Identify possible electrophiles:
$OH^-$ | no, charge - |
$HNO_3$ | yes, liberates H+ with an electron gap |
$H_2CO$ | yes, carbon with δ+ |
$NH_3$ | no, no electron gap, nor δ+ on N |
$H\cdot$ | no, uncoupled $e^-$ , no electron gap |
$AlCl_3$ | yes, electron gap on Al |
$Br^+$ | yes, charge + and electron gap on Br |
$C_6H_6$ (benzène) | no, π electrons, no electron gap |
$RC^+HOH$ | yes, electron gap and + charge on C |
$CH_3CH_2^+$ | yes, electron gap and + charge on C |
Identify possible nucleophilic centers:
$CH_2=CH_2$ | yes, π electrons; = electron pair disponibility |
$NH_2^-$ | yes, - charge and electron pair on N |
$H_3O^+$ | no, + charge |
$CH_3Li$ | yes, because $Li^+ \; CH_3^-$ and $CH_3^-$ has an electron pair on $C$ and - charge |
$O_2^{2-}$ | yes , because - on both $O$ |
$C_6H_6$ (benzène) | yes for C, because π cloud = 3 available electron pairs |
Click on the species represented to know whether or not they can be electrophiles!
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