Stilbene derivatives
Abstract
Abstract THE INVENTION CONCERNS NEW FLUORESCENT WHITENING AGENT CORRESPONDING TO THE FORMULA 1-E,4-((4-G-PHENYL)-CH=CH-)BENZENE WHEREIN E DENOTES A BENZTRIAZOL-2-YL OR NAPTH-(1,2-D)TRIAZOL-2-YL RADICAL AND G REPRESENTS A RADICAL OF THE FORMULA (R1,(R2)N-BENZOXAZOL-2-YL), NAPHTH(1,2-D)OXAZOL-2-YL, 2H-BENZOTRIAZOL-2-YL, 2H-NAPHTHO(1,2-D)TRIAZOL-2-YL, (2-(R3,R3''-PHENYL)-1,3,4-OXADIAZOL-5-YL) WHREIN R1 REPRESENTS HYDROGEN, CHLORINE, ALKYL OR ALKOXY WITH 1 TO 4 CARBON ATOMS, PHENYL OR PHENYLALKYL WITH 1 TO 4 CARBON ATOMS IN THE ALKYL PART, R2 REPRESENTS HYDROGEN OR ALKYL WITH 1 TO 8 CARBON ATOMS, R3 AND R3'' ARE IDENTICAL OR DIFFERENT AND DENOTE HYDROGEN, ALKYL WITH 2 TO 4 CARBON ATOMS OR A METHYL GROUP IN THE M-POSITION, CHLORINE OR ALKOXY WITH 1 TO 2 CARBON ATOMS, AND N REPRESENTS THE NUMBERS 1,2,OR 3, AS WELL AS A PROCESS FOR THEIR PREPARATION BY MEANS OF THE ANILE-SYNTHESIS.
Inventors
- 👤 A Siegrist
Bibliographic Details
Claims Analysis
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