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Topic: Radical mechanism  (Read 2609 times)

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Offline clark26

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Radical mechanism
« on: January 21, 2012, 04:18:33 PM »
Hi.

I have a question. If you mix Mn(III), boronic acid and phenanthridine you get the phenyl group put into phenanthridine next to nitrogen. It's supposed to be a single electron radical oxidative coupling. Anyone who can explain the mechanism?  :)

I'm thinking something like Mn(III) making the radical and the radical attacks at the electron deficient position next to nitrogen?

Offline Honclbrif

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Re: Radical mechanism
« Reply #1 on: January 25, 2012, 11:28:30 AM »
Hi.

I have a question. If you mix Mn(III), boronic acid and phenanthridine you get the phenyl group put into phenanthridine next to nitrogen. It's supposed to be a single electron radical oxidative coupling. Anyone who can explain the mechanism?  :)

I'm thinking something like Mn(III) making the radical and the radical attacks at the electron deficient position next to nitrogen?

Is it only Mn, B(OH)3 and phenanthridine, or is there something else in there which could be donating a phenyl group?
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