Total synthesis of linoxepin facilitated by a Ni-catalyzed tandem reductive cyclization

被引:10
|
作者
Cao, Jing-Si [1 ]
Zeng, Jing [1 ]
Xiao, Jian [1 ]
Wang, Xiao-Han [2 ]
Wang, Ya-Wen [1 ]
Peng, Yu [1 ]
机构
[1] Southwest Jiaotong Univ, Sichuan Engn Res Ctr Biomimet Synth Nat Drugs, Sch Life Sci & Engn, Chengdu 610031, Peoples R China
[2] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
基金
中国国家自然科学基金;
关键词
UNACTIVATED ALKYL BROMIDES; COUPLING REACTIONS; ROOM-TEMPERATURE; ARYL IODIDES; LIGNAN; MECHANISMS; ALKENES; BIOLOGY; HALIDES; CORE;
D O I
10.1039/d2cc02221d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A nickel-catalyzed reductive cyclization was developed to construct the tricyclic core embedded in linoxepin, a cyclolignan with a unique benzoxepin ring. The generated diastereodivergent acetals could be converted to the common unsaturated lactone, thus allowing a racemic synthesis of this molecule after incorporation of the remaining aromatic ring. This strategy with a late-stage installation of the D-ring led to the facile production of several linoxepin analogs as well.
引用
收藏
页码:7273 / 7276
页数:4
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