Abstract
A concise and stereoselective total synthesis of (-)-hedycoropyran A was accomplished in a substrate-controlled manner from a readily available alkene. Highlights of the synthesis include a highly diastereoselective dehydrogenative cycloetherification to construct the trans-2-aryl-6-alkyl-3,6-dihydro-2H-pyran framework and late-stage substrate-controlled trans-dihydroxylation at C(3,4).
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