Intramolecular Diels-Alder reactions of 4-vinylimidazoles

被引：45

作者：

He, Y ^{[1
]}

Chen, YZ ^{[1
]}

Wu, HY ^{[1
]}

Lovely, CJ ^{[1
]}

机构：

[1] Univ Texas, Dept Chem & Biochem, Arlington, TX 76019 USA

来源：

ORGANIC LETTERS | 2003年 / 5卷 / 20期

关键词：

D O I：

10.1021/ol0352862

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis of a variety of unsaturated ethers, esters, and amides derived from urocanic acid and their Diels-Alder reactions are reported. Propargylic ethers and esters cyclize with reasonable efficiencies, but the related mono- and unactivated olefins did not cyclize. On the other hand, the corresponding amines and amides, along with the doubly activated ester/amide derivatives participate in the cycloaddition reaction.

引用

页码：3623 / 3626

页数：4

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