Naturalproductman’s Blog

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Archive for the ‘Osmium’ Category

Aminohydroxylation of alkenes

Posted by naturalproductman on September 28, 2011

Timothy Donohoe and co-workers at the University of Oxford have reported in ACIEE on an intermolecular aminohydroxylation reaction of alkenes using an osmium catalyst.

aminohydroxylation

ACIEE paper

Posted in Cascade Reactions, Methodology, Osmium, Transition Metal | Leave a Comment »

Osmium Catalyzed Oxidative Cyclization

Posted by naturalproductman on September 7, 2010

Timothy Donohoe and co-workers at the University of Oxford have published in Synlett on an osmium catalyzed oxidative cyclization of a vinyl silane tethered with an alcohol to form substituted tetrahydrofurans.

oxidative cyclization

Synlett paper

Posted in Cascade Reactions, Methodology, Osmium, Tetrahydrofuran, Transition Metal | Leave a Comment »

Osmium Catalyzed Hydroalkoxylation

Posted by naturalproductman on May 7, 2010

With all of the hype of the typical transition metals for hydryalkoxylation reactions such as platinum, gold, and silver, people seem to forget about the other transition metals.  Carlos Saa and co-workers from Universidad de Santiago de Compostela in Spain have recently reported in ACIEE on an osmium catalyzed hydroalkoxylation reaction to lead to benzoxepine structures.

osmium


ACIEE paper

Posted in Cascade Reactions, Methodology, Osmium, Ring forming, Transition Metal | Leave a Comment »

 
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