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芳基氯作为亲电试剂在 Pd 催化的烯烃双官能团化反应中的应用。

Use of aryl chlorides as electrophiles in Pd-catalyzed alkene difunctionalization reactions.

机构信息

Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA.

出版信息

J Org Chem. 2010 Apr 16;75(8):2756-9. doi: 10.1021/jo100344k.

Abstract

The development of conditions that allow use of inexpensive aryl chlorides as electrophiles in Pd-catalyzed alkene carboamination and carboetherification reactions is described. A catalyst composed of Pd(OAc)(2) and S-Phos minimizes N-arylation of the substrate and prevents formation of mixtures of regioisomeric products. A number of heterocycles, including pyrrolidines, isoxazolidines, tetrahydrofurans, and pyrazolidines, are efficiently generated with this method.

摘要

描述了一种条件的发展,该条件允许在 Pd 催化的烯属碳氨化和碳醚化反应中使用廉价的芳基氯作为亲电试剂。由 Pd(OAc)(2)和 S-Phos 组成的催化剂最大限度地减少了底物的 N-芳基化,并防止了区域异构产物混合物的形成。该方法可有效地生成多种杂环化合物,包括吡咯烷、异噁唑烷、四氢呋喃和吡唑烷。

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