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filingDate 1980-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1326d2ec0082e0f8f735a7c8abb0b835
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96562308c02d4215ac5d86c2553a518a
publicationDate 1981-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0025136-A1
titleOfInvention Light collector system and use of coumarin derivatives as energy converters in such systems
abstract Light collection system, characterized in that it is a coumarin derivative of the formulan n n T 0 oder NR., wobei R 4 für Wasserstoff, gegebenenfalls substituiertes Aryl, gegebenenfalls substituiertes Cycloalkyl oder gegebenenfalls substituiertes Aralkyl steht, R, ein über ein C-Atom gebundener carbo- oder heterocyclischer 5- oder 6-gliedriger Ring oder ein über ein N-Atom gebundener 5- oder 6-gliedriger heterocyclischer Ring, der zu einer durch die Cumarin-N-Heterocyclus-Bindung gelegten Achse rotationsunsymmetrisch ist, wobei die genannten 5- oder 6- gliedrigen Ringe nicht-ionogene Substituenten tragen können und an sie ein gegebenenfalls substituierter Benzol- oder ein gegebenenfalls substituierter Naphthalinring ankondensiert sein kann, bedeutet; Xn oder -ORz bezeichnet, wobei R 2 für Wasserstoff, Alkyl, Cycloalkyl, Aralkyl, Aryl, wobei die genannten Kohlenwasserstoffreste substituiert sein können R 3 zusätzlich zu den genannten Definitionen für R 2 noch einen Rest der Formeln R 6 -(X) n -CO- oder R 7 -(X) n -SO 2 - bezeichnet, in denenn R 6 , R 7 für Alkyl, Cycloalkyl, Aryl oder Aralkyl stehen, wobei die genannten Kohlenwasserstoffreste substituiert sein können, X für NH oder O und n für 0 oder 1 stehen, oder R 2 ,R 3 zusammen mit dem N-Atom und gegebenenfalls unter Einschluß weiterer Heteroatome einen 5- oder 6-gliedrigen Ring bilden, wobei dieser Ring nicht-ionogene Substituenten.tragen kann und an ihn ein gegebenenfalls substituierter Benzol- oder ein gegebenenfalls substituierter Naphthalinring ankondensiert sein kann, oder R 2 ,R 3 zusammen einen zweifach ungesättigten Rest der Formeln bilden, in dem R, für gegebenenfalls substituiertes Alkyl gegebenenfalls substituiertes Aryl, gegebenenfalls substituiertes Cycloalkyl oder gegebenenfalls substituiertes Aralkyl steht und Ri gegebenenfalls substituiertes Alkyl, Alkenyl, gegebenenfalls substituiertes Cycloalkyl, gegebenenfalls substituiertes Aryl und gegebenenfalls substituiertes Aralkyl bezeichnet, nsowie die Verwendung von Cumarinderivaten in Lichtsammelsystemen. contains in the T 0 or NR., Where R 4 represents hydrogen, optionally substituted aryl, optionally substituted cycloalkyl or optionally substituted aralkyl, R, a carbo- or heterocyclic 5- or 6-membered ring bonded via a C atom or a 5- or 6-membered heterocyclic ring bonded via an N atom, which forms a bond through the coumarin-N-heterocycle bond Axis is rotationally asymmetrical, where the 5- or 6-membered rings mentioned can carry non-ionic substituents and an optionally substituted benzene or an optionally substituted naphthalene ring can be fused onto them; X or -ORz, where R 2 represents hydrogen, alkyl, cycloalkyl, aralkyl, aryl, where the hydrocarbon radicals mentioned can be substituted In addition to the definitions given for R 2 , R 3 also denotes a radical of the formulas R 6 - (X) n -CO- or R 7 - (X) n -SO 2 -, in which R 6 , R 7 represent alkyl, cycloalkyl, aryl or aralkyl, where the hydrocarbon radicals mentioned can be substituted, X for NH or O and n stands for 0 or 1, or R 2 , R 3 together with the N atom and optionally including further heteroatoms form a 5- or 6-membered ring, which ring can carry non-ionic substituents and to it an optionally substituted benzene or an optionally substituted naphthalene ring can be condensed, or R 2 , R 3 together form a di-unsaturated radical of the formula form in which R represents optionally substituted alkyl optionally substituted aryl, optionally substituted cycloalkyl or optionally substituted aralkyl and R 1 denotes optionally substituted alkyl, alkenyl, optionally substituted cycloalkyl, optionally substituted aryl and optionally substituted aralkyl, and the use of coumarin derivatives in light collection systems.
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