ethers and epoxides (ch 13)- description to reagent Flashcards
installs alkyl group after deprotonation w base
RX
Mark H + OR
1) Hg(OAc)2, ROH, 2) NaBH4
diaklyl ether –> two alkyl halides via C-O bond cleavage. also will open epoxide ring and install halogen at more subs position
HX
oxidizing agent. alkene –> epoxide
MCPBA
oxidizing agent. alkene –> epoxide
RCO3H
alkene –> epoxide
1) Br2, H2O, 2) NaOH
Williamson ether synthesis (rxn w alkyl halide to form ether) or opens epoxide under basic conditions (alkoxide attacks less subs position)
RONa
opens epoxide ring
NaCN
grignard. reacts w epoxide in ring opening xn (attacks less subs)
RMgBr
reacts w epoxide to open ring (attacks less subs side)
LiAlH4
epoxide –> trans diol
(H+) H2O
epoxide opened. alcohol attacks protonated epoxide at more subs
(H+), ROH