liq. NH$_3$, t-BuOH
(ii) O$_3$(1 eq), MeOH, Me$_2$S
Sol.
3. Major product formed in the following transformation is
GATE 2020
Sol.
EPOXIDATION OF ALKENES
• Epoxide / oxirane: a three-membered cyclic ether.
alkene
peroxyacid
epoxide (oxirane)
acid
• Examples of epoxidizing reagent:
peroxyacetic acid
peroxybenzoic acid
(PhCO$_3$H)
m-chloroperoxybenzoic acid
(MCPBA)
Examples:
MCPBA
CH$_2$Cl$_2$, 25°C
cyclohexene
1,2-epoxycyclohexane