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Chemistry Forums for Students => Organic Chemistry Forum => Organic Chemistry Forum for Graduate Students and Professionals => Topic started by: darkness1102 on October 30, 2009, 10:55:55 AM

Title: reduction?
Post by: darkness1102 on October 30, 2009, 10:55:55 AM

Can you tell me how the reaction occur ?Please explain !

Title: Re: reduction?
Post by: movies on October 31, 2009, 02:26:53 PM

It is almost certainly a radical mechanism.

Title: Re: reduction?
Post by: darkness1102 on October 31, 2009, 09:43:51 PM

But why, we have two NO₂ group !

Title: Re: reduction?
Post by: jinclean on October 31, 2009, 09:58:37 PM

This reaction is a radical reduction? what's the mechanism of it?
and the selective reduction can be accomplished by some interesting regent such as NaHS  with some hydroxylamine.See the org-syn coll vol 3 p82

Title: Re: reduction?
Post by: Heory on November 01, 2009, 12:06:12 AM

Yes, radical mechanism. In one textbook of my country, it is said that the NO2 group which is reducted fist still cann't be predicted up to now.

Title: Re: reduction?
Post by: movies on November 01, 2009, 04:45:35 PM

I don't have a good explanation for the selectivity in the reduction.

As for the mechanism, think of protonating the nitro group and then add an electron.  Repeat that a few times and you will get to the product.