Catalytic Enantioselective Synthesis Of Benzocyclobutenols And Cyclobutanols Via A Sequential Reduction/C-H Functionalization
CHEMICAL SCIENCE(2021)
摘要
We report here a sequential enantioselective reduction/C-H functionalization to install contiguous stereogenic carbon centers of benzocyclobutenols and cyclobutanols. This strategy features a practical enantioselective reduction of a ketone and a diastereospecific iridium-catalyzed C-H silylation. Further transformations have been explored, including controllable regioselective ring-opening reactions. In addition, this strategy has been utilized for the synthesis of three natural products, phyllostoxin (proposed structure), grandisol and fragranol.
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