Manganese(III)-Promoted Tandem Oxidation and Cyclization of β-Keto Ester Derivatives of Terpenoids

被引:18
作者
Li, Zhilong [1 ,2 ]
Jung, Heejung [2 ]
Park, Mira [3 ]
Lah, Myoung Soo [4 ]
Koo, Sangho [1 ,2 ]
机构
[1] E China Univ Sci & Technol, Sch Pharm, Shanghai 20037, Peoples R China
[2] Myong Ji Univ, Dept Nano Sci & Engn, Dept Chem, Yongin 449728, Kyunggi Do, South Korea
[3] Hanyang Univ, Dept Chem & Appl Chem, Ansan 426791, Kyunggi Do, South Korea
[4] Ulsan Natl Inst Sci & Technol, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea
关键词
cyclization; cycloaddition; manganese; oxidation; radical reactions; terpenoids; DIELS-ALDER REACTIONS; STRAIGHTFORWARD SYNTHESIS; RADICAL CYCLIZATIONS; METAL-SALTS; MECHANISMS;
D O I
10.1002/adsc.201100215
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A new type of terpenoid cyclization directed by a beta-keto ester moiety has been developed, which proceeded by manganese(III)-initiated oxidation of the beta-keto ester, followed by an intramolecular hetero Diels-Alder reaction with the terpenoid chain. This reaction produces polycyclic dihydropyrans in high yields and stereoselectivities under mild conditions.
引用
收藏
页码:1913 / 1917
页数:5
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