| abstract |
4,4-Diarylbutadienes (I) are new. Diaryl-butadienes of formula (I) (where the diene system is in Z,Z, E,Z, Z,E or E,E configuration, or a mixture of these) are new: R1, R2 = H; 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 3-10C cycloalkenyl, 1-12C alkoxy, 1-20C alkoxycarbonyl, mono- or di-(1-12C alkyl)-amino, aryl or heteroaryl (optionally substituted); or water-solubilizing substituents selected from carboxylate, sulfonate and ammonium groups; R3 = H, COOR5, COR5, CONR5R6 or CN; R4 = COOR6, COR6 or CONR5R6; R5 = H, -(X)o-R7 or -(1-6C) alkylene-Q; Q = SO3Y, PO3Y or N<+)<R8)3.A<->; R6 = as R5 but not H; X = (CH2)pZ, CHMeCH2Z or CH2CHEtZ; p = 2-4; A = Cl, Br, I or SO4R9; Y = H, Na<+>, K<+>, Mg<2+>, Ca<2+>, Li<+>, Al<3+> or N(R8)4<+>; Z = O or NH; R7, R8 = H, 1-8C alkyl, 2-6C alkenyl or 1-6C acyl; R9 = H, 1-6C alkyl or 2-6C alkenyl; n = 1-3; and o = 1-150. |