Use of the p-Tolylsulfinyl Group as a Chiral Inductor in Stereoselective [4 + 3] Cycloaddition Reactions: Preparation of Enantiopure Polysubstituted 8-Oxabicyclo[3.2.1]oct-6-en-3-one Systems Having up to Five Stereocenters.

2015

Several 8-oxabicyclo[3.2.1]oct-6-en-3-ones are prepared by cycloaddition reaction of chiral furanes such as (I) and (VII) with dibromoketone (II).

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