Regio- and stereoselective iodoacyloxylations of alkynes
Daniel L Priebbenow1, Robert W Gable2, Jonathan Baell1
1†Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
Abstract:
A new method for the regioselective and stereoselective iodoacyloxylation of alkynes has been developed. This protocol utilizes a combination of an iodobenzene dicarboxylate and iodine to functionalize a series of activated and unactivated alkynes in an entirely selective and predictable fashion. The resultant iodo-enol esters were subsequently coupled with boronic acids to afford tetrasubstituted alkene derivatives, which could be further converted to the corresponding 1,1-disubstituted acetophenone.
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