2,3-二芳基取代的马来酰亚胺缀合马来酰亚胺的聚合物的模型化合物[聚(RMI- ALT -Ar)和聚(RMI-共-Ar)由2,3-二溴合成ñ -取代的马来酰亚胺(DBrRMI) R =使用钯催化剂的环己基(DBrCHMI)和正己基(DBrHMI)]和芳基硼酸。为了阐明主链上含有马来酰亚胺单元的共轭聚合物的结构,将2-芳基或2,3-二芳基取代的马来酰亚胺的13 C NMR光谱与N进行了比较。预取代的马来酰亚胺聚合物。用DBrRMI通过Suzuki-Miyaura交叉偶联聚合或Yamamoto偶联聚合获得的共聚物在末端为脱卤结构。这种脱卤作用可能会导致DBrRMI的低聚合性。另一方面,π共轭化合物在普通有机溶剂中显示出高溶解度。马来酰亚胺的N-取代基不能显着影响2,3-二芳基取代的马来酰亚胺衍生物的光致发光光谱。聚(RMI- alt- Ar)和聚(RMI- co- Ar)的荧光光谱随N的变化而
A mild synthesis of N-functionalised bromomaleimides, thiomaleimides and bromopyridazinediones
作者:Lourdes Castañeda、Zoë V.F. Wright、Cristina Marculescu、Trang M. Tran、Vijay Chudasama、Antoine Maruani、Elizabeth A. Hull、João P.M. Nunes、Richard J. Fitzmaurice、Mark E.B. Smith、Lyn H. Jones、Stephen Caddick、James R. Baker
DOI:10.1016/j.tetlet.2013.04.088
日期:2013.7
Bromomaleimides are useful building blocks in synthesis and powerful reagents for the selective chemical modification of proteins. A mild new synthesis of these reagents is described, along with the convenient transferability of the approach to dithiomaleimides and bromopyridazinediones. (c) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.