Back to results
US 9,040,749 B2Granted
Borazine derivatives
AssigneesUniversité De Namur, UCL Business PLC
InventorsDavide Bonifazi, Simon Kervyn De Meerendre, Franco Cacialli, Oliver Fenwick
Life of this patent
Estimating the term…
Abstract
Borazine derivatives are used in the manufacture of electronic devices, in particular electroluminescent and semiconductor devices. More specifically, stable borazine derivatives include boron atoms substituted by aryl groups used in one or more layers of an electroluminescent or a semiconductor device, in particular in the emissive layer of organic light-emitting devices (OLED).
Claims13
A borazine derivative represented by the following formula:
- wherein the substituents R4 to R18 are the same or different from each other;
- wherein each of R4 to R18 is independently selected from the group consisting of:
- hydrogen;
- linear or branched saturated alkyl group;
- linear or branched unsaturated alkyl group;
- cycloalkyl group;
- aryl group;
- aralkyl group;
- heteroaryl group;
- acyl group;
- hydroxyl;
- alkoxy group;
- aryloxy group;
- acyloxy group;
- amino group;
- alkylamino group;
- arylamino group;
- acylamino group;
- cyano group;
- carboxyl group;
- thio group;
- aminocarbonyl group;
- carbamoyl group, aryloxycarbonyl group, phenoxycarbonyl group, alkoxycarbonyl group and halogen;
- wherein R4, R8, R9, R13, R14 and R18 cannot simultaneously be selected to be hydrogen;
- wherein R4 to R8 and R14 to R18 cannot simultaneously be selected to be fluorine;
- wherein the substituents R19 to R27 are the same or different from each other;
- wherein each of R19 to R27 is independently selected from the group consisting of:
- hydrogen;
- linear or branched saturated alkyl group;
- linear or branched unsaturated alkyl group;
- cycloalkyl group;
- aryl group;
- aralkyl group;
- heteroaryl group;
- acyl group;
- hydroxyl;
- alkoxy group;
- aryloxy group;
- acyloxy group;
- amino group;
- alkylamino group;
- arylamino group;
- acylamino group;
- cyano group;
- carboxyl group;
- thio group;
- aminocarbonyl group;
- carbamoyl group, aryloxycarbonyl group, phenoxycarbonyl group, alkoxycarbonyl group and halogen;
- wherein at least one substituent selected from the group of R6, R11 and R16 is independently selected from the group consisting of linear or branched saturated alkyl groups;
- and
- wherein at least two substituents selected from the group of R4, R8, R9, R13, R14 and R18 are independently selected from the group consisting of linear saturated alkyl groups and branched saturated alkyl groups.
48 more elements
Dependencies are inferred from the claim text.