SYNTHESIS AND CHARACTERIZATION OF MULTIPLE PHENYLETHYNYLBENZENES VIA CROSS-COUPLING WITH ACTIVATED PALLADIUM CATALYST

被引：35

作者：

JONES, KM

KELLER, TM

机构：

[1] Naval Research Laboratory, Materials Chemistry Branch, Washington, DC 20375-5320

来源：

POLYMER | 1995年 / 36卷 / 01期

关键词：

CROSS-COUPLING; PHENYLETHYNYL; ACTIVATED PALLADIUM;

D O I：

10.1016/0032-3861(95)90691-T

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Several compounds containing multiple phenylethynyl substituents were prepared and polymerized to thermosets through the acetylenic units. Pyrolysis of the polymers afforded high carbon yields. The acetylenic-based compounds were synthesized from the palladium-catalysed coupling reaction of phenylacetylene with multiple-brominated benzenes. Inconsistencies were observed in the reaction yields with time, which were attributed to poisoning of the palladium. A procedure was developed for the activation of palladium using magnesium. The activated palladium gave consistent high yield of cross-coupled products.

引用

页码：187 / 192

页数：6

共 19 条

[1] AROMATIC POLYETHER, AROMATIC KETONE, AROMATIC SULFONES AS LAMINATING RESINS .12. DERIVATIVES OF 2,2'-DIPHENYLETHYNYLDIPHENYL WHICH CURE BY AN INTRAMOLECULAR CYCLIZATION [J].