申请人:"Luminescent Innovation Technologies" Limited
Liability Company
公开号:EP3006486A1
公开(公告)日:2016-04-13
Novel branched oligoarylsilanes and a method of their preparation are claimed. Novel branched oligoarylsilanes of general formula (I)
where R stands for a substituent from the row: linear or branched C1-C20 alkyl groups; linear or branched C1-C20 alkyl groups, separated by at least one oxygen atom; linear or branched C1-C20 alkyl groups, separated by at least one sulfur atom; branched C3-C20 alkyl groups, separated by at least one silicon atom; C2-C20 alkenyl groups; Ar stands for identical or different arylene or hetetoarylene radicals, selected from the row: substituted or unsubstituted thienyl-2,5-diyl, substituted or unsubstituted phenyl-1,4-diyl, substituted or unsubstituted 1,3-oxazole-2,5-diyl, substituted fluorene-4,4'-diyl, substituted cyclopentadithiophene-2,7-diyl; Q stands for a radical from the row described above for Ar; X stands for at least one radical, selected from the row described above for Ar and/or a radical from the row: 2,1,3-benzothiodiazole-4,7-diyl, antracene-9,10-diyl, 1,3,4-oxadiazole-2,5-diyl, 1-phenyl-2-pyrazolene-3,5-diyl, perylene-3,10-diyl where n stands for an integer from the row from 2 to 4; m stands for an integer from the row from 1 to 3; k stands for an integer from the row from 1 to 3. A method of preparation of branched oligoarylsilanes is that a compound of general formula (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 - Xm - 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.
本发明要求获得新型支链低聚芳基硅烷及其制备方法。通式为(I)的新型支链低聚芳基硅烷
其中 R 代表来自以下一行的取代基:直链或支链 C1-C20 烷基;直链或支链 C1-C20 烷基,至少被一个氧原子隔开;直链或支链 C1-C20 烷基,至少被一个硫原子隔开;支链 C3-C20 烷基,至少被一个硅原子隔开;C2-C20 烯基;Ar 代表来自以下一行的相同或不同的芳基或四芳基:取代或未取代的噻吩基-2,5-二基;取代或未取代的噻吩基-2,5-二基;取代或未取代的噻吩基-2,5-二基;取代或未取代的噻吩基-2,5-二基;取代或未取代的噻吩基-2,5-二基:取代或未取代的噻吩-2,5-二基、取代或未取代的苯基-1,4-二基、取代或未取代的 1,3-恶唑-2,5-二基、取代的芴-4,4'-二基、取代的环戊二烯噻吩-2,7-二基;Q 代表上述 Ar 一列中的一个基团;X 代表至少一个基团,选自上述 Ar 一列和/或上述 Ar 一列中的一个基团:2,1,3-苯并噻二唑-4,7-二基、蒽-9,10-二基、1,3,4-恶二唑-2,5-二基、1-苯基-2-吡唑啉-3,5-二基、亚珀-3,10-二基 其中 n 代表 2 至 4 行的整数;m 代表 1 至 3 行的整数;k 代表 1 至 3 行的整数。一种制备支链低聚芳基硅烷的方法是将通式(III)的化合物
其中 Y 代表硼酸或其酯或 Br 或 I 的残余物,在铃木条件下与通式 (IV) A - Xm - A (IV) 的试剂反应,其中 A 代表:技术成果是制备出了新型化合物,其特点是发光效率高、分子内能量从一些分子片段高效转移到另一些分子片段,而且热稳定性更高。