首页> 外文期刊>Chemistry: A European journal >Selective Synthesis and Reactivity of eta5-Arylcyclohexadienyliron Complexes
【24h】

Selective Synthesis and Reactivity of eta5-Arylcyclohexadienyliron Complexes

机译:eta5-芳基环己二烯基铁配合物的选择性合成和反应活性

获取原文
获取原文并翻译 | 示例
           

摘要

A series of aryl-substituted cyclohexadienyliron complexes have been prepared by a general procedure that determines regioselectivity by cor rectly positioning leaving groups in the precursor complexes.The aryl groups at 1-C or 2-C have been shown to be omega directing by the study of reactions with a representative range of nucleophiles,and these regioselectivity properties have been related to the spectroscopic properties of the cationic cyclohexadie nyliron complexes.A high level of elec tron-donating substituents on the arene,or switching between the [Fe(CO)3]and[Fe(CO)2PPh3]series,reduces the minor ipso pathway,im proving regiocontrol.Placing opposed directing groups in the arylcyclohexa-dienyliron complexes reverts reactivity to the ipso pathway with stabilised eno-late nucleophiles.and when the addi tional directing group reinforces the effect of the aryl group,the ipso path way is stopped.
机译:通过常规方法制备了一系列芳基取代的环己二烯基铁配合物,该方法通过正确定位前体配合物中的离去基团来确定区域选择性。研究表明1-C或2-C上的芳基是ω-方向的具有代表性范围的亲核试剂的反应,这些区域选择性特性与阳离子环己二烯基铁配合物的光谱特性有关。 ]和[Fe(CO)2PPh3]系列,减少了次要的ipso途径,从而证明了对区域的控制。在芳基环己二烯基铁络合物中放置相反的导向基团可以使反应性与稳定的烯醇式亲核试剂还原为ipso途径。基团增强了芳基的作用,停止了ipso路径。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号