...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >New atropisomeric N-N ligands for CO/vinyl arene copolymerization reaction
【24h】

New atropisomeric N-N ligands for CO/vinyl arene copolymerization reaction

机译:用于CO /乙烯基芳烃共聚反应的新型阻转异构N-N配体

获取原文
获取原文并翻译 | 示例
           

摘要

New atropisomeric bidentate bipyridine-based ligands (3,3'-(ethylenedioxy)-2,2'-bipyridine 3; 3,3'-(propylenedioxy)2,2'-bipyridine 4; 3,3'-(butylenedioxy)-2,2'-bipyridine 5) containing a bridge between the 3,3' positions of the aromatic rings have been prepared. Together with the previously reported analogous ligands ((R)-3,3'-(1-methylethylenedioxy)-2,2'-bipyridine) 1 and (( S, S)-3,3'-(1,2-dimethylethylenedioxy)2,2'- bipyridine) 2, they were used to synthesize the corresponding bis-chelated dicationic complexes [Pd(N-N)(2)][PF6](2). Crystal structures and comparison of the data obtained by X-ray analysis on four of these complexes is reported. These palladium compounds were used as precatalysts in the CO/styrene and CO/4-Me-styrene copolymerization reactions, where they showed that small variations in the ligand backbone remarkably affects the productivity of the catalytic system.
机译:新的阻转异构的双齿双联吡啶基配体(3,3'-(乙二氧基)-2,2'-联吡啶3; 3,3'-(丙二氧基)2,2'-联吡啶4; 3,3'-(丁二氧基)-已经制备了在芳族环的3,3′位置之间包含桥的2,2′-联吡啶5)。与先前报道的类似配体((R)-3,3'-(1-甲基乙二氧基)-2,2'-联吡啶)1和((S,S)-3,3'-(1,2-二甲基乙二氧基) )2,2'-联吡啶)2,它们被用来合成相应的双螯合双键双键复合物[Pd(NN)(2)] [PF6](2)。报告了其中四个复合物的晶体结构和通过X射线分析获得的数据的比较。这些钯化合物在CO /苯乙烯和CO / 4-Me-苯乙烯共聚反应中用作预催化剂,它们显示出配体主链的微小变化会显着影响催化体系的生产率。

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