Novel p-phenylstilbyl heterocyclic and naphthyl-vinylphenylene heterocyclic optical brighteners

Abstract

Abstract THE PRESENT INVENTION RELATES TO NEW COMPOUNDS OF THE FORMULA (4-(DELTA-),B-PHENYL)-CH=CH-GAMMA IN WHICH B REPRESENTS A HYDROGEN ATOM OR A METHYL GROUP, $ REPRESENTS A DIPHENYL OR 1-NAPHTHYL OR 2-NAPHTHYL RESIDUE AND $ DENOTES A RESIDUE OF THE SERIES WHERE (I) D REPRESENTS HYDROGEN OR PHENYL, E AND F REPRESENT PHENYL, STILLBENYL, P-PHENYLSTILLBENYL OR BENZOSTILBENYL, AND FURTHERMORE Y2 REPRESENTS A BRIDGE MEMBER -O-, -NH- OR -N(ALKYL)-, WHERE (II) U5 DENOTES HYDROGEN, A STRYRL RESIDUE OR A P-PHENYLSTYRYL RESIDUE, AND WHERE (III) TERMINAL PHENYL OR NAPHTHYL RESIDUES MAY CONTAIN ALKYL, HALOGEN OR ALKOXY GROUPS. THESE NEW COMPOUNDS REPRESENT VALUABLE OPTICAL BRIGHTENING AGENTS. -C<(-Y2-(1,2-PHENYLENE)-N=), 4-D,5-(C6H5-)OXAZOL-2-YL, 2-(4-U5-PHENYL),4,5-DI(C6H5-)IMIDAZOL-1-YL, AND 4-F,5-E-4H-1,2,4-TRIAZOL-3-YL 2H-BENZOTRIAZOL-2-YL, 2H-NAPHTHO(1,2-D)TRIAZOL-2-YL,

Inventors

• 👤 A Siegrist
• 👤 P Liechti
• 👤 E Maeder
• 👤 K Weber
• 👤 L Guglielmetti
• 👤 H Meyer

Bibliographic Details