Convergent, enantioselective synthesis of the novel furanoditerpene (+)-taonianone through facially selective chiral olefin–ketene [2+2] cycloaddition

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Alice Kanazawa, Philippe Delair, Mehrnaz Pourashraf and Andrew E. Greene


Abstract

(+)-Taonianone, an unusual diterpene from the brown alga Taonia australasica, has been enantioselectively prepared through [2+2] cycloaddition of chloromethylketene with a chiral enol ether.


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