42480-85-3Relevant academic research and scientific papers
Diarylvinyl-dihydrophenanthrene compounds
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, (2008/06/13)
New diarylvinyl-dihydrophenanthrene compounds of the formula STR1 wherein R1, R1 ', R2, R2 ', R3 and R3 ' are identical or different and represent hydrogen, alkyl with 1 to 12 carbon atoms, aralkyl with 1 to 4 carbon atoms in the alkyl part, alkoxy with 1 to 18 carbon atoms, phenyl-alkoxy with 1 to 4 carbon atoms in the alkoxy part, alkenyloxy with 3 to 4 carbon atoms, halogen, nitrile, a sulphonic acid group or its salts or functional derivatives, a carboxyalkoxy or carboxyl group or their salts or functional derivatives, or a sulphone group. These compounds are particularly useful as optical brighteners.
