Novel branched oligoarylsilanes of general formula (I)
A method of preparation of branched oligoarylsilanes is that a compound of general formula (III) Y-Q
k
-SiAr
n
—R)
3
(III), where Y stands for a residue of boronic acid or its ester or Br or I, reacts under Suzuki conditions with a reagent of general formula (IV) A-X
m
-A (IV), where A stands for: Br or I, provided that Y stands for a residue of boronic acid or its ester; or a residue of boronic acid or its ester, provided that Y stands for Br or I. A technical result is preparation of novel compounds, featured by a high luminescence efficiency, efficient intramolecular energy transfer from some molecular fragments to others, and an increased thermal stability.
通用公式(I)的新型分支寡芳基
硅烷的翻译如下:
一种制备分支寡芳基
硅烷的方法是,通式(III)Y-Qk-SiArn—R)3(III)的化合物,在Suzuki条件下与通式(IV)A-Xm-A(IV)的试剂发生反应,其中Y代表
硼酸或其酯或Br或I的残基,A代表Br或I,条件是Y代表
硼酸或其酯的残基;或
硼酸或其酯的残基,条件是Y代表Br或I。技术上的结果是制备具有高发光效率、分子片段之间高效内分子能量转移以及增加热稳定性的新型化合物。