Abstract
Tf2NH-mediated regio- and diastereoselective skeletal metamorphosis of 1-alkynyl-2,3-diaryl-2-methoxycarbonylcyclopropyl ketones readily gave 2,3,4,5-tetraaryl-2,3-dihydrofurans. Controllable reduction and removal of the ester group then precisely afforded four types of the eight possible tetrahydrofuran (THF) diastereomers with four different (hetero)aryl substituents. Further, deuterium-labeling results revealed an unprecedented hydrogen transfer from the formyl C-H bond in tBuOK-promoted decarbonylation under tBuOH-free conditions.
| Original language | English |
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| Journal | Organic Letters |
| DOIs | |
| State | Accepted/In press - 2025 |