ORGANIC SYNTHESIS
Compound A have the following characteristics:
molecular formula $C_{4}H_{7}Br$; only two signals in protonic NMR spectrum,
one of them near 6.0 ppm; in the infrared spectrum, there are two medium bands, one at 1670 cm-1 and another near 815 cm-1.
In a synthesis of compound E, the following sequence of reactions was used, starting from A:$A + Mg/THF \to B$
$B + 2,2 - dimethyloxirane\longrightarrow C$
$C + Hg(OAc)_{2}\, (anhydrous)\longrightarrow D$
$D + NaBH_{4}\longrightarrow E$
Find the structures of compounds A through E.
By Carcul
