A series of novel laterally O-difluoro-substituted terphenyl chiral liquid crystals have been synthesized through a simple route based on palladium-catalyzed cross-coupling reaction .

利用钯催化交叉偶合反应合成了一个系列的侧向邻二 氟 取代 三联 苯 光 活性 液晶 化合物。

Synthesis and Characterization of Novel Orderly Tetra-functional Compound Containing Terphenyl Bridge Maybe they are officers in need of compassionate leave .

新型结构规整的 三联 苯桥基四官能度化合物的合成与表征可能这些人是度探亲假的军官。

Indicator Significance of Terphenyl in Source Rocks of Lucan-1 Well in Qaidam Basin

柴达木盆地绿参1井烃源岩中 三联 苯 化合物的指示意义

Hydrogenation of terphenyl was performed under a hydrogen pressure of 5 140kg / cm ~ 2at 220 320 ℃ . The influences of pressure temperature and time on the depth of hydrogenation were investigated .

以 三联 苯为原料，在氢压5140kg/cm~2，温度220320℃条件下进行了加氢试验，考察了压力、温度、时间对加氢深度的影响。

ⅰ was oxidized by sodium hypobromite at 40-50 ℃ for 2 h to from 4 carboxy p terphenyl ( mp . 315-316 ℃) in 78 % yield .

在40～50℃，4乙酰基对 三联 苯经次溴酸钠氧化反应2h，得到4羧基对三联苯，收率为78%，熔点 315～316℃。

Synthesis and Properties of Laterally O-Difluoro-Substituted Terphenyl Chiral Liquid Crystals

侧向邻二 氟 取代 三联 苯 光 活性 液晶的合成与性质