Synthesis of Cyclopentenols and Cyclopentenones via Nickel-Catalyzed Reductive Cycloaddition

被引:58
|
作者
Jenkins, Aireal D. [1 ]
Herath, Ananda [1 ]
Song, Minsoo [1 ]
Montgomery, John [1 ]
机构
[1] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA
基金
美国国家科学基金会;
关键词
FACILE CONSTRUCTION; CYCLIZATION; ALLENES; ALKENES; ALKYNES; ESTERS; ENONES; INTERMEDIATE; ANNULATIONS; DERIVATIVES;
D O I
10.1021/ja206722t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Strategies for the reductive cycloaddition of enals or enoates with alkynes have been developed. The enal-alkyne cycloaddition directly affords cyclopentenols, whereas the enoate-alkyne cycloaddition affords the analogous cyclopentenones. The mechanism of these processes likely involves formation and protonation of a metallacyclic intermediate. The general strategy provides a straightforward entry to five-membered ring products from simple, stable pi-systems.
引用
收藏
页码:14460 / 14466
页数:7
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