1. Nov 20, 2004

### cuti_pie75

Hi,

It's been quite some time now i've spent on figuring out the mecanism of the oxydation of toluene with KMnO4 to give benzoic acid. My problem is i dunno how exactly the MnO4 attacks the hydrogen on the aliphatic chain. So, if anyone can help me figure out the first steps of which O on MnO4 will attack, that'll be great!

2. Nov 21, 2004

### chem_tr

Hello

In this process, either radicalic or cationic species form, as seen in a closely related reaction:

$$Ar_2CH_2+CrO_3\longrightarrow Ar_2C=O$$
$$rate~determining~step:Ar_2CH_2 \longrightarrow Ar_2CH \cdot ~or~Ar_2CH_2 \longrightarrow Ar_2CH^+$$