Natural products inspired [3 + 2] cycloaddition enables efficient construction of hydroxylated tetrahydrofuran acetals and concise syntheses of lignans

Dong-Yue Cai, Weiming Shi, Zhao-Hui Jin,Zhi-Xiang Yu,Jin-Xin Zhao,Jian-Min Yue

Science China Chemistry(2024)

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Abstract
Mimicking biosynthetic pathways of hongkonoids led to the development of a new Cu(I)-catalyzed [3 + 2] cycloaddition of α-hydroxyketone and β-keto enol ethers, affording tetrahydrofuran acetals in a highly diastereoselective manner and 100
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Key words
[3 + 2] cycloaddition,transition-metal catalysis,tetrahydrofuran,lignans,natural products
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