Heterocyclic fluorescent dyes and method of production thereof
The invention relates to novel compounds of formula (III) that can be used as heterocyclic dyes of unique structure and properties. These compounds can be obtained in a three-step synthesis from simple substrates. The compounds according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the compounds according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.
1. A compound of formula
wherein
R 3 is hydrogen, halogen; cyano, C 1 -C 25 alkoxy, C 1 -C 25 alkyl substituted with one or
more halogen atoms; C 1 -C 25 alkyl
wherein
X is O, S, Se, or NR 4 , where R 4 is hydrogen, C 6 -C 18 aryl, C 6 -C 18 aryl which is substituted by C 1 -C 18 alkyl, halogen, cyano, C 1 -C 18 alkoxy, C 1 -C 25 alkyl which may optionally be interrupted by one or more oxygen or sulfur atoms and may optionally be substituted by one or more halogen atoms, or C 7 -C 25 arylalkyl;
R 22 to R 25 and R 29 to R 33 represent independently of each other H, F, cyano, C 1 -C 25 alkoxy, C 1 -C 25 alkyl substituted with one or more halogen atoms; or C 1 -C 25 alkyl, and
R 26 is H, F, cyano, phenyl, C 1 -C 25 alkoxy, C 1 -C 25 alkyl substituted with one or more halogen atoms, or C 1 -C 25 alkyl;
R 99 , R 99′ , R 99″ and R 99* are independently of each other hydrogen, C 1 -C 25 alkyl, or C 1 -C 25 alkyl interrupted by one or more oxygen atoms; preferably C 3 -C 25 alkyl, or C 3 -C 25 alkyl which is interrupted by one or more oxygen atoms;
R 121 , R 122 , R 123 , R 124 and R 125 are independently of each other hydrogen, halogen, C 1 -C 18 alkoxy or C 1 -C 25 alkyl; preferably hydrogen; and
R 130 is hydrogen, C 6 -C 18 aryl; C 6 -C 18 aryl which is substituted by C 1 -C 18 alkyl, halogen; or C 1 -C 18 alkoxy; C 1 -C 25 alkyl, which may optionally be interrupted by one or more oxygen or sulphur atoms and/or is optionally substituted by one or more halogen atoms; or C 7 -C 25 arylalkyl.
2. The compound of claim 1 , wherein the compound is according formula IN-1.
3. The compound of claim 1 , wherein the compound is according formula IN-2.
4. The compound of claim 1 , wherein the compound is according formula IN-3.
5. The compound of claim 1 , wherein the compound is according formula IN-4.
6. The compound of claim 1 , wherein the compound is according formula IN-5.
7. The compound of claim 1 , wherein the compound is according formula IN-6.
8. The compound of claim 1 , wherein the compound is according formula IN-7.
9. The compound of claim 1 , wherein the compound is according formula IN-8.
10. The compound of claim 1 , wherein the compound is according formula IN-9.
11. The compound of claim 1 , wherein the compound is according formula IN-10.
12. The compound of claim 1 , wherein the compound is according formula IN-11.
13. The compound of claim 1 , wherein the compound is according formula IN-12.
14. The compound of claim 1 , wherein the compound is according formula IN-13.
15. The compound of claim 1 , wherein the compound is according formula IN-14.
16. The compound of claim 1 , wherein the compound is according formula IN-15.
17. The compound of claim 1 , wherein the compound is according formula IN-16.
18. The compound of claim 1 , wherein the compound is according formula IN-17.