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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Marie_Curie on May 25, 2005, 01:11:30 AM

Title: Desulfurization of C-S to C-H bond using Raney-Nickel
Post by: Marie_Curie on May 25, 2005, 01:11:30 AM

Hello everybody,

Would you please help me out with a mechanism question.
The mechanism I am talking about is reducing a C-S bond to C-H using Raney-Ni as a catalyst in a hydrogen atmosphere.  I know that the mechanism could be radicalic and I suspect that hydrogen is adsorbed onto the catalyst surface the same way H2 does in the case of hydrogenation of the alkenes.
I would greatly apprecaite if you could give me more details about this mechanism.
Thank you in advance for your help.
Have a great evening!

Sincerely,
Marie

Title: Re:Desulfurization of C-S to C-H bond using Raney-Nickel
Post by: movies on May 25, 2005, 01:20:25 PM

The exact mechanism isn't known, but it is likely that it is a free radical mechanism.

Title: Re:Desulfurization of C-S to C-H bond using Raney-Nickel
Post by: Marie_Curie on May 26, 2005, 12:57:38 AM

Thank you so much for your prompt answer, I really appreciate it.
Marie