Abstract
A practical methodology for the synthesis of J-type prostaglandins has been developed starting from the well-consolidated approaches established for the synthesis of A-type prostaglandins. An efficient 1,3-allylic transposition of the C-9 hydroxyl group of intermediate 4 furnished the advanced precursor 5 for J(2) synthesis. Our optimized A-J swap protocol employed selenium chemistry, involving the [2,3] sigmatropic rearrangement of secondary allylic selenoxide 11a.
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