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Natural Science Forum / Chemistry / Organic Synthesis / March 2005Help protecting double bonds
How can I protect double bonds during a Hydrogenolysis with H2 and Pd/C? Not really a protection strategy, but bromination a elimination might help? G. Borioni schrieb: > How can I protect double bonds during a Hydrogenolysis with H2 and Pd/C? > How can I protect double bonds during a Hydrogenolysis with H2 and > Pd/C? Poison the catalyst. Use low (atmosphereic) pressure. Use low temperature. Probably more depends on what else you are reducing. Maybe try an alternative redcution process?  Signature-- Ron Jones Don't repeat history, see unreported near misses in chemical lab/plant at http://www.crhf.org.uk Not really a protection strategy, but bromination a elimination might help? G. Borioni schrieb: > How can I protect double bonds during a Hydrogenolysis with H2 and Pd/C? > How can I protect double bonds during a Hydrogenolysis with H2 and > Pd/C? Couple of ideas... http://tinyurl.com/4dagw or http://tinyurl.com/6ampc What are you planning on reducing with the hydrogenation - there may be other (electro)chemical methods of doing it that won't require the protect / deprotect pair of reactions. Stephan -- Stephan Bird MChem(Hons) AMRSC stephan.j.bird@mad.scientist.comREMOVE "Chance favours the prepared mind" Louis Pasteur |
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