Intramolecular Ni-catalyzed reductive coupling enables enantiodivergent synthesis of linoxepin
Literature Information
Zi-Hao Liu, Jian Xiao, Qian-Qian Zhai, Xi Tang, Li-Jun Xu, Zhi-Yuan Zhuang, Ya-Wen Wang, Yu Peng
A nickel-catalyzed reductive tandem cyclization of the elaborated β-bromo acetal with a dibenzoxepin scaffold was invented to strategically construct the remaining two rings in linoxepin. The generated diasterodivergent intermediates could be easily converted to both enantiomers of this unique cyclolignan molecule via facile oxidations, thus realizing enantiodivergent total synthesis of linoxepin for the first time.
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