Cyanated benzoxanthene and benzothioxanthene compounds

US10125143B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Koenemann · Ludwigshafen, DE
• Gerhard Wagenblast · Wachenheim, DE
• Sorin Ivanovici · Ludwigshafen, DE
• Gabriele Mattern · Schifferstadt, DE
• Martina Mitgude · Havelsee, DE
• Gerd Weber · Bad Dürkheim, DE

Key dates

• Filing date: Mar 24, 2016
• Grant date: Nov 13, 2018
• Expiry date: Mar 24, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein are cyanated compounds of the formula (I) wherein at least one of the radicals R2, R3, R4 and R5 is CN, and the remaining radicals are selected from hydrogen, chlorine and bromine; X is O, S, SO or SO2; m is 0, 1, 2, 3 or 4; R1 is selected from bromine, chlorine, cyano, —NRaRb, C1-C24-alkyl, C1-C24-haloalkyl, C1-C24-alkoxy, C1-C24-haloalkoxy, C3-C24-cycloalkyl, heterocycloalkyl, heteroaryl, C6-C24-aryl, C6-C24-aryloxy, C6-C24-aryl-C1-C10-alkylene, etc.; A is a diradical selected from diradicals of the general formulae (A.1), (A.2), (A.3), and (A.4) wherein R6, (R7)n, (R8)o and (R9)p are as defined in the claims and in the description. Also disclosed are color converters containing at least one polymer as a matrix material and at least one cyanated compound of formula (I) or mixtures thereof as a fluorescent dye, the use of the color converters, and lighting devices containing an LED and at least one color converter.